Four-cycle engine

Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Air or combustible mixture entering the combustion chamber...

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123 9027, 123315, F02M 3510

Patent

active

RE0337870

ABSTRACT:
Several embodiments of cylinder head and valve train configurations for an overhead valve internal combustion engine that permits increased valve area without interference and while maintaining simplified valve actuation. In each embodiment one pair of valves is operated by one cam shaft and lies on one side of a plane containing the axis of the cylinder. Three other valves are positioned primarily on the other side of the plane and reciprocate about axes that are not parallel with each other. These axes, however, intersect so that each of these three valves may be operated by the same cam shaft. In one embodiment of the invention the intersection of the valves axis is coincident with the axis of rotation of the respective cam shaft so as to permit direct actuation of the valves. In another embodiment the intersection lies substantially along a plane that intersects the stems of the valves when they are closed to facilitate operation of multiple valves from a single cam lobe by means of a single rocker arm.

REFERENCES:
patent: 1427190 (1922-08-01), Brown
patent: 1484376 (1924-02-01), Lanzerotti-Spina
patent: 2054928 (1936-09-01), Church
patent: 2144561 (1939-01-01), Buchi
patent: 3211137 (1965-10-01), Love
patent: 4319548 (1982-03-01), Kruger
MTZ,41, Manfred Tholl, "EIN 16-Ventilmotor von Opel", 10-1980, pp. 427 to 434.
Sport, 8/1988, "Weltrekorde, Audi 200 Turbo Quattro", pp. 312 & 313.
MTZ, 38, 1-1977, p. 363.
Nowitzki, Hans, "Only Valve in Head", Motorrad, 11/1980, pp. 155-156.

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