Dual flow control for hydraulic clutch

Details Dual flow control for hydraulic clutch Dual flow control for hydraulic clutch

1994-12-01

1996-05-21

Pitts, Andrea L.

192 clutches and power-stop control

Elements

Lubricating, insulating, or cooling

19211331, 192 7012, F16D 1374

Patent

active

055180981

ABSTRACT:
A hydraulic circuit for lubricating a tractor transmission and associated master clutch is disclosed wherein a high cooling flow of lubrication oil is delivered to the master clutch whenever the clutch is being modulated, but a normal lower oil flow is delivered to the clutch whenever the clutch is either disengaged or fully engaged. The hydraulic circuit includes a clutch lubrication control spool operatively associated with a pilot line sensing pressure from the hydraulic system controlling the application of the master clutch and a transmission brake that is engaged to stop the transmission when the master clutch is disengaged. The pilot line controls the positioning of the clutch lubrication control spool to shift the spool to a high flow position whenever less than full pressure is sensed in either the clutch applied or brake applied hydraulic lines.

REFERENCES:
patent: 3105582 (1963-10-01), Ziabicki
patent: 3995727 (1976-12-01), Ivey
patent: 4004670 (1977-01-01), Nerstad et al.
patent: 4029189 (1977-06-01), Freiburger
patent: 4134483 (1979-01-01), Horsch
patent: 4157750 (1979-06-01), Horsch
patent: 4557363 (1985-12-01), Golan
patent: 4753332 (1988-06-01), Bieber et al.
patent: 4856628 (1989-08-01), Momiyama
patent: 4860873 (1989-08-01), Inagaki et al.

Affiliated with

Also associated with

Rating

Dual flow control for hydraulic clutch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual flow control for hydraulic clutch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual flow control for hydraulic clutch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2032184