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:
Sep. 30, 1997
Filed:
Mar. 08, 1996
Johann Hocheri, Unterhaching, DE;
Abstract
Solid-propellant rocket engine with a combustion chamber, with a thrust nozzle, with one or more grains in the combustion chamber, at least one of which comprises two parts, namely, an inner burner part and an outer burner part, wherein the latter is connected to a support structure, has a cross section changing over its length, is accommodated in the hollow space of identical shape of the inner burner part, and is axially displaceable. A thermal barrier is arranged at the nozzle-side end of the two-part grain. The outer burner part is fitted gap-free into the inner burner part. The contour formed by the contact surfaces of the two grain parts encloses a cross section expanding from the front to the rear. The outer burner part can be moved from a front, inactive position, which is positive-locking with the inner burner part, into a rear, active position with a defined flow gap between the contact surfaces of the grains.