Power transfer unit

Details Power transfer unit Power transfer unit

1978-03-06

1979-09-25

Geoghegan, Edgar W.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Cylinders parallel to rotation axis

60403, 60419, 60455, 417271, F01B 300

Patent

active

041686527

ABSTRACT:
A power transfer unit for transferring power between two separate hydraulic circuits comprising a casing, a pair of cylinder blocks in the casing, cylinders within each cylinder block, a piston in each cylinder, a leakage chamber within the casing, cam means located in said chamber for causing joint reciprocation of the pistons, pistons or extensions thereof extending from the cylinders to the cam means in the chamber, first valve means co-operating with the cylinders of the first block, second valve means co-operating with the cylinders of the second block, first leakage collecting means for the first valve means separate from said chamber, second leakage collecting means for the second valve means separate from said chamber, and a vent for said chamber separate from said leakage collecting means.
By this arrangement any leakage to the chamber may be from either or both circuits and by virtue of the vent may be disposed of rather than fed back to either circuit.

REFERENCES:
patent: 1229009 (1917-06-01), Allison
patent: 2935952 (1960-05-01), Rose
patent: 3369491 (1968-02-01), Hoffer
patent: 3855903 (1974-12-01), Bunyan
patent: 3986436 (1976-10-01), Kaufman et al.

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