Noise reducing cover for an internal combustion engine

Details Noise reducing cover for an internal combustion engine Noise reducing cover for an internal combustion engine

1983-07-25

1985-06-11

Cross, E. Rollins

Internal-combustion engines

Frame construction

Horizontal cylinder

123198E, 181204, F02F 700

Patent

active

045221650

ABSTRACT:
A noise reducing cover for use with an internal combustion engine, taking the form of a cylinder head cover, an oil pan, a valley cover, a valve lifter cover or the like, is constructed of a main body portion of a resilient porous material, and an inner skin layer of a resilient non-porous material, securely connected to the inside of the main body portion. The noise reducing cover excludes a hard layer made of metal or hard plastic, thereby suppressing vibration of the noise reducing cover itself even when engine vibration is transmitted thereto.

REFERENCES:
patent: 4048366 (1977-09-01), Kingsbury

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