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Patent Searching and Data


Title:
SCRAMJET ENGINE AND FLYING OBJECT
Document Type and Number:
WIPO Patent Application WO/2019/155654
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve the combustion efficiency of a scramjet engine. The scramjet engine is provided with a first and a second flow passageway forming members, and a first and a second fuel injection devices. A flow passageway formed between the first flow passageway forming member and the second flow passageway forming member includes: a turbulence forming region into which compressed air is introduced from upstream; and a combustion region which is positioned downstream of the turbulence forming region and in which combustion using compressed air is performed. The second flow passageway forming member is formed with a protrusion which is positioned in the turbulence forming region and which protrudes toward the first flow passageway forming member. The first fuel injection device injects fuel into the compressed air via a first fuel nozzle provided in the protrusion. The second flow passageway forming member is formed with a cavity positioned in the combustion region. The second fuel injection device injects fuel into the compressed air via a second fuel nozzle provided in the cavity. The cavity includes a bottom surface and an inclined surface connecting to a downstream end of the bottom surface. The inclination of the inclined surface of the cavity is adjusted so as to generate a shock wave in the combustion region.

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Inventors:
NAKAMURA Masaharu (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
TSUNEMI Akihiko (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
HANIU Takuto (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2018/026500
Publication Date:
August 15, 2019
Filing Date:
July 13, 2018
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-Chome Minato-k, Tokyo 15, 〒1088215, JP)
International Classes:
F02K7/14
Foreign References:
JP2017166409A2017-09-21
JP2012202226A2012-10-22
JP2004084516A2004-03-18
JP2000146184A2000-05-26
JP2012013007A2012-01-19
JP2012207555A2012-10-25
US5253474A1993-10-19
JP2016056692A2016-04-21
US5202525A1993-04-13
Attorney, Agent or Firm:
KARINO Yoshimasa (9F 20-8, Minamiooi 6-chome Shinagawa-k, Tokyo 13, 〒1400013, JP)
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