Title:
HERMETIC COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/180900
Kind Code:
A1
Abstract:
The compression mechanism of this hermetic compressor has a hollow cylinder, a crankshaft which is rotated by an electric motor, a rolling piston which is fitted to the eccentric shaft of the crankshaft and which rotates eccentrically along the inner peripheral surface of the cylinder, a vane which divides a refrigerant compression chamber into a high-pressure region and a low-pressure region, and a spring which urges the vane against the outer peripheral surface of the rolling piston so that the vane follows the eccentric rotation of the rolling piston. A case which contains the spring is provided to the body section of a hermetic container. The case has a frangible section, the strength of which against an external force acting from the axis of the crankshaft to the outside of the hermetic container is lower than that of the hermetic container, and the case is in communication with the compression chamber. The case is positioned so that the distance measured in the radial direction of the cylinder from the axis of the crankshaft to the frangible section is not less than the distance measured in the radial direction of the cylinder from the axis of the crankshaft to the outer peripheral surface of the hermetic container.
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Inventors:
SUZUKI KATSUKI (JP)
SUGIURA KANICHIRO (JP)
IYANAGI TOMOHIRO (JP)
SUGIURA KANICHIRO (JP)
IYANAGI TOMOHIRO (JP)
Application Number:
PCT/JP2018/011608
Publication Date:
September 26, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/356; F04C28/28
Foreign References:
| JP2009228522A | 2009-10-08 | |||
| JP2012255416A | 2012-12-27 | |||
| JPS60173384A | 1985-09-06 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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