Automatic transmission for four wheel drive automotive vehicles

Details Automatic transmission for four wheel drive automotive vehicles Automatic transmission for four wheel drive automotive vehicles

1980-07-24

1984-11-13

Herrmann, Allan D.

Motor vehicles

Having four wheels driven

74864, 74869, 74705, 74 1566, 74 1588, 192 0032, B60K 4102, F16D 4322

Patent

active

044818777

ABSTRACT:
An automatic transmission for a four wheel drive automotive vehicle comprising a torque converter, an automatic transmission connected to a turbine shaft of the torque converter for transmitting the output of the engine to the front-wheel, a fluid operated clutch for transmitting the output to the rear-wheel, and a pressure oil control for operating the automatic transmission. The pressure oil control includes a pressure regulator valve to produce a line pressure according to the operational condition of the engine and a valve for the clutch. The pressure oil control means is so arranged that the line pressure is raised with increase of load of the engine, and the valve is adapted to operate the clutch by the raised line pressure, such that the automatic transmission is automatically changed to the four wheel drive in accordance with the driving condition.

REFERENCES:
patent: 2714936 (1955-08-01), Gregory
patent: 2749772 (1956-06-01), O'Malley
patent: 3433319 (1969-03-01), McLean
patent: 3627072 (1971-12-01), Smirl
patent: 3868869 (1975-03-01), Hunt et al.
patent: 3895542 (1975-07-01), Miyauchi
patent: 3963085 (1976-06-01), Vinton
patent: 3988951 (1976-11-01), Mair et al.
patent: 4138906 (1979-02-01), Nakao et al.
patent: 4236595 (1980-12-01), Beck et al.
patent: 4275608 (1981-06-01), Brancolini

Affiliated with

Also associated with

Rating

Automatic transmission for four wheel drive automotive vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic transmission for four wheel drive automotive vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic transmission for four wheel drive automotive vehicles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2355239