Hydraulic control device for automatic transmission for vehicle

Details Hydraulic control device for automatic transmission for vehicle Hydraulic control device for automatic transmission for vehicle

1989-08-02

1991-01-08

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74868, B60K 4122, B60K 4124, F16H 5970

Patent

active

049826247

ABSTRACT:
For an automatic transmission for a vehicle such as an automobile having a first friction engaging means such as a clutch which is switched over between engagement and disengagement between two adjacent speed stages such as the third speed stage and the fourth speed stage and a second friction engaging mechanism such as a brake which is engaged at two spaced apart jumping apart speed stages such as the fourth speed stage under D range and the second speed stage under S range, a hydraulic control device switches over such two friction engaging means by a first shift valve for three speed stages such as the fourth, third and second speed stages with a help of second shift valve for switching over the second speed stage and the third speed stage. A drain port of the first shift valve is supplied with a hydraulic pressure from an S port of a manual shift valve through the second shift valve.

REFERENCES:
patent: 3896685 (1975-07-01), Shellman
patent: 4106369 (1978-07-01), Taga
patent: 4719822 (1988-01-01), Monsawa
patent: 4843920 (1989-07-01), Hayasales et al.

Affiliated with

Also associated with

Rating

Hydraulic control device for automatic transmission for vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic control device for automatic transmission for vehicle , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic control device for automatic transmission for vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-927374