Engine exhaust valve cooling

Details Engine exhaust valve cooling Engine exhaust valve cooling

1976-02-25

1977-07-05

Dority, Jr., Carroll B.

Internal-combustion engines

Cooling

Valve seats or guides

123 4177, 123188S, F01P 312

Patent

active

040333035

ABSTRACT:
A cylinder head having an exhaust valve port comprising a throat defined by a wall of substantially circular cross section and a bevelled valve seat circumscribing the wall. The bevelled valve seat has an axially extending annular portion adapted to be engaged by a valve head to close the port, the bevelled valve seat extending axially outwardly from the axis of the throat at an angle to the wall. The improvement comprises the application of a small wall diverter within the exhaust port to force separation of the high temperature exhaust gas stream from the exhaust valve seat when the valve is open.

REFERENCES:
patent: 1512952 (1924-10-01), Secor
patent: 1873119 (1932-08-01), Griswold
patent: 1960709 (1934-05-01), Olenick
patent: 2074859 (1937-03-01), Rich
patent: 2691969 (1954-10-01), Stevens
patent: 2853061 (1958-09-01), Elsbett
patent: 3127880 (1964-04-01), Meurer
patent: 3285235 (1966-11-01), Ueberschaer
patent: 3385053 (1968-05-01), Honda
patent: 3653368 (1972-04-01), Scherenberg
patent: 3693606 (1972-09-01), Hardenberg

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