Pressure limiting propellant actuating system

US4183217A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Paul B. Reese · Kingston, JM
• David Warren Murphy · Neenah, US

Key dates

• Filing date: Aug 4, 1978
• Grant date: Jan 15, 1980
• Expiry date: Aug 4, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01B11/004
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A pressure limiting propellant actuating system includes an outer barrel housing having a combustion chamber formed therein. A main piston is movable in the barrel housing when a pressure is developed in the combustion chamber. A relief piston is concentrically mounted and fixedly movable with the main piston when the gas pressure is exerted thereon from the combustion chamber. The relief piston includes a separation mechanism for limiting the output force and simultaneously, maintaining output pressure from the combustion chamber.