Temperature-operated fluid friction coupling

Details Temperature-operated fluid friction coupling Temperature-operated fluid friction coupling

1988-12-12

1990-06-05

Kamen, Noah P.

Internal-combustion engines

Cooling

Automatic coolant flow control

192 82T, F16D 4325

Patent

active

049304577

ABSTRACT:
A temperature-operated fluid friction coupling is actuated by a flow of viscous fluid flowing into or out of shearing surface gaps disposed therein. The coupling of the invention includes an additional valve opening penetrating a partition and an additional valve lever mounted on the partition. The additional valve lever is made of a bimetallic element or bidirectional shape memory alloys such that it curves at a considerably low temperature near the standard ambient temperature, allowing the second valve opening to open and close. Thus, the fan idling speed during OFF condition of the coupling can be set considerably low in comparison with conventional designs.

REFERENCES:
patent: 3642105 (1972-02-01), Kikuchi
patent: 4381051 (1981-02-01), Kikuchi
patent: 4446952 (1984-05-01), Masai
patent: 4485902 (1984-12-01), Storz
patent: 4606445 (1986-08-01), Rockey
patent: 4662495 (1987-05-01), Brunken

Affiliated with

Also associated with

Rating

Temperature-operated fluid friction coupling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature-operated fluid friction coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature-operated fluid friction coupling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-485110