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.

Patent No.:

US 9145831 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 29, 2015

Filed:

Jan. 07, 2015
Applicant:

Rj Helicopter Corporation, Scottsdale, AZ (US);

Inventor:

David J White, La Mesa, CA (US);

Assignee:

RJ Helicopter Corporation, Scottsdale, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/08 (2006.01); F01D 1/32 (2006.01); F02K 7/00 (2006.01);
U.S. Cl.
CPC ...
F02C 7/08 (2013.01); F01D 1/32 (2013.01); F02K 7/005 (2013.01);
Abstract

A reaction-jet helicopter with a recuperator. Hot gas exiting the recuperator is directed to the helicopter's hollow-body rotor blades to increase the energy of the air exiting the jets and thus increase thrust and improve fuel efficiency. Hot gas exiting the recuperator may also be directed to the gas turbine of the helicopter's engine, further increasing fuel efficiency. A splitter valve on the exit side of the recuperator may be employed to direct exiting gas for one or more desired uses. The recuperator includes a heat exchanger, preferably an all-prime surface heat exchanger. The recuperator system may be combined with a circulation control system on the hollow-body rotor blades to further increase fuel efficiency.


Find Patent Forward Citations

White, David. (2015). Recuperated gas turbine system for reaction-jet helicopters (U.S. Patent No. 9145831). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9145831

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

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