Motor vehicles – Power – Including traction motor of kind driven by noncompressible...
Patent
1983-01-03
1984-11-27
Peters, Jr., Joseph F.
Motor vehicles
Power
Including traction motor of kind driven by noncompressible...
60431, 180305, B60K 1710
Patent
active
044846550
ABSTRACT:
A gearless transmission providing pressurized hydraulic fluid to torque motors for driving a vehicle. A hydraulic pump is driven by a turbine engine shaft to provide fluid to accumulators and then to the transmission device. Fluid is selectively admitted into the transmission by the vehicle accelerator pedal. Thereafter the fluid flow may be restricted through fluid circuitry having orifices which provide variable torque output. The circuitry is controlled by a shifter selector with pilot lines to actuate fluid control valves between two control positions. Especially important for turbine-powered vehicles, the transmission provides a braking function when the accelerator pedal is released in either the low or second control range of operation. Means for providing a reverse mode of operation is also disclosed.
A hydraulic differential is also provided and is controlled by the steering mechanism to restrict flow to one of the torque motors during a turn, while increasing the flow to the other wheel a corresponding amount.
A hydraulic positive traction device is also provided and substantially reduces flow to a torque motor when a wheel is spinning such as in snow or loose gravel.
A hydraulic pilot line valve is also provided to direct pressurized fluid for movement of spool valves in a hydraulic circuit line.
REFERENCES:
patent: 1358974 (1920-11-01), Mowbray
patent: 3173259 (1965-03-01), Harbridge
patent: 3207254 (1965-09-01), DeVenel
patent: 3305038 (1967-02-01), Carter
patent: 4076094 (1978-02-01), Moody et al.
patent: 4121418 (1978-10-01), Kronogard
patent: 4132283 (1979-01-01), McCurry
Thoms, W., "A Car That Can Store Power", Mechanix Illustrated, Nov. 1977, p. 60.
McGiehan Donn
Peters Jr. Joseph F.
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