VARIABLE-CAPACITY COMPRESSOR - VALEO JAPAN CO LTD

Title:

VARIABLE-CAPACITY COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2016/152959

Kind Code:

A1

Abstract:

[Problem] To provide a variable-capacity compressor with which it is possible to improve the starting performance of the compressor, and eliminate the risk of the compressor becoming uncontrollable due to refrigerant contamination or the like. [Solution] An opening passage 50 for communicating a control pressure chamber 4 and a suction chamber 33 is provided separate from an air bleed passage, a valve accommodation chamber 51 is formed over the opening passage, and the opening passage 50 has an upstream-side opening passage 50a for communicating the control pressure chamber 4 and the valve accommodation chamber 51, and a downstream-side opening passage 50b for communicating the valve accommodation chamber 51 and the suction chamber 33. The valve accommodation chamber 51 is provided with a valve body 52 accommodated so as to open and close the downstream-side opening passage 50b, and an urging means (spring 53) for urging the valve body 52 in an opening direction. The downstream side of a pressure control valve 42, which is provided over an air feed passage 40 for communicating a discharge chamber and the control pressure chamber 4, is connected to the valve accommodation chamber 51 via a pressure introduction passage 54. A check valve (first check valve 60) for allowing only upstream-to-downstream flow may also be provided downstream from the location in the air feed passage 40 where the pressure introduction passage 54 branches.

More Like This:

WO/2003/106204	CONTROLLER OF VARIABLE DISPLACEMENT COMPRESSOR
JP6032228	Variable displacement type swash-plate compressor
JP7191957	capacity control valve

Inventors:

KAZAHAYA YUKIO (JP)
AMEMORI MASANORI (JP)
MORITA YUJIRO (JP)

Application Number:

PCT/JP2016/059317

Publication Date:

September 29, 2016

Filing Date:

March 24, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

VALEO JAPAN CO LTD (JP)

International Classes:

F04B27/18

Foreign References:

JP2005307882A	2005-11-04
JPS62119483U	1987-07-29
JP2012215088A	2012-11-08

Other References: