Rocket engine construction and connection for closed and opened fluid cooling circuits for the walls thereof

US4055044A · kind A · utility

Assignee

• Messerschmitt Bolkow Blohm GmbH · DE

Inventors

• Helmut Dederra · Ottobrunn, DE
• Gunther Schmidt · Biberach, DE
• Jurgen Stanke

Key dates

• Filing date: Nov 11, 1974
• Grant date: Oct 25, 1977
• Expiry date: Nov 11, 1994

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02K9/972
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fluid cooled rocket, comprises a tubular housing which forms an interior combustion chamber which has a closed end formed by a head containing a propellant component injector, and an opposite opened end forming a thrust gas discharge. The housing side walls define an interior combustion chamber of uniform diameter, adjacent the closed head, is formed into an inwardly converging portion, a nozzle neck portion of smallest diameter, and an outwardly diverging portion, all proceed in a direction from the closed end toward the opposite gas discharge open end. The inwardly converging portion and the nozzle neck portion, and at least a part of the diverging portion, is formed with a first wall construction having a plurality of circumferentially arranged longitudinally extending first cooling channels, which are connected at the ends adjacent the opened discharge end with an annular inlet duct and at the end adjacent the closed head, with an annular discharge duct, which is advantageously connected to the injector. The first cooling channels are therefor connected in a closed circuit from the supply pump to the injector. At least one second set of cooling channels are formed in at least…