Vehicle braking device

Details Vehicle braking device Vehicle braking device

2007-11-13

2007-11-13

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

C060S547100

Reexamination Certificate

active

11392936

ABSTRACT:
There is provided a vehicle braking device in which a front outer periphery of a backup piston that can directly press a master piston from behind when output fluid pressure from a fluid pressure generation source is reduced is fluid-tightly and slidably fitted to a short cylindrical separator, a sleeve forming an annular channel between itself and an outer periphery of the backup piston is placed backward of the separator, and annular seal members for sealing front and rear sides of the annular passage are mounted between the separator and the backup piston, and between the sleeve and the backup piston. The seal member for sealing a front side of the annular passage is mounted to an inner periphery of the separator so as to come into repulsive contact with the outer periphery of the backup piston. The seal member for sealing a rear side of the annular passage is mounted to the outer periphery of the backup piston so as to come into repulsive contact with an inner periphery of the sleeve. Thus, it is possible to reduce an axial size of the vehicle braking device.

REFERENCES:
patent: 6513327 (2003-02-01), Nishii et al.
patent: 7083240 (2006-08-01), Matsuno et al.
patent: 7093435 (2006-08-01), Matsuno et al.
patent: 7104058 (2006-09-01), Matsuno et al.
patent: 4-283157 (1992-10-01), None

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