Hydraulic braking pressure generating apparatus for vehicles

Details Hydraulic braking pressure generating apparatus for vehicles Hydraulic braking pressure generating apparatus for vehicles

2007-01-09

2007-01-09

Williams, Thomas (Department: 3683)

Brakes

Operators

Fluid pressure

C060S562000

Reexamination Certificate

active

10989342

ABSTRACT:
A pressure generating apparatus includes a first piston moved in response to operation of a brake pedal, an elastic member for providing a stroke of the first piston in response to braking operation force of the brake pedal, a second piston accommodated in a housing for defining a master chamber in front of it and a simulator chamber behind it, and an atmospheric pressure reservoir for storing brake fluid. A changeover device is provided for selectively communicating the simulator chamber with the reservoir, or blocking the communication between them. And, a stroke restriction device is provided for restricting a maximal stroke of the first piston relative to the housing to be smaller than the sum of a maximal stroke of the second piston relative to the housing and a maximal stroke of the first piston relative to the second piston.

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patent: 6789857 (2004-09-01), Kusano
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patent: 102004025638 (2005-09-01), None
patent: 11-59349 (1999-03-01), None
patent: 2001-526150 (2001-12-01), None
patent: WO 200172567 (2001-10-01), None

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