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Patent Searching and Data


Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/169072
Kind Code:
A1
Abstract:
Provided is a rotary compressor which includes first and second cylinders arranged in the axial direction of a driving shaft, and in which a suction path for supplying a refrigerant, supplied through a suction pipe from an external apparatus, to each of compression chambers is formed. The surface area of a suction path-facing region in the second cylinder is smaller than the surface area of a suction path-facing region in the first cylinder. The difference between the height of the second cylinder in the axial direction and the height in the axial direction of a piston disposed in a compression chamber of the second cylinder is smaller than the difference between the height of the first cylinder in the axial direction and the height in the axial direction of a piston disposed in a compression chamber of the first cylinder (A3-A4 < A1-A2). Therefore, miniaturization of the compressor and inhibition of degradation in compressor efficiency can both be achieved.

Inventors:
HAYASHI TAKEO (JP)
ENDOU CHIHIRO (JP)
Application Number:
JP2018/010583
Publication Date:
September 20, 2018
Filing Date:
March 16, 2018
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04C29/12; F04C18/32; F04C23/00; F04C29/00
Foreign References:
JP2009062929A2009-03-26
JPS62195483A1987-08-28
JP2016118142A2016-06-30
Other References:
See also references of EP 3597923A4
Attorney, Agent or Firm:
KAJI, SUHARA & ASSOCIATES (JP)
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