Brake servo-unit comprising a floating element bearing...

Details Brake servo-unit comprising a floating element bearing... Brake servo-unit comprising a floating element bearing...

2006-06-20

2006-06-20

Kershteyn, Igor (Department: 3745)

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

C091S37600A

Reexamination Certificate

active

07063001

ABSTRACT:
A pneumatic servomotor for power-assisted braking for a motor vehicle having a control rod (38) for opening and closing at least one axial inlet valve (52) that is interposed between a front chamber (16) connected to a pressure source having a pressure (Pa) greater than a first pressure (P1) and a back chamber (18) and at least one axial balancing valve (50) for actuating a moving partition (14) located between the front chamber (16) and the back chamber (18). The servomotor being characterized by one-piece floating tubular element (76) having axially offset transverse faces (78,80) that have sealing elements (82,84) for sealing the axial inlet valve (52) and the balancing valve (50) with the control rod (38) being activated by a dish-shaped washer (49) carrying two springs (40,122) of different stiffnesses.

REFERENCES:
patent: 6209442 (2001-04-01), Haerr et al.
patent: 6269731 (2001-08-01), Gautier et al.
patent: 6467390 (2002-10-01), Harth et al.
patent: 6516705 (2003-02-01), Vermoesen et al.
patent: 6755116 (2004-06-01), Tsubouchi et al.
patent: 19741133 (1999-03-01), None
patent: 19835772 (2002-02-01), None
patent: 2687972 (1993-09-01), None

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