Debris resistant valve assembly

Details Debris resistant valve assembly Debris resistant valve assembly

1990-04-16

1991-08-13

Kamen, Noah P.

Internal-combustion engines

Cooling

Automatic coolant flow control

1375122, 236 92R, 440 88, F01P 714

Patent

active

050387243

ABSTRACT:
An internal combustion engine comprising an engine block defining a cylinder bore and a fluid jacket, an annular valve seat defining a first passageway communicating with the fluid jacket, a valve assembly including a housing having a fluid inlet, a fluid outlet, a second passageway communicating between the inlet and the outlet, a second valve seat located in said second passageway, and a partially spherical outer surface portion moveable into and out of seating engagement with the annular valve seat, a valve member in the housing, and a mechanism for moving the valve member into and out of seating engagement with the second valve seat for respectively closing and opening said second passageway, and a mechanism for biasing the partially spherical outer surface portion into seating engagement with the annular valve seat.

REFERENCES:
patent: 3017113 (1962-01-01), Drapeau
patent: 3402888 (1968-09-01), Kelly
patent: 3640454 (1972-02-01), Freismuth et al.
patent: 3667431 (1972-06-01), Kueny et al.
patent: 4457727 (1984-07-01), Flaig
patent: 4669988 (1987-06-01), Breckenfeld et al.

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