Title:
ROTARY COMPRESSOR
Document Type and Number:
Japanese Patent JP2019183768
Kind Code:
A
Abstract:
To perform a stable supplying of lubricant to a sliding portion.SOLUTION: A rotary compressor comprises: a vertical installed airtight cylindrical compressor casing having a refrigerant discharging part and a refrigerant suction part and its lower part acting as lubricant storage part; a compression part arranged at a lower part of the compressor casing to compress refrigerant sucked from the sucking part and to discharge the refrigerant; and a motor arranged at an upper part of the compressor casing to drive the compression part. The compression part includes a motor arranged at the upper part of the compressor casing to drive the compression part. The compression part comprises an annular cylinder, an upper end plate closing the upper side of the cylinder, a lower end plate for closing a lower side of the cylinder, a main bearing part arranged at the upper end plate, a sub-bearing arranged at the lower end plate, a rotating shaft supported by the main bearing part and the sub-bearing part and rotated by a motor, and an annular piston fitted to an eccentric part of the rotating shaft, turned along an inner peripheral surface of the cylinder to form a cylinder chamber. An inner peripheral surface of a shaft hole of the sub-bearing is formed with a helical oil feeding groove for (Space is not available).SELECTED DRAWING: Figure 1
Inventors:
HOSHINO SHUHEI
Application Number:
JP2018076929A
Publication Date:
October 24, 2019
Filing Date:
April 12, 2018
Export Citation:
Assignee:
FUJITSU GENERAL LTD
International Classes:
F04C29/02; F04C18/356; F04C29/00
Attorney, Agent or Firm:
Sakai International Patent Office