Scroll compressor

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll

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Details

418 551, 418 91, 418142, F01C 102

Patent

active

061235296

ABSTRACT:
A double scroll compressor including an orbiting scroll having spiral wraps formed on both sides of an end plate includes two stationary scrolls, each having a wrap formed thereon to mesh with the corresponding one of the spirals to form a compressing flow passage. The power of a driver, such as a motor, is transmitted via pulleys to two crank shafts which are disposed to extend through the end plate of the orbiting scroll approximately symmetrically with respect to the end plate. The two crank shafts are synchronously rotationally driven by a timing belt disposed between the pulleys. While the crank shafts are making their rotary motions, the orbiting scroll makes its eccentric circular motion and a sucked gas is compressed between the orbiting scroll and the stationary scrolls. A multiplicity of cooling flow passages approximately perpendicular to a line which connects the axes of the crank shafts are formed to extend through the central portion of the end plate of the orbiting scroll. The heat generated in the meshed portion between the orbiting scroll and the stationary scrolls is carried to the outside of the compressor by cooling air which flows through the cooling through-passages.

REFERENCES:
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patent: 5258046 (1993-11-01), Haga et al.
patent: 5690480 (1997-11-01), Suzuki et al.
patent: 5755564 (1998-05-01), Machida et al.
patent: 5803723 (1998-09-01), Suefuji et al.
patent: 5842843 (1998-12-01), Haga

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