Hydraulic motor swash plate angle shifter

Details Hydraulic motor swash plate angle shifter Hydraulic motor swash plate angle shifter

1995-03-01

1996-06-04

Nguyen, Hoang

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

91505, 74481, 60327, F16D 3900

Patent

active

055222137

ABSTRACT:
A speed control shifter is provided for use with an hydraulic automotive drive train. The shifter is intended for co-axial mounting on an existing variable speed reciprocating hydraulic pump swash plate angle control shaft. It employs a pair of input plates each intermittently connected to an output plate rigidly connected to the shaft. One input plate is connected to a speed selector handle, the other input plate is linked to an accelerator cable. When starting from neutral activation of one solenoid causes the position of the output plate, and hence the swash plate, to be controlled by motion of the accelerator cable. This allows the automobile to move away from a stopped position as the engine accelerates from idle. Once a first chosen speed range is reached a second solenoid is activated to link the motion of the output plate to the position of the speed selector, and the first solenoid is de-activated to permit normal increases and decreases in speed within the chosen speed range.

REFERENCES:
patent: 3129604 (1964-04-01), Hanson
patent: 3316773 (1967-05-01), Findlay
patent: 3508454 (1970-04-01), Fanslow et al.
patent: 3511105 (1970-05-01), Matter
patent: 4217789 (1980-08-01), Larson
patent: 4553626 (1985-11-01), Kazmierczak
patent: 5105689 (1992-04-01), Korsmeyer

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