Cyclonic separating apparatus

The present invention relates to a cyclonic separating apparatus. In particular, but not exclusively, the present invention relates to a cyclone-type separator used in a vacuum cleaner.

Cyclone separators are well known and have applications in a wide variety of applications. Over the last decade or so, the use of cyclone separators that separate particles from the airflow of vacuum cleaners has been developed and introduced to the market. A detailed description of the cyclone separator for use in vacuum cleaners is specifically disclosed in three prior art documents (see, eg, Patent Documents 1-3).<patcit num="1"><text>U.S. Pat. No. 3,425,192</text></patcit><patcit num="2"><text>U.S. Pat. No. 4,373,228</text></patcit><patcit num="3"><text>European Patent No. 0 042 723</text></patcit>

From these and other prior art literature, it can be seen that it is well known that two cyclone units are provided in parallel so that the airflow passes through at least two cyclones in sequence. This allows the second cyclone to operate fairly effectively under optimal conditions, removing very fine particles in an effective manner, while removing large dust and dirt from the airflow of the first cyclone. Allows debris to be extracted. This type of device has proven to be effective when dealing with airflows that carry a variety of materials with a wide particle size distribution. Vacuum cleaners fall into such cases.

Both vacuum cleaners are desired to be compact and energy efficient. A more desirable feature is the large capacity for collecting dust and debris to reduce the frequency of emptying. In some known devices, the downstream cyclone is located inside the upstream cyclone in an attempt to minimize the size of the vacuum cleaner (see, eg, Patent Documents 2 and 3).

However, this reduces the volume of the vacuum cleaner as the downstream cyclone occupies space that would otherwise be useful for dust and dust collection. In the type of device shown in the prior art literature, the downstream cyclone is located outside the upstream cyclone, but the partially purified air from the upstream cyclone then travels a distance to the inlet of the downstream cyclone. Must.

This increases the overall pressure drop across the device and thus reduces the energy efficiency of the device.

Furthermore, the volume of the means for guiding the partially purified air is added to the total volume of the machine. It is well known from the prior art literature to provide a cyclone-type separator that shapes the cyclone outlet to perform a second cleansing action on the evacuated air (see, eg, Patent Document 4).<patcit num="4"><text>German Patent No. 615004</text></patcit>

<p> It is an object of the present invention to provide a cyclone-type separator with improved capacity for collecting separated particles and improved energy efficiency. Another object of the present invention is to provide a cyclone type separator suitable for use in a vacuum cleaner and achieving improved performance as compared with the prior art. It is also a further object of the present invention to provide a cyclone type separator capable of alleviating the drawbacks of the prior art.</p>

<p> The present invention is a cyclone type separation device including an upstream cyclone unit and a downstream cyclone unit, wherein the upstream cyclone unit includes at least one cyclone having a first end and a second end, and the downstream cyclone unit is the first. In a cyclone-type separator comprising at least one cyclone having an end and a second end, the orientation of at least one of the cyclones in the downstream cyclone unit is relative to the orientation of at least one of the upstream cyclone units. Provided is a cyclone type separation device characterized in that the upstream and downstream cyclone units are arranged relative to each other so as to be substantially reversed.</p><p> The reversal of the downstream cyclone unit with respect to the upstream cyclone unit is arranged in such a manner as to reduce the length of the air flow path between the upstream cyclone unit and the downstream cyclone unit, especially when the downstream cyclone unit is installed outside the upstream cyclone unit. to enable. This means that the pressure drop across the device can be kept to a minimum, which improves the energy efficiency of the device while keeping the collection capacity of the device as high as possible.</p><p> In a preferred embodiment, the downstream cyclone unit is installed outside the upstream cyclone unit and the top cyclone of the upstream cyclone unit or the first end of each cyclone and the bottom cyclone of the downstream cyclone unit or the first end of each cyclone. And are arranged substantially at right angles. Thus, the cyclone of the upstream cyclone unit or the outlet of each cyclone is installed near the cyclone of the downstream cyclone unit or the entrance of each cyclone. This ensures that the length of the airflow path between the cyclone units is minimized so that losses are kept to a minimum. The cyclone of the downstream cyclone unit or the second end of each cyclone projects away from the upstream cyclone unit rather than being installed inside the upstream cyclone unit. This maximizes the capacity of the upstream cyclone unit for collecting dust and debris and thus reduces the frequency with which it is necessary to empty the upstream cyclone unit.</p><p> A preferred feature of the embodiments described above is that the cyclones of the downstream cyclone unit are tilted relative to each other so that the cyclones approach each other at their second end. This arrangement prevents the deposition of separated dust and dirt on the outer surface of the cyclone of the upstream cyclone unit.</p><p> The device according to the invention is preferably incorporated into a vacuum cleaner, preferably a household vacuum cleaner. This is because the combined benefits of increased collection capacity and reduced pressure drop are particularly useful for vacuum cleaners. The user sees the advantage of reduced power consumption and less frequent emptying process.</p><p> Other preferred features are described in the dependent claims.</p>

