Synchronized control of gearbox by an electronic calculator

Details Synchronized control of gearbox by an electronic calculator Synchronized control of gearbox by an electronic calculator

1987-08-17

1989-07-11

Garrett, Robert E.

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

92 73, 92147, 74335, F01B 704

Patent

active

048460508

ABSTRACT:
A device designed to actuate the positive clutches of gearbox sliding gears following synchronization of the respective pairs of gears. A cylinder mechanism is provided on each sliding plate of the gearbox, as well as solenoid valves which are controlled by an electronic calculator to select and actuate the cylinders. Each cylinder mechanism includes two oppositely acting pistons, each connected to the sliding plate, and each sliding in its own cylinder which also includes a return spring which operates against each piston and which practically eliminates the clearance above the piston as the piston is about to be actuated.

REFERENCES:
patent: 1580249 (1926-04-01), Hornor
patent: 2619943 (1952-12-01), Monleone
patent: 2815901 (1957-12-01), Hale
patent: 3148595 (1964-09-01), Looney
patent: 3150489 (1964-09-01), Dewar
patent: 3253518 (1966-05-01), Duemler
patent: 3447423 (1969-06-01), Henry
patent: 4392631 (1983-07-01), De Wald

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