Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1988-09-01
1990-06-05
Diehl, Dwight G.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
B60K 4104
Patent
active
049303767
ABSTRACT:
A system for pressurizing a friction element of an automatic transmission supplied concurrently from two hydraulic passages through a shuttle valve where the two sources of supply pressure are combined. A control valve proeduces regulated output pressure by balancing control feedback pressure against a spring force without venting any portion of the system. The shuttle valve includes a shuttle ball for sealing ports connected to both supply sources and maintains an open connection between the direct clutch and a pocket in which the shuttle ball is retained. AN accumulator includes a plunger separating first and second volumes. One volume expands as hydraulic fluid at regulated output pressure exits the control valve. The volume expands at a regulated time rate controlled by the magnitude of TVLM control pressure, a compression spring force and the flow rate through an orifice of predetermined size.
REFERENCES:
patent: 3340895 (1967-09-01), Osgood, Jr. et al.
patent: 3393585 (1968-07-01), Pierce
patent: 3541885 (1970-11-01), Burcz
patent: 3583422 (1971-06-01), Dach et al.
patent: 3593599 (1971-07-01), Dach
patent: 3613484 (1971-10-01), Pierce et al.
patent: 3706240 (1972-12-01), Borneman et al.
patent: 3714836 (1973-02-01), Pierce et al.
patent: 3820417 (1974-06-01), Allen et al.
patent: 3871250 (1975-03-01), Miyauchi et al.
patent: 4005620 (1977-02-01), Dach et al.
patent: 4145937 (1979-03-01), Shindo et al.
patent: 4227597 (1980-10-01), Gierer
patent: 4265346 (1981-05-01), Emmadi
patent: 4418587 (1983-12-01), Kauffman
patent: 4462280 (1984-07-01), Sugano et al.
patent: 4756213 (1988-07-01), Mainquist et al.
U.S. Ser. No. 24,500 filed Mar. 11, 1987.
U.S. Ser. No. 927,624 filed Nov. 6, 1984.
Campbell Chris
Diehl Dwight G.
Ford Motor Company
Harrington Donald J.
McKenzie Frank G.
LandOfFree
Minimizing delay in low temperature engagement of automatic tran does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Minimizing delay in low temperature engagement of automatic tran, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Minimizing delay in low temperature engagement of automatic tran will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-484611