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.:
Date of Patent:
Mar. 31, 2020
Filed:
Dec. 29, 2017
Applicant:
The Government of the United States of America, As Represented BY the Secretary of the Navy, Arlington, VA (US);
Inventors:
Oscar Biblarz, Carmel, CA (US);
Garth V. Hobson, Pacific Grove, CA (US);
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02K 9/48 (2006.01); F02K 9/50 (2006.01); F02K 9/64 (2006.01); F02K 9/42 (2006.01); F02K 9/44 (2006.01); F02K 9/97 (2006.01); F02K 9/58 (2006.01);
U.S. Cl.
CPC ...
F02K 9/48 (2013.01); F02K 9/42 (2013.01); F02K 9/425 (2013.01); F02K 9/44 (2013.01); F02K 9/50 (2013.01); F02K 9/64 (2013.01); F02K 9/972 (2013.01); F02K 9/58 (2013.01);
Abstract
An apparatus and method to enhance the performance of rockets engines which utilize liquid methane/oxygen propellants by injecting optimized amounts of pressurized hot helium gas into the combustion chamber with the propellants. In one embodiment, the pressurized helium gas is stored at low temperatures near those of the cryogenic propellants and is used for regenerative cooling of the combustion chamber and nozzle during rocket operation in order to raise the temperature of the helium gas before being injected into the combustion chamber.