Brake booster apparatus for a vehicle

Details Brake booster apparatus for a vehicle Brake booster apparatus for a vehicle

1997-07-25

1999-01-12

Nguyen, Hoang

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, F15B 910

Patent

active

058573992

ABSTRACT:
A brake booster apparatus for a vehicle has a constant pressure chamber, a variable pressure chamber, a control valve, a power piston, a plunger member and a solenoid coil. The plunger member is actuated under the energized condition of the solenoid coil. The power piston is actuated in response to the depression of a brake pedal and/or plunger movement. The output force of the brake booster is amplified by the pressure difference between the variable and constant pressure chambers. A clearance is provided between the input member and the plunger member to permit relative movement of the input member and the plunger member. The relative movement generates a continuous variable output force of the brake booster.

REFERENCES:
patent: 5096267 (1992-03-01), Volz
patent: 5172964 (1992-12-01), Levrai et al.
patent: 5437217 (1995-08-01), Castel et al.
patent: 5605088 (1997-02-01), Balz et al.
patent: 5609087 (1997-03-01), Horikoshi
patent: 5704269 (1998-01-01), Satoh
patent: 5711202 (1998-01-01), Tsubouchi

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