Sound insulated vehicle drive unit

Details Sound insulated vehicle drive unit Sound insulated vehicle drive unit

1987-10-07

1989-03-14

Nelli, Raymond A.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123195C, F02B 7700

Patent

active

048117005

ABSTRACT:
A drive unit comprising a reciprocating-piston type internal combustion engine and a transmission and output shaft is disclosed in which the sound-generating parts of the internal combustion engine are combined to form one driving mechanism body which is supported via an element which transmits power and isolates structure-borne sound, at the engine casing constructed as a noise capsule. To prevent sound from being radiated from the transmission casing towards the outside and structure-borne sound from being transmitted to the noise capsule, the transmission casing is rigidly connected to the driving mechanism carrier and the noise capsule also encloses the entire transmission casing.

REFERENCES:
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patent: 4203407 (1980-05-01), Fachbach et al.
patent: 4203409 (1980-05-01), Fachbach et al.
patent: 4241202 (1980-12-01), Takeuchi et al.
patent: 4267805 (1981-05-01), Schmuck
patent: 4287861 (1981-09-01), Lattner et al.
patent: 4343271 (1982-08-01), Skatsche et al.
patent: 4455971 (1984-06-01), Kirchweger et al.
patent: 4459944 (1984-07-01), Kirchweger et al.

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