Embodiments of the present invention will be described with reference to the accompanying drawings.

1a and 1b show a household vacuum cleaner 10 incorporating a cyclone-type separator according to the present invention. The vacuum cleaner 10 includes an upright main body 12, and a motor casing 14 is installed at the lower end of the main body 12. The vacuum cleaner head 16 is mounted on the motor casing 14 in an articulated manner. The suction inlet 18 is provided in the vacuum cleaner head 16. Also, the wheels 20 are rotatably attached to the motor casing 14 to allow the vacuum cleaner 10 to be skillfully operated over the surface to be cleaned.

The cyclone type separator 100 is attached to an upright main body 12 above the motor casing 14. The cyclone separator 100 is seated on a substantially horizontal surface composed of the filter cover 22. The filter cover 22 is installed above the motor casing 14 and forms a filter (not shown) cover behind the motor. The cyclone type separator 100 is also fixed to the main body 12 which is upright by a clip 24 installed on the top of the cyclone type separator 100. The upright main body 12 includes an upstream line (not shown) for carrying dirty air to the inlet of the cyclone type separator 100 and a downstream line for carrying clean air from the cyclone type separator 100. Incorporates 26.

The upright body 12 further includes a hose and wand assembly 28 that can be held in the shape configuration shown in the drawing to act as a handle for skillfully manipulating the vacuum cleaner 10 over the surface to be cleaned. It is incorporated. Alternatively, the hose and wand assembly 28 may be released to enable the distal end 28a of the wand, along with, for example, a floor tool (not shown) that serves to clean stairs, upholstery materials, and the like. The structure and operation of the hose and wand assembly 28 is not important to the present invention and will not be described in more detail herein. The overall structure and operation of the hose and wand assembly 28 shown in FIGS. 1a and 1b is similar to that described in US Reissue Patents 32, 257, which is incorporated herein by reference. .. Also, some tools and accessories 30a, 30b, 30c are releasably attached to the upright body 12 for storage purposes during use.

The exact details regarding the features of the vacuum cleaner 10 described above are not important to the present invention. The present invention relates to the details of the cyclone type separator 100 which constitutes a part of the vacuum cleaner 10. To activate the cyclone separator 100, the motor installed in the motor casing 14 evacuates the air through either the suction inlet 18 or the distal end 28a of the hose and wand assembly 28. It is operated so that it is sucked into the vacuum machine. This dirty air (air that carries dust and dirt inside) is passed through the cyclone type separator 100 via an upstream pipeline. After the air has passed through the cyclone separator 100, the air is routed from the cyclone separator 100 and reaches the motor casing 14 via the downstream pipeline 26 down the upright body 12. .. The purified air is used to cool the motor installed in the motor casing 14 before being discharged from the vacuum cleaner 10 via the filter cover 22.

