Fluid system with internal filter

The invention relates to with a filter assembly (60) liquid system, wherein the filter assembly for preventing the particle to move each parts of liquid. The filter assembly is fluid path, wherein the fluid path (for example flexible textile assembly (71)) and a liquid system of between the energy source, wherein the part of liquid system possibly component from the energy source (e.g. valve (42) the particle affects. The liquid system, particularly of the filtering module can be applied (e.g.). shoe product.