Support structure for cam shafts

Details Support structure for cam shafts Support structure for cam shafts

1992-09-21

1993-05-25

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123 9034, 1231935, 123196M, F01L 104

Patent

active

052130711

ABSTRACT:
The support structure for cam shafts including an intake cam shaft and an exhaust cam shaft, a pair of intake cams per a cylinder formed side by side on the intake cam shaft, a pair of exhaust cams per a cylinder formed side by side on the exhaust cam shaft and having longer interval therebetween than that of the intake cams, a cam cap forming an upper portion of the support structure for the cam shafts and an upper wall portion of a plug hole for inserting the ignition plug, a cam carrier forming a lower portion of the support structure for the cam shafts and a lower wall portion of the plug hole, and fasteners for fastening the cam cap to an engine block. The fasteners are disposed both at longitudinally opposite sides of the pair of intake cams and between the pair of the exhaust cams.

REFERENCES:
patent: 4497289 (1985-02-01), Bortolussi
patent: 4593657 (1986-06-01), Aoi et al.
patent: 4612885 (1986-09-01), Yoshikawa
patent: 4658769 (1987-04-01), Horio et al.
patent: 4823747 (1989-04-01), Wagner et al.
patent: 4915066 (1990-04-01), Koshimoto et al.
patent: 4991549 (1991-02-01), Sugiura
patent: 5121718 (1992-06-01), Saito
patent: 5143034 (1992-09-01), Hirose

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