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Patent Searching and Data


Title:
ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/018005
Kind Code:
A1
Abstract:
The rotary compressor of an embodiment has a container, a cylinder, closure plates, a roller, a blade, and oil supply grooves. The closure plates close the openings of a cylinder to form a cylinder chamber together with the cylinder. The roller rotates eccentrically within the cylinder chamber. The blade is provided in a blade groove formed in the cylinder, is in contact with the roller to divide the inside of the cylinder chamber, and can extend into and retract from the cylinder chamber as the roller rotates eccentrically. The oil supply grooves are formed in the surfaces of the blade, which face the closure plates, and the oil supply grooves extend in the direction of movement of the blade. A first end of each of the oil supply grooves is in communication with the inside of the container at a position outside the cylinder chamber, and a second end thereof terminates in the blade. The bottom surfaces of the oil supply grooves have lower surface roughness than a rear surface of the outer surfaces of the blade, the rear surface being located close to the first end.

Inventors:
KIMURA SHIGEKI (JP)
HIRAYAMA TAKUYA (JP)
Application Number:
PCT/JP2016/061676
Publication Date:
February 02, 2017
Filing Date:
April 11, 2016
Export Citation:
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Assignee:
TOSHIBA CARRIER CORP (JP)
International Classes:
F04C18/356; F04C29/02
Foreign References:
JP2006258001A2006-09-28
JPH08159071A1996-06-18
JPS56159694U1981-11-28
Other References:
See also references of EP 3327289A4
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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