Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1977-02-07
1978-05-09
Scott, Samuel
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
F16H 5710
Patent
active
040880443
ABSTRACT:
A manually controlled semi-automatic, multiple-step, internal gear driven transmission characterized by a hydraulic activation system of compensating fluid pressure versus spring compression resistance forces including a forward section having an integrated dual clutch and pinion carrier, driven by an engine shaft, a gear-type oil pump driven by helical gears supplying the servo-system, a rear section pinion carrier, related die cast pinion gear clusters, annulus gears and an interconnecting middle section dual-annulus gear. The gear ratio changes are effected by annulus fluid-combination spring power cylinder brake control and fluid actuated clutches capable of causing the transmission of torque to a load shaft directly through a main shaft, through the rear pinion carrier or through the dual annulus, whereby the least reduction is obtained when all elements are in operation. The invention is further characterized by a variable pressure regulator, governing actuating fluid pressure at idling speeds, and a differential-piston pressure regulator, governing main line fluid pressure at all speeds, to a directory rotary distributor valve feeding said power cylinders and clutches as directed by a manual straight line shifting arrangement, said regulators having a compensating fluid pressure versus spring compression design.
REFERENCES:
patent: 3033333 (1962-05-01), Breting et al.
patent: 3313179 (1967-04-01), Flinn
Cannon James J.
Cannon, Jr. James J.
McKenzie, Jr. Frank H.
Scott Samuel
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