Control elements for gearbox ratio selectors in heavy vehicles

Details Control elements for gearbox ratio selectors in heavy vehicles Control elements for gearbox ratio selectors in heavy vehicles

1980-09-29

1982-11-16

Hershkovitz, Abraham

Motors: expansible chamber type

Extension of unit having separately controlled working...

Vane

91217, 91529, 92117A, 192 362, F15B 1118

Patent

active

043589880

ABSTRACT:
A control element is provided for a gearbox ratio selector in a heavy vehicle of the type in which the gearbox ratio selector is operated by means of a pair of pneumatic cylinders having opposite rods and chambers controlled from the handle of the gearshift lever. The pneumatic cylinders are controlled through an intermediate device between the cylinders and the distributor valve included in the handle of the gearshift lever, so that the activating fluid of the cylinders is independent of the fluid in the handle of the gearshift lever. The distributor valves are connected to control valves advantageously incorporated in the intermediate body provided between the parts opposite to the outlet of the rods in the operating cylinders of the selector.

REFERENCES:
patent: 2928246 (1960-03-01), Sjodin
patent: 3411410 (1968-11-01), Westbury
patent: 3589242 (1971-06-01), Peterson
patent: 3856123 (1974-12-01), Kinsey
patent: 4017110 (1977-04-01), Pease

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