Power plants – Pressure fluid source and motor – Pulsator
Patent
1992-05-11
1993-04-13
Look, Edward K.
Power plants
Pressure fluid source and motor
Pulsator
913691, 91376K, 92 98R, 92 99, B60T 1300, F15B 910
Patent
active
052011798
ABSTRACT:
The invention relates to a brake subassembly for a vehicle having an engine compartment and a passenger cell separated by a bulkhead (46), the subassembly comprising: a pneumatic boost servomotor controlled by way of a pedal (28) and intended to be fixed to the bulkhead (46), the servomotor comprising, coaxially, a front shell (14), having a cylindrical wall, and a rear cover (16) and having, on the inside, two chambers (18, 20) separated in leaktight fashion by a piston (22) provided with a diaphragm (26) ensuring leaktightness between the two chambers, a master cylinder (10) fixed to the front shell (14) and at least one brake pedal (28). According to the invention, the shell (14) and the cover (16) are each provided with a radial peripheral rim, the rim (52) of the cover bearing directly on that (50) of the shell, which bears on the bulkhead (460 on the passenger-cell side; the cover (16) has a circular centering tongue (56), which projects into the servomotor and the inner end of which comes to compress radially the peripheral end of the diaphragm (26) on the cylindrical wall of the shell (14), and a plurality of mutually parallel ribs (36) which project from its exterior wall and certain of which (34) constitute support pieces (34) for the pivot (32) of the pedal (28).
REFERENCES:
patent: 2902008 (1959-09-01), Price et al.
patent: 4350077 (1982-09-01), Takeuchi
patent: 4441596 (1984-04-01), Nakahara et al.
patent: 4469008 (1984-09-01), Seki
patent: 4917000 (1990-04-01), Fecher
patent: 5027693 (1991-07-01), Wilkinson
Castel Philippe
Moinard Patrice
Bendix Europe Services Techniques
Decker Ken C.
Look Edward K.
Nguyen Hoang
Palguta Larry J.
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