Cylinder head construction

Details Cylinder head construction Cylinder head construction

1979-01-19

1980-09-30

Myhre, Charles J.

Internal-combustion engines

Combustion chamber

123188M, F02B 2308, F02F 142

Patent

active

042249180

ABSTRACT:
Cylinder head construction defining a hemispheric combustion chamber which includes a guide wall provided to impart swirl to the incoming air-fuel mixture. The guide wall facing the intake port defined by the cylinder head construction and generally parallel to the line of action of an intake valve provided in the intake port has a height greater than the maximum lift of the intake valve, and decreases in width in the direction of opening of the intake valve. In addition, the size of the area and the position of the guide wall relative to the intake port and the intake valve are maintained in specific ranges, and thus the construction not only permits efficient ignition of a lean air-fuel mixture, but at the same time causes only a slight drop in engine performance.

REFERENCES:
patent: 2472117 (1949-06-01), McGowen
patent: 2622579 (1952-12-01), Weslake
patent: 2737170 (1956-03-01), McDuffie
patent: 2800123 (1957-07-01), Fisher
patent: 3192912 (1965-07-01), Stumpfig
patent: 3766900 (1973-10-01), Aiti

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