Reaction disc for a brake booster

Details Reaction disc for a brake booster Reaction disc for a brake booster

1993-06-22

1994-09-13

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

92 84, F15B 910

Patent

active

053458559

ABSTRACT:
A reaction disc used in a brake booster, in particular, an improvement of an air vent formed in the outer periphery of the reaction disc is disclosed. The reaction disc is provided with a circumferentially discontinous bulge on its external peripheral surface, and a discontinuity in the bulge provides an air vent passage. A burr is formed on the external peripheral surface of the reaction disc as displaced from the bulge. The bulge has a height which is chosen to be greater than the height of the burr. When a reaction disc thus constructed is fitted into a recess of a push rod, the air vent passage provides a positive venting action for the air trapped in the recess. Accordingly, no deburring operation is required during the manufacture of the reaction disc.

REFERENCES:
patent: 4359869 (1982-11-01), Ideta
patent: 4425760 (1984-01-01), Futura
patent: 4862787 (1989-09-01), Suzuki et al.

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