Solenoid operated bipropellant valve
First Claim
1. A solenoid operated valve comprising a housing having a first passage and a second passage, a first movable valve element in the housing controlling flow of fluid through the first passage, a second movable valve element in the housing controlling flow of fluid through the second passage, said second valve element being annular and surrounding said first valve element, and a single solenoid controlling movement of both valve elements.
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Accused Products
Abstract
A valve for simultaneously controlling the flow of two propellant fluids to a rocket engine. The valve has separate flow passages for the two fluids and a separate valve element for controlling the flow through each passage. A single solenoid simultaneously controls the movement of both valve elements and each valve element provides a portion of the path for the magnetic flux generated by the solenoid. Each flow passage leads to a series of openings in a wall of the engine, such openings serving as injection orifices to the combustion chamber of the engine. The openings are of small diameter and length so that the volume of the openings between the valve seat and the combustion chamber is relatively small. Separation of the two flow passages is accomplished without the use of flexible or sliding seals.
21 Citations
24 Claims
- 1. A solenoid operated valve comprising a housing having a first passage and a second passage, a first movable valve element in the housing controlling flow of fluid through the first passage, a second movable valve element in the housing controlling flow of fluid through the second passage, said second valve element being annular and surrounding said first valve element, and a single solenoid controlling movement of both valve elements.
- 14. A solenoid operated valve comprising a valve housing having a bore closed at one end by a solenoid housing, said solenoid housing having an annular spacer extending within said bore toward the other end of the same, the interior of the spacer forming a first valve chamber, a radial space between the exterior of the spacer and the bore that forms a second valve chamber, said solenoid having a first inlet connected to the first chamber, the valve housing having a second inlet port connected to the second chamber, a first movable valve element in the first chamber and a second valve element in the second chamber, and a single solenoid in said solenoid housing for controlling movement of both valve elements.
- 22. In combination, a valve assembly and a wall member having first and second ports through which fluid from two sources may be ejected, said valve assembly having a first passage for fluid from one of said sources and having a second passage for fluid from the other of said sources, first and second valve elements in the valve assembly each engageable with the wall member, said second valve element being annular and surrounding said first valve element, the first element controlling flow of fluid from the first passage to the first port and the second element controlling flow of fluid from the second passage to the second port, and a single solenoid in said valve assembly for moving said valve elements out of engagement with said wall member for connecting each passage with a respective one of said ports.
Specification