Vacuum booster for automobiles

Details Vacuum booster for automobiles Vacuum booster for automobiles

1987-01-30

1988-09-13

Nilson, Robert G.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

913692, 1376275, F15B 910

Patent

active

047700823

ABSTRACT:
A vacuum booster comprising a push rod, a housing including a front and rear shells connected with each other, a power piston located in the housing and dividing an interior of the housing into a constant pressure chamber and a variable pressure chamber with a diaphragm, a valve plunger located within the power piston and a control valve member located in the power piston. The power piston has a valve seat contactable with the control valve, and the seat surface of the valve plunger is separable from the control valve member. The seat surface of the valve plunger includes a circular spherical seat surface, and a seal surface of the control valve member contacted with the seat surface includes a concave spherical seat surface which the seat surface of the valve plunger touches internally.

REFERENCES:
patent: 4085656 (1978-04-01), Ando
patent: 4350076 (1982-09-01), Thiel
patent: 4472997 (1984-09-01), Ohmi
patent: 4587885 (1986-05-01), Boehm et al.
patent: 4590845 (1986-05-01), Tateoka et al.
patent: 4594937 (1986-06-01), Meynier et al.
patent: 4598625 (1986-07-01), Belart
patent: 4619185 (1986-10-01), Mori et al.

Affiliated with

Also associated with

Rating

Vacuum booster for automobiles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum booster for automobiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum booster for automobiles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-800251