Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2020/152767
Kind Code:
A1
Abstract:
This scroll compressor, in which a fixed scroll and a swing scroll are provided so that the respective spiral teeth are engaged and a compression chamber is formed between the fixed scroll and the swing scroll, is provided with a compliant frame that floats due to the intermediate pressure inside the compression chamber as a back pressure and presses the swing scroll against the fixed scroll, wherein a communication hole is formed in a swing base plate to allow the compression chamber and a boss section space, which is formed by the compliant frame and the swing scroll, to communicate at a timing when an intermediate pressure is greater than an intake pressure and lower than a middle pressure, and a flow rate suppressing section for suppressing the flow rate of a refrigerating machine oil which flows between the boss section space and the compression chamber, is formed in the communication hole. As a result, the inflow amount of the refrigerating machine oil flowing into the compression chamber is reduced and a reduction in the coolant amount that can be suctioned in can be suppressed, and thus a reduction in the cooling efficiency is prevented and an improvement in performance can be achieved.
Inventors:
TAKAHASHI HIROYASU (JP)
Application Number:
PCT/JP2019/001790
Publication Date:
July 30, 2020
Filing Date:
January 22, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/02
Foreign References:
| JP2011111969A | 2011-06-09 | |||
| JP2011106322A | 2011-06-02 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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