Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1984-03-21
1986-07-08
Dorner, Kenneth J.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74752C, 74869, B60K 4116
Patent
active
045986126
ABSTRACT:
In order to prevent excessive pump output drain off and ensure that the hydraulic pressure supplied to a control chamber of a variable capacity pump of a hydraulically controlled automatic automotive transmission control system, is maintained at an appropriate level with respect to the control pressure (line pressure) being utilized in the control system, a pressure limiting valve is disposed between a drain port of a pressure regulating valve and the torque converter which operatively interconnects the prime mover (engine) with transmission. This pressure limiting valve includes a spool which is biased in a direction to reduce the pressure passed therethrough to the torque converter by the pressure prevailing in a feedback chamber which communicates with the conduiting between the valve and the torque converter.
REFERENCES:
patent: 2896468 (1959-07-01), Cheek et al.
patent: 2919597 (1960-01-01), Borman, Jr.
patent: 2926543 (1960-03-01), Holdeman et al.
patent: 2950629 (1960-08-01), Holdeman et al.
patent: 3077122 (1963-02-01), Olsen
patent: 3078736 (1963-02-01), Meads et al.
patent: 3159051 (1964-12-01), Herndon et al.
patent: 3592083 (1971-07-01), Kawabata
patent: 3937108 (1976-02-01), Will
patent: 4301697 (1981-11-01), Iwanaga et al.
"A New Automatic Transmission for Improved Fuel Economy--General Motors THM 125", Erkki A. Koivunen & Philip A. Le Bar, Jr., Society of Automotive Engineers, 1979.
Patent Abstracts of Japan, vol. 4, No. 94, Jul. 8, 1980.
European Search Report.
Dorner Kenneth J.
Nissan Motor Company Limited
Wright Dirk
LandOfFree
Pump control arrangement for automatic automotive transmission o does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pump control arrangement for automatic automotive transmission o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump control arrangement for automatic automotive transmission o will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1445674