Fluid coupling having a vane pump system

Details Fluid coupling having a vane pump system Fluid coupling having a vane pump system

1991-04-24

1993-04-06

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, 123 4112, F16D 3102

Patent

active

051995395

ABSTRACT:
A temperature-controlled fluid coupling for intermittently driving a cooling fan of an internal combustion engine. The coupling comprises a drive input shaft having a rotor thereon, a housing for supporting a cooling fan, a plurality of radial vanes accommodated within the rotor, and a valve member within the housing. The vanes are movable in radial directions within an elliptic chamber in the housing. The rotor and the vanes provide a kind of vane pump system. A temperature sensitive element is disposed outside of the housing and connected to the valve member. The element operates to open and close the valve in response to a change of ambient temperature. The fan rotates to cool the engine only when the temperature goes up to a predetermined level.

REFERENCES:
patent: 3093983 (1963-06-01), Montgomerie
patent: 3211136 (1965-10-01), Burckhardt et al.
patent: 4188785 (1980-02-01), Ando et al.
patent: 4214652 (1980-07-01), Quenneville
patent: 4606445 (1986-08-01), Rockey
patent: 4662495 (1987-05-01), Brunken
patent: 4718378 (1988-01-01), Child
patent: 4913102 (1990-04-01), Ohmura et al.
patent: 4971525 (1990-11-01), Nakayoshi et al.

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