This operating principle of the vacuum cleaner 10 is well known from the prior art. The present invention relates to the cyclone type separator 100 shown in FIGS. 2a, 2b and 2c, which is separated from the vacuum cleaner 10.

The cyclone type separator 100 shown in FIG. 2 includes an upstream cyclone unit 101 composed of a single upstream cyclone 102 and a downstream cyclone unit 103 composed of a plurality of downstream cyclones 104. The upstream cyclone 102 is a closed base<u style="single">Part 1</u>It consists substantially of a cylindrical bin 106 comprising 08. Open top of cylindrical bottle<u style="single">Part 1</u>10 abuts against the cylindrical top formation 112 defining the upper end of the upstream cyclone 102. The inlet 114 is provided in the cylindrical bin 106 to allow clean air to be introduced inside the upstream cyclone 102. The inlet 114 is shaped, positioned, and shaped to communicate with an upstream pipeline that carries air, which is full of dirt, from the vacuum cleaner head 16 to the cyclone separator 100. The handles 116 and catch 118 provide a means for opening the cylindrical bin 106 from the top formed 112 when the cylindrical bin 106 needs to be emptied. It is provided in each. A seal (not shown) may optionally be provided between the cylindrical bin 106 and the upper part 112.

The base 108 of the cylindrical bottle may be hinged to the rest of the cylindrical bottle to provide additional access to the interior of the cylindrical bottle 106 for the purpose of emptying the interior if desired. The embodiments illustrated herein include a mechanism for allowing the base 108 to be hinged open to allow it to be emptied, the details of such a mechanism being the subject of a co-pending application. Since it is configured, it will not be described in more detail here.

Seven equivalent downstream cyclones 104 are provided in the downstream cyclone unit 103. The downstream cyclone 104 is arranged at equal angles around the central longitudinal axis 150 of the downstream cyclone unit 103. This central longitudinal axis coincides with the longitudinal axis of the upstream cyclone unit 101. Its layout is shown in Figure 2c. The downstream cyclone 104 has a truncated conical shape with a large end located at the bottom (first end of the downstream cyclone unit) and a small end located at the top (second end of the downstream cyclone unit), respectively. doing. Each of the downstream cyclones 104 comprises a longitudinal axis 148 (see FIG. 3b) that is slightly inclined towards the longitudinal axis 150 of the downstream cyclone unit 103. This feature configuration will be described in more detail. Further, the outermost point of the lowermost end of each downstream cyclone 104 (the first end of the downstream cyclone unit) extends radially from the longitudinal axis 150 of the downstream cyclone unit 103 to the wall of the cylindrical bin 106. Exists. The top end of the downstream cyclone 104 (the second end of the downstream cyclone unit) projects into the collection formation 120 extending upward from the surface of the downstream cyclone 104. The collection formation 120 supports the handle 122. This handle can carry the entire cyclone separator 100. A catch 124 is provided on the handle 122 for the purpose of fixing the cyclone separator 100 to the upright body 12 at the upper end of the separator. An outlet port 126 is provided in the superstructure 112 to guide the cleaned air from the cyclone separator 100. The outlet port 126 is arranged and formed in cooperation with the downstream line 26 that carries the cleaned air into the motor casing 14.

The collection formation 120 also carries an actuating lever 128 configured to actuate a mechanism that opens the base 108 of the cylindrical bin 106 for emptying purposes as described above.

Here, the internal configuration of the cyclone type separator 100 will be described with reference to FIG. 3b. FIG. 3a shows lines III-III corresponding to FIG. 2a and in which the cross section of FIG. 3b is cut off.

The internal shape configuration of the upstream cyclone 102 includes an internal wall 132 extending over its entire length. The interior space defined by the interior wall 132 communicates with the interior of the collection formation 120, as described below. The purpose of the inner wall 132 is to define a collection space 134 for fine dust. Inside the interior wall 132 and within the collection space 134, a plurality of components are installed that allow the base 108 to be opened when the actuating lever 128 is activated. The exact details and actions of these components are not important to the present invention and will not be described in more detail here.

