BRAKE BOOSTER WITH FILTER FORMING POROUS BELLOWS Russian patent published in 1998 - IPC

FIELD: transport engineering; pneumatic brake booster. SUBSTANCE: pneumatic brake booster has pneumatic piston sliding in housing and enclosed in hollow protective bellows first end of which being connected with housing. Piston carries valve at one side and cleaning filter at the other side placed between valve and pressure source. Bellows is made, at least partially, of porous deformable material playing the part of cleaning filter. EFFECT: enlarged operating capabilities. 3 cl, 2 dwg