Title:
TURBINE WITH VARIABLE NUMBER OF NOZZLES
Document Type and Number:
WIPO Patent Application WO/2008/020619
Kind Code:
A1
Abstract:
A gas turbine has a large efficiency drop against fluctuations in a gas flow rate. As one method for solving this problem, there exists a variable nozzle turbine, which cannot be said to have a high partial efficiency so that it causes a problem of many refractory moving parts. This problem is solved by adding one refractory moving part to a gas turbine, in which the entrance portions of a series of nozzles for injecting gases to moving blades are grouped and arranged together on an arc and are equipped with a single open/close valve commonly at those entrance portions so that the gas turbine has no drop in efficiency against the change inthe inflow gas rate. Moreover, a turbine type compressor having no surge limit is realized by combining the turbine with variable number of nozzles as a regenerator with a compression turbine. These turbines realize a small-sized gas turbine engine having an improved partial mileage or a turbocharger capable of improving the efficiency of a displacement type engine thereby to generate electric power from the exhaust gases. Incidentally, this turbine is ready for license agreements.
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Inventors:
OOYAMA KAZUO (JP)
Application Number:
PCT/JP2007/066006
Publication Date:
February 21, 2008
Filing Date:
August 17, 2007
Export Citation:
Assignee:
JOHO CORP (JP)
OOYAMA KAZUO (JP)
OOYAMA KAZUO (JP)
International Classes:
F02B37/22; F01N5/04; F02B41/10; F02B61/00; F02B75/02; F02G5/02
Foreign References:
| JPH0149525C | ||||
| JP2004162595A | 2004-06-10 | |||
| JP2003322025A | 2003-11-14 |
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