Cooled engine valve

Details Cooled engine valve Cooled engine valve

1977-11-23

1979-10-02

Myhre, Charles J.

Fluid handling

With heating or cooling of the system

Circulating fluid in heat exchange relationship

123 4134, 123 4141, 123188AA, 123188GC, F01P 314, F16K 4900, F01L 314, F01L 318

Patent

active

041694880

ABSTRACT:
An engine valve, reciprocally mounted in an engine, comprises a hollow stem having a head secured thereon and an annular face defined on the head adapted to engage an annular seat defined on an insert secured in the engine. A first tube is disposed in the stem to define a first passage therethrough and a fluted second tube is disposed between the stem and the first tube to define a plurality of second passages therethrough. A lower end of the first tube is open whereas a lower end of the second tube is closed by a cap whereby a coolant, such as oil, may be circulated through the first and second passages. A plurality of third passages are defined between the second tube and the stem to communicate with a chamber defined in the head of the valve, adapted to contain a vaporizable liquid coolant, such as water, therein. The insert has an annular passage defined therearound for circulating water about the seat and face for cooling purposes.

REFERENCES:
patent: 1068830 (1913-07-01), Westaway
patent: 1353542 (1920-09-01), Scharnagel
patent: 1594285 (1926-07-01), Watts
patent: 2411734 (1946-11-01), Kerwin et al.

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