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Title:
CENTRIFUGAL COMPRESSOR
Document Type and Number:
Japanese Patent JP2018080619
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a centrifugal compressor capable of reducing pressure loss in a discharge flow channel.SOLUTION: A centrifugal compressor includes a compressor impeller, and a scroll 7 disposed around the compressor impeller and provided with a flow channel 53. The flow channel 53 includes a scroll flow channel 54 along a rotating direction Rd of the compressor impeller, a discharge flow channel 55 connected to a terminal point part 54b in a rotating direction, of the scroll flow channel 54, and a merging port 57 connecting a starting point part 54a in the rotating direction Rd of the scroll flow channel 54 and a side portion 56 of a discharge flow channel 55. In a region from the starting point part 54a to the merging port 57 along the rotating direction Rd, a throttled cross-sectional portion having an area of a flow channel cross-section smaller than a maximum cross-sectional portion, is disposed on a region at a downstream side of the discharge flow channel 55 from the merging port 57, when a part having a maximum area of the flow channel cross-section orthogonal to a central line of the flow channel 53 is the maximum cross-sectional portion.SELECTED DRAWING: Figure 3

Inventors:
KANZAKI MASARU
WANG BAOTONG
SATO WATARU
Application Number:
JP2016222575A
Publication Date:
May 24, 2018
Filing Date:
November 15, 2016
Export Citation:
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Assignee:
IHI CORP
International Classes:
F04D29/44; F04D17/10
Domestic Patent References:
JP2005207337A2005-08-04
JPS61501939A1986-09-04
JP2008067746A2008-03-27
JP2012140900A2012-07-26
Foreign References:
WO2015064272A12015-05-07
WO2014112473A12014-07-24
US4789301A1988-12-06
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Ryosuke Yasuda
Hiroyuki Nishimoto



 
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