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Patent Searching and Data


Title:
TURBO DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/030164
Kind Code:
A1
Abstract:
The present invention is a turbo device in which the vanes have an outwardly convex shape as viewed in longitudinal section, wherein unstable characteristics produced due to re-circulating flow are effectively improved. Provided is a turbo machine provided with a casing, and an impeller disposed in the casing and having a plurality of vanes. In the turbo device, the plurality of vanes has an outwardly convex shape as viewed in cross-section that includes the rotating shaft of the impeller, the internal peripheral surface of the casing has an inwardly concave shape as viewed in cross-section of the interval facing the plurality of vanes, and a plurality of grooves is formed on the internal peripheral surface of the casing in at least a portion of the interval.

Inventors:
KAGAWA, Shusaku (11-1 Haneda Asahi-cho, Ohta-k, Tokyo 10, 〒1448510, JP)
SAKURAI, Takaki (11-1 Haneda Asahi-cho, Ohta-k, Tokyo 10, 〒1448510, JP)
TSUJIMURA, Manabu (11-1 Haneda Asahi-cho, Ohta-k, Tokyo 10, 〒1448510, JP)
SASAKI, Kaori (11-1 Haneda Asahi-cho, Ohta-k, Tokyo 10, 〒1448510, JP)
MATSUMURA, Takashi (11-1 Haneda Asahi-cho, Ohta-k, Tokyo 10, 〒1448510, JP)
Application Number:
JP2016/074101
Publication Date:
February 23, 2017
Filing Date:
August 18, 2016
Export Citation:
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Assignee:
EBARA CORPORATION (11-1, Haneda Asahi-cho Ohta-k, Tokyo 10, 〒1448510, JP)
International Classes:
F04D29/66; F04D11/00; F04D23/00
Foreign References:
JPS60124599U1985-08-22
JP2015514906A2015-05-21
JPS5795500U1982-06-11
Attorney, Agent or Firm:
ONO, Shinjiro et al. (YUASA AND HARA, Section 206 New Ohtemachi Bldg., 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
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