Title:
ロータリー圧縮機
Document Type and Number:
Japanese Patent JP6727300
Kind Code:
B2
Abstract:
This rotary compressor is provided with: a sealed container; a compression element for compressing a coolant; and an electromotive element which serves as a drive source of the compression element. The compression element includes: a cylinder which is fixed to the sealed container; a crank shaft which is fixed to a rotor of the electromotive element; a rolling piston which compresses a coolant; an upper bearing which rotatably supports the crank shaft; a discharge muffler which is formed of a cylindrical body covering the upper bearing, and along an end edge of which a flange part extending outward is formed; and a pair of fastening members which are positioned so as to be opposed to each other with the crank shaft interposed therebetween and which fasten the flange part of the discharge muffler and the upper bearing so as to bring the flange part and the upper bearing into pressure contact with each other. Within ranges each obtained by 40°-rotation, in the left and right directions, around the rotational axial center of the crank shaft from a reference axis that passes the rotational axial center of the crank shaft and that is orthogonal to an axial line connecting the pair of fastening members with each other, pressure contact parts protruding toward the upper bearing are provided, on both sides across the axial line, on a lower surface of the flange part of the discharge muffler.
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Inventors:
Tomohiro Iyanagi
Application Number:
JP2018523078A
Publication Date:
July 22, 2020
Filing Date:
June 14, 2016
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F04C29/06
Domestic Patent References:
| JP2009174366A | ||||
| JP3077983U | ||||
| JP10169585A | ||||
| JP2012062756A |
Attorney, Agent or Firm:
Patent Business Corporation Kisa Patent Trademark Office