Hydraulic accumulator

Details Hydraulic accumulator Hydraulic accumulator

1989-08-28

1990-09-04

Rivell, John

Fluid handling

Systems

With pump

60413, 138 31, F16L 5504

Patent

active

049535919

ABSTRACT:
A hydraulic accumulator for vehicle transmission includes a valve body incorporated into the transmission casing, a piston disposed in a space provided in the valve body and dividing the space into first and second pressure chambers and a cylindrical sleeve member for closing the space. The sleeve member includes a cylindrical portion formed integral with a cover portion for slidable engagement with the piston. The thickness of the cylindrical portion is variable and permits the changing of the effective area difference between the opposite sides of the piston so that desired pressure characteristics can be obtained.

REFERENCES:
patent: 3208219 (1965-09-01), Williamson
patent: 3946760 (1976-03-01), Murakami et al.
patent: 3985063 (1976-10-01), Lemon
patent: 4138846 (1979-02-01), Sakakibara
patent: 4351357 (1982-09-01), Orme
patent: 4685491 (1987-08-01), Fulmer et al.
patent: 4748809 (1988-06-01), Sumiya et al.
patent: 4769990 (1988-09-01), Bach et al.

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