Booster for brake or clutch

Details Booster for brake or clutch Booster for brake or clutch

1993-06-22

1994-08-16

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

F15B 910

Patent

active

053376501

ABSTRACT:
An improvement of a constant pressure passage formed within a valve body of a brake booster is disclosed. A notch of a given size is formed in the internal peripheral surface of the valve body at a location rearward of the rear end of the constant pressure passage. The provision of the notch allows the diameter of a reaction disc to be increased over the prior art by an amount corresponding to the depth of the notch, thus allowing the durability of the reaction disc to be improved.

REFERENCES:
patent: 3628422 (1971-12-01), Acre
patent: 4747336 (1988-05-01), Uyama
patent: 4759255 (1988-07-01), Shimamura
patent: 4784038 (1988-11-01), Gautier
patent: 4862787 (1989-09-01), Suzuki et al.
patent: 5027695 (1991-07-01), Inoue et al.
patent: 5046398 (1991-09-01), Hamamiya et al.
patent: 5062348 (1991-11-01), Gotoh et al.
patent: 5083495 (1992-01-01), Satoh
patent: 5111734 (1992-05-01), Suzuki
patent: 5121673 (1992-06-01), Araki
patent: 5121674 (1992-06-01), Uyama
patent: 5146837 (1992-09-01), Inoue
patent: 5158006 (1992-10-01), Gotoh et al.
patent: 5170628 (1992-12-01), Satoh et al.

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