Control of fluid pressure in a torque converter of an...

Details Control of fluid pressure in a torque converter of an... Control of fluid pressure in a torque converter of an...

2007-11-29

2010-11-09

Bonck, Rodney H (Department: 3655)

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

C192S085630

Reexamination Certificate

active

07828128

ABSTRACT:
A system for controlling hydraulic fluid supplied to a torque converter of an transmission includes a torque converter including a chamber containing an impeller and a turbine, and a bypass clutch having a variable torque capacity, a source of variable control pressure, a latch valve changes in response to the variable control pressure alternately between an unlatched state, wherein the latch valve produces a low pressure output, and a latched state, wherein the latch valve produces a high pressure output, a first valve for limiting hydraulic pressure in the chamber alternately at two magnitudes of pressure in response to the low pressure output and the high pressure output, and a second valve responsive to the variable control pressure for regulating a magnitude of hydraulic pressure that actuates the bypass clutch and changes the torque capacity of the clutch.

REFERENCES:
patent: 3592083 (1971-07-01), Kawabata et al.
patent: 4565267 (1986-01-01), Nishikawa et al.
patent: 4597482 (1986-07-01), Sakurai et al.
patent: 4660690 (1987-04-01), Nishikawa et al.
patent: 4693347 (1987-09-01), Nishikawa et al.
patent: 4700819 (1987-10-01), Nishikawa et al.
patent: 4729461 (1988-03-01), Nishikawa et al.
patent: 4760761 (1988-08-01), Nishikawa et al.
patent: 4768632 (1988-09-01), Moan
patent: 5113984 (1992-05-01), Benford
patent: 6374973 (2002-04-01), Nobu et al.
patent: 6668978 (2003-12-01), Fessler et al.
patent: 6695111 (2004-02-01), Bai
patent: 6832671 (2004-12-01), Stafford
patent: 6848548 (2005-02-01), Alfredsson
patent: 7104273 (2006-09-01), Stafford
patent: 2001/0019984 (2001-09-01), Nakano et al.
patent: 2007/0187205 (2007-08-01), Gierer et al.

Affiliated with

Also associated with

Rating

Control of fluid pressure in a torque converter of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control of fluid pressure in a torque converter of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of fluid pressure in a torque converter of an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4243756