On the outside of the inner wall 132, four equally spaced baffles or fins 136 that project radially from the inner wall 132 toward the cylindrical bin 106 are attached. These baffles 136 support the deposition of large dust and dust particles in the collection space defined between the interior wall 132 adjacent to the base 108 and the cylindrical bin 106. The specific shape configuration of the baffle 136 is described in detail in International Publication No. 00/04816 Pamphlet.

A shroud 140 is installed on the outside of the inner wall 132 above the upstream cyclone 102. The shroud extends upward from the baffle 136 and defines the passage 142 with the inner wall 132. The shroud 140 comprises a perforated portion 144 that allows air to pass from inside the upstream cyclone 102 to the air passage 142. The air passage 142 communicates with each inlet 146 of the downstream cyclone 104. Each inlet 146 is arranged in a spiral casing mode so that air entering each downstream cyclone 104 is forced to follow a spiral path within each downstream cyclone 104.

As described above, the longitudinal axis 148 of each downstream cyclone 104 is tilted toward the longitudinal axis 150 of the downstream cyclone unit 103. The upper end of each downstream cyclone 104 is closer to the longitudinal axis 150 than its lower end. In this embodiment, the tilt angle of the plurality of related axes 148 is substantially 7.5 °.

As mentioned above, multiple upper parts of the downstream cyclone 104<u style="single">The edge is</u>, Protruding inside the collection formation 120. The interior of the collection formation 120 defines a chamber 152 in which multiple upper ends of the downstream cyclone 104 communicate. Inside the chamber 152, a plurality of overall radial fins 153 project downward from the upper surface of the collection formation 120 (see FIG. 5). Fins 153 extend inward from the outer wall 123 of the collection formation 120 to the inner wall 129 surrounding the mechanism that opens the base 108 of the cylindrical bin 106 for emptying purposes. Fins 153 are the plurality of upper ends of the cyclone 104.<u style="single">Of the department</u>It extends downward to a level lower than the level. This arrangement prevents any dust and dirt leaving one upper end of the cyclone 104 from moving to and inward adjacent cyclones via the upper end of the cyclone. If this happens, there is a risk that dust and dirt previously separated from the air stream by the first cyclone will be returned to this air stream via the adjacent cyclone.

Both the surfaces of the collection formation 120 and the downstream cyclone 104 define an axially extending passage 154 located in the downstream cyclone 104 that communicates with the collection space 134 defined by the interior wall 132. Thus, dust and dirt leaving the small end of the downstream cyclone 104 can pass from the chamber 152 to the collection space 134 via the passage 154.

Each downstream cyclone 104 has an air outlet in the form of a vortex detector 156. Each vortex detector 156, as is customary, is at the bottom of each downstream cyclone 104.<u style="single">At the edge</u>Located in the center. In this embodiment, the central body 158 is located at each vortex detector 156. Each vortex detector communicates with the annular chamber 160, which in turn communicates with the output port 126 (see Figure 2c).

FIGS. 4a, 4b and 4c show the arrangement configuration of the downstream cyclone 104 in great detail. In particular, this assists in showing the shape configuration of passage 154. FIG. 4b also assists in explaining the fact that each side of the downstream cyclone 104 closest to the longitudinal axis of the downstream cyclone unit 103 is located substantially parallel to this axis.

