Low-noise level internal combustion engines

Details Low-noise level internal combustion engines Low-noise level internal combustion engines

1978-11-20

1980-01-15

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123195A, 123195C, 181204, F02B 7700

Patent

active

041833449

ABSTRACT:
An internal combustion engine comprises an engine unit support and a crankcase which parts are connected by a resonance-absorbing element. The engine parts located above the resonance-absorbing element are encased by a noise-suppressing encapsulation. The exhaust pipe and the inlet pipe penetrate the encapsulation without touching it and are connected to the cylinderhead by vibration-insulating couplings. Supporting arms are provided which support the exhaust and the inlet pipes. The supporting arms are secured to the crankcase which is freed from body resonance due to the resonance-absorbing element. The supporting arms take over all holding and vibration forces so that the vibration-insulating couplings may be designed very soft in the sense of optimal vibration insulation.

REFERENCES:
patent: 3534828 (1970-10-01), Tuer
patent: 3949727 (1976-04-01), Thien et al.
patent: 4071009 (1978-01-01), Kraina
patent: 4149512 (1979-04-01), Hatz

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