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Title:
SCROLL-TYPE COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2017/163826
Kind Code:
A1
Abstract:
In order to suppress reduction in pressure inside a back pressure chamber following the opening action of a back pressure adjustment valve, this scroll-type compressor 100 comprises: a scroll unit 1; a back pressure chamber H3 connected to a discharge chamber H2 via a pressure supply passage L3; and a back pressure adjustment valve 50 provided in a pressure release passage L4. A first throttling section T1 is provided in the pressure supply passage L3 and a second throttling section T2 is provided in the pressure release passage L4. The back pressure adjustment valve 50 is provided in the pressure release passage L4 and operates in the open-valve direction if the pressure difference between the back pressure chamber pressure Pm and the pressure PS in an intake chamber exceeds a prescribed pressure difference Pv. The second throttling section T2 has a cross-sectional area Aout that is larger than the cross-sectional area Ain of the first throttling section T1 and smaller than the cross-sectional area Av1 of the valve-side opening of a fluid entry hole 56 in the back pressure adjustment valve 50.

Inventors:
SATO TAIZO (JP)
Application Number:
JP2017/008631
Publication Date:
September 28, 2017
Filing Date:
February 24, 2017
Export Citation:
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Assignee:
SANDEN AUTOMOTIVE CONPONENTS CORP (JP)
International Classes:
F04C18/02
Foreign References:
JP2013148020A2013-08-01
JP2013148043A2013-08-01
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