Shift device for hydraulic control system for automatic transmis

Details Shift device for hydraulic control system for automatic transmis Shift device for hydraulic control system for automatic transmis

1982-02-24

1984-08-28

Herrmann, Allan D.

Machine element or mechanism

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

Preselected indexed position

74867, 74868, B60K 4108, B60K 4112

Patent

active

044676751

ABSTRACT:
A hydraulic control system comprises first and second shift valves which cooperate with each other to effect a shift between two gear ratios. The first shift valve has a port and two different pressure acting areas which are exposed to pressure from the port depending upon downshift and upshift states of the first shift valve, respectively. The second shift valve effects communication between signal pressure generating means and the port of the first shift valve when the second shift valve is in one of two states to deliver the signal pressure to the port of the first shift valve. A kickdown pressure generating means delivers a kickdown pressure to the first shift valve.

REFERENCES:
patent: 3078736 (1963-02-01), Meads et al.
patent: 3613484 (1969-12-01), Pierce et al.
patent: 4291596 (1981-09-01), Sakakibara
patent: 4325271 (1982-04-01), Iwanaga et al.
patent: 4349088 (1982-09-01), Ito et al.

Affiliated with

Also associated with

Rating

Shift device for hydraulic control system for automatic transmis does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-871568