Camshaft mounting mechanism for DOHC engine of motorcyle

Details Camshaft mounting mechanism for DOHC engine of motorcyle Camshaft mounting mechanism for DOHC engine of motorcyle

1984-05-16

1986-12-30

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123432, F01L 102

Patent

active

046320733

ABSTRACT:
Two embodiments of overhead camshaft internal combustion engines that provide a compact arrangement through a simplified bearing and thrust arrangement for the camshafts. In accordance with each embodiment, one of the lobes of the camshafts are positioned at the ends of the camshafts and the camshafts are axially located by thrust surfaces formed between pairs of lobes. In one embodiment of the invention, the camshaft operates three valves per cylinder. In this embodiment, the fastening means for affixing the cylinder head to the cylinder block lies beneath the camshafts and the camshafts have openings so that the fastening means may be tightened without necessitating removal of the camshafts.

REFERENCES:
patent: 1398651 (1921-11-01), Rowledge
patent: 2054928 (1936-09-01), Church
patent: 3289658 (1966-12-01), Surovek
patent: 3388614 (1968-06-01), Castelet
patent: 3673990 (1972-07-01), Alfieri
patent: 4256068 (1981-03-01), Irimajiri et al.
patent: 4430968 (1984-02-01), Futakuchi et al.
patent: 4495903 (1985-01-01), Asano

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