The operation modes of the above-mentioned devices are as follows. Dirty air (air in which dust and dirt are carried inside) enters the cyclone separator 100 via the inlet port 114. The arrangement of the inlet port 114 is substantially in contact with the wall of the cylindrical bin 106. This wall allows incoming air to follow a spiral path around the inside of the cylindrical bin 106. Large dust and dust particles, along with drifting debris and other large debris, are well known to be deposited in the collection space 138 adjacent to the base 108 by the action of centrifugal force acting on the particles. Partially purified air exits the upstream cyclone 102 via the perforated portion 144 of the shroud 140 and travels inward and upward away from the base 108. The partially purified air then moves along the air passage 142. Air is distributed in seven parts within this passage. Each part enters one of the downstream cyclones 104 via its respective entrance 146. As described above, each inlet 146 is a swivel inlet that forces incoming air to follow the internal spiral path of the downstream cyclone 104. The tapered shape of the downstream cyclone 104 causes the stronger cyclone-type separation that occurs inside the downstream cyclone 104 so that very fine dust and dust particles are separated from the main air stream. Dust and dust leave the top of the downstream cyclone 104 (the second end of the downstream cyclone unit), while the purified air runs along the axis 148 of the downstream cyclone 104 at the bottom of the downstream cyclone 104 (downstream). Return to the first end of the cyclone unit) and exit via vortex detector 156. The purified air from the vortex detector 156 enters the annular chamber 160 and passes from there to the outlet port 126. Meanwhile, dust and dirt separated from the air stream of the downstream cyclone 104 falls from the chamber 152 through the passage 154 to the collection space 134. Fins 153 prevent dust and dirt from passing through the open top edge of the adjacent cyclone 104.

When it is desired to empty the cyclone separator 100, the base 108 is cylindrical so that the dust and debris collected in the collection spaces 134 and 138 can be allowed to fall into a suitable container. The hinge connection can be released from the side wall of the shape bin 106. As described above, the details of the operation of the emptying mechanism do not constitute a part of the present invention and will not be described in more detail.

The present invention is not limited to the exact details of the embodiments described above. A second embodiment of the cyclone type separator 200 suitable for using a household vacuum cleaner is illustrated in FIG. In this embodiment, the device 200 comprises an upstream cyclone unit 201 consisting of a single upstream cyclone 202. The upstream cyclone unit 202 comprises a substantially cylindrical bin 204 having a tangential inlet 206 located at its upper end (first end of the upstream cyclone unit). The cylindrical bottle 204 is partially closed at its upper end by an annular barrier 208. A shroud 210 with a perforated portion 212 above its lower end 214 hangs from the annular barrier 208. The annular barrier 208 extends radially from the shroud 210 to the outer wall of the cylindrical bottle 204. The downstream cyclone unit 203 with a single downstream cyclone 206 is located above the upstream cyclone 202. The downstream cyclone 216 has a truncated conical shape with a large end (the first end of the downstream cyclone unit) located at its lowermost end. The diameter of the lowermost end of the downstream cyclone 216 roughly corresponds to the diameter of the upstream cyclone 202. The plurality of tangential inlet ports 218 provide communication between the upper end of the shroud 210 and the inside of the lowermost end of the downstream cyclone 216 (the first end of the downstream cyclone unit).

The top edge of the downstream cyclone 216 (the second end of the downstream cyclone unit) opens into a collection chamber 220 sealed around the top edge of the downstream cyclone 216. The collection chamber 220 is preferably cylindrical, but can take any other convenient shape. The diameter of the collection chamber 220 directly above the upper end of the downstream cyclone 216 (the second end of the downstream cyclone unit) is at least 3 the diameter of the top end of the downstream cyclone 216 (the second end of the downstream cyclone unit). It is double. The vortex detector 222 is installed at the center of the lowermost end of the downstream cyclone (the first end of the downstream cyclone unit). The vortex detector 222 communicates with an elongated outlet tube 224 along the axis of the cylindrical bottle 204 and penetrating the base of the cylindrical bottle (the second end of the upstream cyclone unit).

The device operates as follows. The dust-laden air enters the device 200 via the tangential inlet 206, and a cyclone-type operation occurs in the upstream cyclone 202. Large particles of dust and deposits are collected in this cylindrical bin adjacent to the base of the cylindrical bin 204 (the second end of the upstream cyclone unit), while the partially purified air is shrouded. The upstream cyclone 202 exits via the perforated portion 212 of 210. At this time, the partially purified air passes through the downstream cyclone 216 via the tangential inlet 218. Fine dust and dirt are separated by the downstream cyclone 216, and dust and dust particles exit the upper end of the downstream cyclone (the second end of the downstream cyclone unit) and collect inside the collection chamber 220. Clean air passes through the downstream cyclone 216 via the vortex detector 222 and exits the cyclone separator 200 via the outlet pipe 224.

