Title:
INJECTION CONTROL METHOD IN REFRIGERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/181245
Kind Code:
A1
Abstract:
Provided is an injection control method with which it is possible to simultaneously achieve an improvement in coefficient of performance (COP) and a back pressure load/compression reactive force balance of a scroll compressor in a refrigerating device. The control method is applied to a refrigerating device including a scroll compressor, an injection control apparatus, and a control device. The scroll compressor is provided with an orbiting scroll and a fixed scroll. A compression chamber is formed between the orbiting scroll and the fixed scroll. A back pressure chamber is formed on the side opposite to the compression chamber of the orbiting scroll. The orbiting scroll is configured to receive a back pressure load by the action of the pressure of a refrigerant gas introduced into the back pressure chamber. A region in which the back pressure load exceeds a first predetermined value constitutes a first injection essential region.
Inventors:
YAMASAKI HARUHISA (JP)
Application Number:
PCT/JP2019/004028
Publication Date:
September 26, 2019
Filing Date:
February 05, 2019
Export Citation:
Assignee:
SANDEN HOLDINGS CORP (JP)
International Classes:
F04C28/00; F04C18/02; F04C29/04; F25B1/00; F25B1/04
Foreign References:
| JPH0514579U | 1993-02-26 | |||
| JP2010164303A | 2010-07-29 |
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