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US 10,294,938 B2Granted
Scroll compressor with movable non-orbiting scroll
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYusuke Imai, Sadayuki Yamada, Atsushi Sakuda, Akihiro Hayashi, Takashi Morimoto
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Abstract
An elastic body is provided which biases one of a fixed scroll and an orbiting scroll in a direction in which the fixed scroll and the orbiting scroll are spaced away from each other. With this, upon the start-up of a compressor, a gap is formed between the fixed scroll and the orbiting scroll, and thus the startability is improved.
Claims8
A scroll compressor, comprising:
- a partition plate that divides an inside of a hermetic container into a high-pressure space and a low-pressure space;
- a non-orbiting scroll provided in the low-pressure space and positioned adjacent to the partition plate;
- an orbiting scroll that engages the non-orbiting scroll and defines a compression chamber that is formed between the orbiting scroll and the non-orbiting scroll;
- a rotating shaft that causes the orbiting scroll to orbit;
- a main bearing that supports the orbiting scroll;
- a columnar member that is inserted to make a receiver of the non-orbiting scroll movable and is supported by the main bearing;
- and
- an elastic body that is provided between the main bearing and the non-orbiting scroll and biases the non-orbiting scroll away from the orbiting scroll,
- wherein the non-orbiting scroll biased by the elastic body is movable between the partition plate and the main bearing in an axial direction of the rotating shaft,
- the non-orbiting scroll includes a first end plate and a first spiral body that stands on the first end plate,
- the orbiting scroll includes a second end plate and a second spiral body that stands on the second end plate and engages the first spiral body, and
- a ratio of a gap between an end of the first spiral body and the second end plate to a height of the second spiral body is at least 0.005 and less than 0.1 when the scroll compressor is not in operation.
9 more elements
Dependencies are inferred from the claim text.