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Patent Searching and Data


Title:
HERMETIC ELECTRIC COMPRESSOR
Document Type and Number:
Japanese Patent JP2005113863
Kind Code:
A
Abstract:

To achieve a compressor of high efficiency requiring no complex driving control by increasing rotation speed in a low speed rotation region where efficiency of an electric motor in the compressor is very low.

A cutout 11 is formed in side portions in a rotation direction of a rolling piston 7 at ends of a cylinder inner wall of a cylinder 3 and a suction hole 10 penetrating the inner wall. Refrigerant leaks from the cutout 11 at the time of low speed operation of the compressor and operation speed can be increased for securing necessary capability of the compressor. The electric motor can be operated at a high efficiency region and the efficiency of the compressor at low speed can be improved.


Inventors:
SHIRAI FUTOSHI
SHIIZAKI HIROSHI
Application Number:
JP2003352011A
Publication Date:
April 28, 2005
Filing Date:
October 10, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F04C29/12; F04C18/356; F04C29/00; (IPC1-7): F04C18/356; F04C29/00
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito