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:
Oct. 29, 2002
Filed:
Mar. 30, 2000
Applicant:
Inventor:
Joachim Kretschmer, Feldafing, DE;
Assignee:
Astruim GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 9/64 ;
U.S. Cl.
CPC ...
F02K 9/64 ;
Abstract
A regeneratively coolable nozzle for a rocket engine is formed by winding a tubular material ( ) onto a winding mandrel to produce a helical composite structure ( ), through which a coolant can flow during operation of the nozzle. The spiral composite structure ( ) is fixed temporarily and the fixed composite structure ( ) is removed from the winding mandrel. Then an inner heat resistant, load bearing layer ( ) is applied to the radially inner hot-gas facing surface (H) of the fixed composite structure ( ). The present nozzle is lightweight and withstand a high coolant pressure.