| 摘要 |
<p>1,206,731. Valves. MOOG Inc. 7 Jan., 1969 [11 Jan., 1968], No. 1058/69. Heading F2V. A valve usable on an aero-space vehicle to control flow of propellent gas to a pail of oppositely - directed tangential roll - control nozzles has a vane 56 clamped to the end of a shaft 53 and co-operable with nozzle seats 49 to control gas flow from chamber 44 to nozzles 12, 13. Shaft 53 extends through torsion tube 66 and carries a radial arm 55 whose end 112 lies between heads 108, 105 on rods 91, 95 connected to the armatures 90, 94 of solenoids 86, 92. Heavy and light springs 106, 111 bias the vane to a central position when both solenoids are deenergized. Energization of either solenoid causes the vane to close that nozzle opposite the energized solenoid. The total available exit area from chamber 44 remains constant regardless of the vane position. A transducer 101 indicates the valve position. The torsion tube stiffness is chosen to match the expected Bernoulli forces tending to accelerate closure of that nozzle being closed. Electron beam welding secures the tube to the shaft at 69 and the shaft to arm 55. Restrictive orifices can be located in the nozzles or in the duct leading to chamber 44.</p> |
