Title:
INJECTION CONTROL METHOD AT REFRIGERATOR
Document Type and Number:
Japanese Patent JP2019167894
Kind Code:
A
Abstract:
To provide an injection control method at a refrigerator in which an improvement of coefficient of performance (COP) and a back pressure load/a compression reaction force balance of a scroll compressor can be simultaneously accomplished.SOLUTION: A control method in this invention is applied to a refrigerator including a scroll compressor, an injection control unit and a control device. The scroll compressor comprises an oscillation scroll and a fixed scroll, a compression chamber is formed between the oscillation scroll and the fixed scroll. A back-pressure chamber is formed at a side opposite to the compression chamber of the oscillation scroll, the oscillation scroll is constituted in such a way that it may receive the back pressure load under application of pressure of refrigerant gas fed into the back-pressure chamber and an area where the back pressure load exceeds a first predetermined value is applied as a first injection essential area.SELECTED DRAWING: Figure 1
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Inventors:
YAMAZAKI HARUHISA
Application Number:
JP2018056695A
Publication Date:
October 03, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
SANDEN HOLDINGS CORP
International Classes:
F04C28/00; F04C18/02; F04C29/04; F25B1/04
Attorney, Agent or Firm:
Koji Nagato
Shiro Aihara
Shiro Aihara