Camshaft lubricating system for engine

Details Camshaft lubricating system for engine Camshaft lubricating system for engine

1989-12-08

1991-02-12

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Overhead camshaft

123 9034, 123196M, 184 65, F01L 902

Patent

active

049915495

ABSTRACT:
A lubricating arrangement for the overhead camshafts of an internal combustion engine. The cylinder head assembly is formed with wells in which lubricant can accumulate during the running of the engine and which surround at least in part the camshafts. When the engine stops running, the wells will retain lubricant so that the camshaft will be lubricated immediately upon start up. The wells associated with at least one of the camshafts are formed at least in part by the bearing caps that journal the camshafts. One camshaft is supported by a greater number of bearings than the other camshaft and the fastening means associated with the camshaft bearings of the camshaft having the greater number of bearings are smaller than those associated with the other camshaft so as to insure equal torque down.

REFERENCES:
patent: 4343270 (1982-08-01), Kawabe
patent: 4565168 (1986-01-01), Rivere
patent: 4632073 (1986-12-01), Futakuchi
patent: 4660529 (1987-04-01), Yoshikawa
patent: 4681069 (1987-07-01), Honma
patent: 4771745 (1988-09-01), Nakamura et al.
patent: 4777842 (1988-10-01), Yamada

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