A further embodiment is shown in FIG. The device 300 shown in this embodiment includes an upstream cyclone unit 301 including a single upstream cyclone 302 and a downstream cyclone unit 303 including a single downstream cyclone 304. The upstream cyclone 302 is the upper part of the cylindrical bin 306.<u style="single">On the edge</u>It comprises this cylindrical bin with a tangential inlet 308 located. The downstream cyclone 304 is, as mentioned above, its large end.<u style="single">Department</u>Provided at the bottom edge and its small end<u style="single">Department</u>It has a truncated cone shape at the top, but is located inside the upstream cyclone 302. Thus, the large end of the downstream cyclone 304 is the base of the cylindrical bin 306 away from the inlet 308.<u style="single">In the department</u>Adjacently located, the small end of the downstream cyclone 304 projects within the cylindrical bin 306 towards the inlet 308 of the cylindrical bin.

The shroud 310 is located within the upstream cyclone 302 and surrounds most of the downstream cyclone 304. The shroud 310 comprises a perforated portion 312 that forms an outlet for partially purified air to escape from the upstream cyclone 302. A passage 314 is formed between the shroud 310 and the surface of the downstream cyclone 304, through which air exiting can pass. The passage 314 communicates with the annular chamber 316, from which the plurality of tangential inlets 318 lead to the lowermost end of the downstream cyclone 304 (the first end of the downstream cyclone unit).

The upper end of the downstream cyclone 304 (the second end of the downstream cyclone unit) opens into a collection chamber 320 that surrounds the upper end of the downstream cyclone 304. The collection chamber 320 is sealed against the outer surface of the downstream cyclone 304 so that dust and dirt released into the collection chamber 320 are contained therein. Access to any suitable form of collection chamber 320 is provided that allows the collected dust and dust to be removed for the purpose of emptying. For example, a removable portion may be provided at the end of the collection chamber 320 to allow the collection chamber 320 to be turned upside down and emptied. A vortex detector 322 is provided in the center of the lowermost end of the downstream cyclone 304 (the first end of the downstream cyclone unit) to form an outlet for the purified air from the downstream cyclone 304.

Upon operation, dirty air enters the upstream cyclone 302 via the tangential inlet 308 and descends the cylindrical bin 306 along a spiral path, thus causing large dust and drift to collect at the bottom of the bin 306. Centrifuge the object. Partially purified air exits the upstream cyclone through the perforation 312 of the shroud 310 and passes along the passage 324 to the annular chamber 316. From there, partially purified air passes along the tangential inlet 318 and within the downstream cyclone 304. Here, the air is forced to follow the spiral path again. A strong centrifugal force is generated when air rises and passes through the cyclone 304 toward the small end of the cyclone (the second end of the downstream cyclone unit). The separated dust and dust particles are discharged from the small end of the cyclone 304 and collected in the containment chamber 320, while the cleaned air exits the cyclone 304 via the vortex detector. From the vortex detector, the purified air is led far from the cyclone separator 300 to the motor for cooling purposes.

The present invention is not limited to the exact details of the embodiments described above. It should be emphasized that the characteristics of the vacuum cleaner in which the cyclone cleaning device should be used are not important to the present invention. In fact, it is believed that the cyclone separators of the type described above can be used in other areas where good efficiency is required in combination with low pressure drop. It can be seen that, if desired, either or both of the upstream and downstream cyclone units can consist of a single cyclone or multiple cyclones arranged in parallel. Furthermore, it is not particularly necessary to arrange the device so that the axes of the cyclone unit are vertical and these axes can be tilted vertically or even horizontally, if desired. The fact that centrifugation is not strongly affected by gravity makes this possible as long as the collection area of the cyclone unit is arranged to collect the drifting material without interfering with the airflow path required for effective separation. .. In a further modification to the embodiment detailed above, the downstream cyclones shown in FIGS. 1-5 are tilted towards the axis of the downstream cyclone unit as their respective axes are shown in the drawings. Instead, they can be arranged so that they are arranged parallel to each other. Other changes and amendments will be obvious to those skilled in the art.

