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Patent Searching and Data


Title:
HERMETIC COMPRESSOR
Document Type and Number:
Japanese Patent JP2009138693
Kind Code:
A
Abstract:

To provide a hermetic compressor that suppresses supply of a refrigerant to the sliding part of a compression element and excessive oil rise in starting.

A scroll compressor 100 including the compression element 30 and an electric element 40 which are stored inside of a sealed vessel 11 is so configured that (a) the compression element 30 delivers a high-pressure refrigerant to the internal space of the sealed vessel 11, (b) a temperature sensor 8 is provided for detecting temperature in the vicinity of the bottom of the sealed vessel 11, and (c) R32 (difluoromethane) is used as the refrigerant. When starting the scroll compressor 100, the compression element 30 is driven in order not to exceed a predetermined rotational speed, and after the temperature sensor 8 detects temperature higher than a predetermined temperature, the compression element 30 is driven at a rotational speed higher than the predetermined rotational speed.


Inventors:
MISAKA REI
MAEYAMA HIDEAKI
Application Number:
JP2007318045A
Publication Date:
June 25, 2009
Filing Date:
December 10, 2007
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F04B49/06; F04B39/00; F04B49/10; F25B1/00
Attorney, Agent or Firm:
Shoji Mizoi