Gas saving transmission

Details Gas saving transmission Gas saving transmission

1979-02-02

1981-09-29

Hunter, H. Hampton

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, 74856, 74645, B60K 4116

Patent

active

042915953

ABSTRACT:
A control system for an automatic transmission for vehicles which eliminates the torque convertor and incorporates a flow proportioning valve arrangement to proportion the flow of pressure fluid from the pressure source between sump and the drive condition determining servos in accordance with the manifold vacuum pressure of the vehicle engine, the flow to the servos increasing as manifold vacuum pressure decreases. The arrangement is operative to disconnect the transmission output from the vehicle engine when there is insufficient engine torque to match the load imposed on the system. The flow proportioning valve is responsive to engine manifold vacuum pressure and governor fluid pressure which is proportional to the speed of the vehicle.

REFERENCES:
patent: 2761328 (1956-09-01), Herndow et al.
patent: 2763162 (1956-09-01), Herndow
patent: 3688606 (1972-09-01), Lemieux et al.
patent: 3699994 (1972-10-01), Mohri
patent: 4023442 (1977-05-01), Woods et al.

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