Abstract: An injector assembly 10 for injecting fuel and oxidizer in a combustion chamber 38 of a fluid-fueled rocket engine. Injector assembly 10 comprises a stationary housing 12, a plate member 14 attached to the housing 12, at least one injector subassembly 18 and actuation means 16. Each injector subassembly 18 includes a plug 44 attached to the housing 12 and a movable elongated throttle means 64 connected to the actuation means 16. When the throttle is at least partially open, fuel flows through inlet 20, orifice 110, inner passageway 66, orifice 112 and finally to the combustion chamber 38. Oxidizer flows through inlet 22, orifice 114, outer passageway 68, orifice 116 and finally to the combustion chamber 38. Controlling the flow of propellants at upstream orifices 110,114 controls the propellant pressure at the downstream orifices 112,116 during thrust level changes and corresponding combustion chamber pressure changes of the engine, thereby maintaining a constant stream momentum and combustion efficiency.

Abstract: An acceleration responsive tripping mechanism which employs the use of a weighted ball which rests upon a pedestal when in the at rest position. Upon movement of the ball from the pedestal, the ball will contact a suspended member which is subsequently moved causing activation of an actuation means.

Abstract: A ball valve with an actuator wherein a seal assembly with a combination O-ring swivel and seal for producing a tight seal is hidden in a pocket isolated from the flow of fluid through the valve by an inlet reentrant flange and the valve body. The swivel and other parts of the seal assembly including but not limited to the seal thereof, because the O-ring swivel makes the seal assembly mount tenuous and subject to chattering and vibration, can be damaged. This is true because the seal assembly seal receives large and rapid impact loads. The chattering and vibration also thereby produce serious damage to and wear on the seal assembly seal. A great deal of chattering and vibration is usually caused by exposing the seal assembly to the fluid passing through the valve. In the ball valve disclosed herein this is prevented by mounting the seal assembly in the isolated pocket. The valve disclosed herein also has other features.

Abstract: A ball valve with an actuator wherein a seal assembly with a combination O-ring swivel and seal for producing a tight seal is hidden in a pocket isolated from the flow of fluid through the valve by an inlet reentrant flange and the valve body. The swivel and other parts of the seal assembly including but not limited to the seal thereof, because the O-ring swivel makes the seal assembly mount tenuous and subject to chattering and vibration, can be damaged. This is true because the seal assembly seal receives large and rapid impact loads. The chattering and vibration also thereby produce serious damage to and wear on the seal assembly seal. A great deal of chattering and vibration is usually caused by exposing the seal assembly to the fluid passing through the valve. In the ball valve disclosed herein this is prevented by mounting the seal assembly in the isolated pocket. The valve disclosed herein also has other features.