Shift modulating control accumulator

Details Shift modulating control accumulator Shift modulating control accumulator

1977-01-28

1978-09-05

Coan, James F.

192 clutches and power-stop control

Vortex-flow drive and clutch

With additional drive or clutch

192 333, 192109F, F16D 3900

Patent

active

041112873

ABSTRACT:
A hydraulic transmission control circuit for modulating the controls of a loader includes an accumulator connected to the reverse speed clutch. The accumulator, which has a free sliding piston, has one end communicating with the reverse speed clutch, while the other end of the accumulator has an inlet communicating with the discharge port of a torque converter for charging the accumulator and an outlet communicating with a fluid reservoir through a check valve. A directional control valve may be utilized to selectively connect the accumulator with the reverse speed clutch or a forward speed clutch for respective loader or bulldozer applications.

REFERENCES:
patent: 3224537 (1965-12-01), Hilpert
patent: 3348644 (1967-10-01), Hilpert
patent: 3621955 (1971-11-01), Black et al.
patent: 3820417 (1974-06-01), Allen et al.
patent: 3822770 (1974-07-01), Golan
patent: 3991865 (1976-11-01), Komatsu

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