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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/171562
Kind Code:
Provided is a scroll-type fluid machine in which cooling wind is allowed to flow efficiently using a simple shape of cooling wind passageway, thereby increasing reliability without reducing productivity. Accordingly, the scroll-type fluid machine is provided with: a fixed scroll having a spiral lap part; an orbiting scroll having a spiral lap part forming, between the spiral lap part and the lap part of the fixed scroll, a compression chamber; a drive shaft which is connected to the orbiting scroll and executes a rotating motion to cause the orbiting scroll to execute an orbiting motion; a cooling fan which is disposed on the side of the drive shaft opposite to the orbiting scroll and generates cooling wind; and a cooling wind duct which allows the cooling wind generated by means of the cooling fan to be circulated to the fixed scroll and the orbiting scroll. In a bent portion in which the direction of the cooling wind duct is changed from a direction perpendicular to the drive shaft to the direction of the drive shaft, a part of an outer peripheral wall farther from the drive shaft is configured from a plane intersecting a plane perpendicular to the drive shaft at an obtuse angle.

YAMAZAKI Shumpei (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
SADAKATA Kosuke (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
Application Number:
Publication Date:
September 12, 2019
Filing Date:
March 09, 2018
Export Citation:
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HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. (3 Kanda Neribei-cho, Chiyoda-ku Tokyo, 22, 〒1010022, JP)
International Classes:
Foreign References:
Attorney, Agent or Firm:
SEIRYO I.P.C. (24-2, Hatchobori 2-chome Chuo-k, Tokyo 32, 〒1040032, JP)
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