Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-08-03
1992-02-11
Braun, Leslie A.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74868, 474 28, F16H 1102
Patent
active
050866710
ABSTRACT:
A hybrid transmission includes a gearing mechanism and a V-belt type continuously variable transmission mechanism, a shift command valve, a shift control valve, and a high clutch. The continuously variable transmission mechanism has a driver pulley connected to receive a hydraulic fluid pressure generated by the shift control valve. A neutral valve is fluidly disposed between the high clutch and the shift control valve and has a drain port. The neutral valve takes a predetermined position upon the shift command valve assuming an overstroke range position to drain the high clutch via the drain port thereof, causing the high clutch to be released quickly. The shift command valve assumes the overstroke range position upon kickdown operation, for example. Thus, improved kickdown operation is provided owing to the quick release of the high clutch.
REFERENCES:
patent: 4579021 (1986-04-01), Yamamuro
patent: 4735113 (1988-04-01), Yamamuro et al.
patent: 4751859 (1988-06-01), Itoh et al.
patent: 4895552 (1990-01-01), Abo et al.
patent: 4904229 (1990-02-01), Hattori
patent: 4907471 (1990-03-01), Ishimaru
Braun Leslie A.
Nissan Motor Co,. Ltd.
Stavish Matthew
LandOfFree
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