Title: Boost survivable ramjet elements

Abstract: Protectors for certain elements such as fuel injectors and flameholders used in conjunction with the ramjet phase of an integral rocket ramjet. In the preferred embodiment slip-on caps of a high temperature material such as graphite are used to protect the fuel injectors and flameholders. The caps are installed and the solid boost propellant packaged about them. Following boost burnout the initial fuel pressurization for transition to ramjet operation would remove the caps allowing operation in a ramjet mode.

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Inventors: Brunner, Dietrich W. (Kent, WA, US)

Application Number: 662983
Filing Date: 1976-03-01
Publication_date: 1980-05-13
Assignee: The Boeing Company (Seattle, WA)
Primary Class(es): 60/245 60/250, 60/258, 60/767
Other Classes:
US Patent Ref:

2912820	Nov, 1959	Whitmore	60/225.
3332243	Jul, 1967	Wilson	60/253.
3354647	Nov, 1967	Aycock	60/250.
3482403	Dec, 1969	Pol, Jr.	60/245.
3803837	Apr, 1974	Curran	60/245.
3940067	Feb, 1976	Cherry et al.	60/253.

Other Refs:
Primary Examiner: Bentley, Stephen C.
Assistant Examiner:
Attorney: Zovko, Jr.; Mark J., Thomas; Kenneth W., Mohn; J. Peter