The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 25, 1989

Filed:

Apr. 13, 1988
Applicant:
Inventor:

Dah Y Cheng, Los Altos Hills, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ;
U.S. Cl.
CPC ...
60 3904 ; 60 3905 ; 60 39161 ; 60 3955 ;
Abstract

A steam-injected free-turbine type of gas turbine is disclosed. In order to avoid the necessity of redesigning the compressor/core turbine, the shaft of the core turbine is modified to provide additional load output. As steam is injected into the system the resulting excess power of the core turbine is taken out of the system by coupling the compressor output shaft with a load. Thus, the core turbine operates as a single shaft turbine in addition to the existing power turbine. A control provides control of the load output of the two turbine output shafts so that the compressor/turbine stays in the matched operating domain.


Find Patent Forward Citations

Cheng, Dah. (1989). Steam-injected free-turbine-type gas turbine (U.S. Patent No. 4823546). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4823546

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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