Multi valve engine

Details Multi valve engine Multi valve engine

1994-12-23

1997-11-11

Okonsky, David A.

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123432, F02B 7502

Patent

active

056852657

ABSTRACT:
A unitary cylinder head assembly for a five-valve per cylinder internal combustion engine. The cylinder head assembly has upstanding walls that form tappet receiving bores for receiving the tappets that operate the respective valves. In addition, these walls provide bearing surfaces for a pair of camshafts, one of which actuates one set of valves and the other of which actuates another set of valves. The threaded fastening means for affixing the cylinder head to the cylinder block are disposed axially beyond the walls and in the case of the set containing the greater number of valves transversely outwardly from the walls. However, the threaded fastening means are disposed so that they are equal distance from the associated cylinder bore axis.

REFERENCES:
patent: 4007716 (1977-02-01), Jones
patent: 5018497 (1991-05-01), Tsuchida
patent: 5099812 (1992-03-01), Yamada

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