<figref num="1a">It is a front view of the vacuum cleaner which incorporated the cyclone type separation device by this invention.</figref><figref num="1b">It is a side view of the vacuum cleaner which incorporated the cyclone type separation device by this invention.</figref><figref num="2a">It is a front view of the 1st Embodiment of the cyclone type separation apparatus which constitutes a part of the vacuum cleaner of FIG. 1a and FIG. 1b.</figref><figref num="2b">It is a side view of the 1st Embodiment of the cyclone type separation apparatus which constitutes a part of the vacuum cleaner of FIG. 1a and FIG. 1b.</figref><figref num="2c">It is a top view of the 1st Embodiment of the cyclone type separation apparatus which constitutes a part of the vacuum cleaner of FIG. 1a and FIG. 1b.</figref><figref num="3a">It is a front view of the cyclone type separator of FIG. 2a, FIG. 2b and FIG. 2c.</figref><figref num="3b">It is a side sectional view of the cyclone type separator of FIGS. 2a, 2b and 2c, cut along the line III-III of FIG. 3a.</figref><figref num="4a">It is a perspective view of the cyclone type separator of FIG. 2a, FIG. 2b and FIG. 2c.</figref><figref num="4b">It is a top view of the cyclone type separator of FIG. 2a, FIG. 2b and FIG. 2c.</figref><figref num="4c">It is a side sectional view of the cyclone type separator of FIG. 2a, FIG. 2b and FIG. 2c, cut along the line IV-IV of FIG. 3b.</figref><figref num="5">It is sectional drawing of a part of the cyclone type separator of FIG. 2a, FIG. 2b and FIG. 2c cut along the VV line of FIG. 2b.</figref><figref num="6">FIG. 5 is a schematic side view of a second embodiment of a cyclone type separator suitable for use in a vacuum cleaner according to the present invention.</figref><figref num="7">FIG. 5 is a schematic side view of a third embodiment of a cyclone type separator suitable for use in a vacuum cleaner according to the present invention.</figref>

Code description

10 vacuum cleaner 12 body 14 Motor casing 16 Vacuum cleaner head 18 Suction inlet 20 wheels 22 Filter cover 24 clips 26 Downstream pipeline 28 Hose and wand assembly 28a Distal end of wand 30a, 30b, 30c Some tools and accessories 100 cyclone type separator 101 upstream cyclone unit 102 Upstream cyclone 103 Downstream cyclone unit 104 Downstream Cyclone 106 Cylindrical bottle 108 base (second end of upstream cyclone unit) 110 Upper end (1st end of upstream cyclone unit) 112 Top formation 114 entrance 116 handle 118 catch 120 Collected formations 122 handle 126 Exit port 128 Actuating lever 132 Interior wall 134 Collection space 136 baffles or fins 140 shroud 142 passage 144 Perforated part 146 entrance 148 Longitudinal axis 150 Longitudinal axis 152 chamber 153 fins 156 Vortex detector 158 Central body 160 annular chamber 200 Cyclone type separator 202 upstream cyclone 204 Cylindrical bottle 206 entrance 208 Circular barrier 210 shroud 212 Perforated area 214 Bottom edge 216 Downstream cyclone 218 Tangent entrance port 220 collection chamber 222 Vortex detector 224 Exit pipe 300 equipment 302 upstream cyclone 304 Downstream Cyclone 306 Cylindrical bottle 308 Tangent entrance 310 shroud 312 Perforated area 314 passage 316 annular chamber 318 Tangent entrance 320 collection chamber