Multi-valve engine

Details Multi-valve engine Multi-valve engine

1994-09-30

1996-09-10

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Pneumatic system

123 9027, 123 9065, 1231933, F01L 124, F01L 902, F02B 100

Patent

active

055535720

ABSTRACT:
An improved air spring arrangement for an internal combustion engine having three valves per cylinder which are disposed in surrounding relationship to a spark plug. The air spring arrangement is formed by a recess formed in the cylinder head that encompasses each of the valve stems and an insert piece that is inserted into this recess and which defines the bores for the respective air chambers. The supply and relief passages for the air chambers are formed in the insert piece by drilled passages which have a V-shaped configuration to provide a more compact assembly and a less complicated cylinder head arrangement.

REFERENCES:
patent: 3120221 (1964-02-01), Lyons
patent: 4592313 (1986-06-01), Speckhart
patent: 4915065 (1990-04-01), Yamada
patent: 5058541 (1991-10-01), Shibata et al.
patent: 5233950 (1993-08-01), Umemoto et al.
Patent Abstracts of Japan, vol. 14 No. 545 (M-1054) 4 Dec. 1990 & JP-A-02 230909 (Honda Motor Co Ltd) 13 Sep. 1990.

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