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Title:
TURBINE ROTOR BLADE AND VARIABLE CAPACITY TURBINE
Document Type and Number:
WIPO Patent Application WO/2016/151849
Kind Code:
A1
Abstract:
A turbine rotor blade according to an embodiment of the present invention comprises: a hub part that is connected to one end of a rotating shaft; a plurality of main blades that are provided on a peripheral surface of the hub part so as to be spaced apart from one another; and a short blade that is provided between two adjacent main blades among the plurality of main blades. Between two adjacent main blades, an inter-blade flow channel is formed along which a fluid flows from the outside toward the inside in a radial direction of the turbine rotor blade. A hub-side end of a leading edge of the short blade is positioned closer to the inside in the radial direction than hub-side ends of leading edges of the main blades on a meridian plane.

Inventors:
YOKOYAMA, Takao (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
IBARAKI, Seiichi (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
YOSHIDA, Toyotaka (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2015/059419
Publication Date:
September 29, 2016
Filing Date:
March 26, 2015
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
International Classes:
F01D1/06; F01D5/04; F01D5/14; F01D17/14; F02C9/22; F04D23/00; F04D29/30
Domestic Patent References:
WO2006117072A12006-11-09
Foreign References:
JP2013015035A2013-01-24
JP2013011260A2013-01-17
DE3908285C11990-06-07
Other References:
See also references of EP 3236007A4
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (Mita 43MT Building 13th Floor, 13-16 Mita 3-Chome, Minato-k, Tokyo 73, 〒1080073, JP)
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