COMPRESSOR - CALSONIC KANSEI CORP

Title:

COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2008/013190

Kind Code:

A1

Abstract:

A rotary valve (71) of a compressor has a release path (71e) for releasing high-pressure residual gas, which is not completely discharged in a compression/discharge stroke and remains in place, from a cylinder bore (B1) in the initial stage of an intake stroke to other cylinder bores (B3, B4) where the pressure is lower than that in the cylinder bore (B1). The release path (71e) has an entrance (71f), a first exit (71g), a second exit (71h), and a communication section (71k) for interconnecting them. In a time period when the entrance (71f) of the release path (71e) is communicated with the cylinder bore (B1) in the initial stage of an intake stroke, the first exit (71g) is first communicated with the cylinder bore (B3) immediately before, in the rotation direction, the cylinder bore (B4) right opposite the cylinder bore (B1), and then the second exit (71h) is communicated with the cylinder bore (B4) right opposite the cylinder bore (B1).

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Inventors:

MAKISHIMA HIROYUKI
KOBAYASHI NOBUYUKI

Application Number:

PCT/JP2007/064555

Publication Date:

January 31, 2008

Filing Date:

July 25, 2007

Export Citation:

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Assignee:

CALSONIC KANSEI CORP (JP)
MAKISHIMA HIROYUKI
KOBAYASHI NOBUYUKI

International Classes:

F04B27/10

Foreign References:

JPH06221264A	1994-08-09
JPH06129350A	1994-05-10
JPH0379743B2	1991-12-19
JPH0379741B2	1991-12-19
JPH08144946A	1996-06-04

Other References: