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    • 3. 发明授权
    • Missile thrust system and valve with refractory piston cylinder
    • 导弹推力系统和带耐火活塞气缸的阀门
    • US06895991B2
    • 2005-05-24
    • US10216622
    • 2002-08-09
    • George T. Woessner
    • George T. Woessner
    • F02K9/56F16L7/00
    • F42B10/663Y10T137/7036
    • An improved pneumatic valve and a missile with an improved thrust directional valve. In one embodiment, a refractory material lining for a pneumatic valve enables better valve operation and better valve performance. A thin-wall cylindrical sleeve of rhenium or other suitable refractory metal is located inside a cylinder. A valve piston may then travel within the refractory sleeve with greater reliability and better operation. The refractory sleeve cylinder lining can be subject to high temperatures at a rapid rate and remain operational. Under such a hostile environmental, including corrosive/erosive environments created by the passage of hot propellant gasses, the refractory cylinder sleeve has a more reliable operational life and is lighter in weight than conventional valves made entirely of refractory metals.
    • 改进的气动阀和具有改进的推力方向阀的导弹。 在一个实施例中,用于气动阀的耐火材料衬里能够实现更好的阀操作和更好的阀性能。 铼或其他合适的难熔金属的薄壁圆柱形套筒位于圆筒内。 然后,阀活塞可以在耐用套筒内行进,具有更高的可靠性和更好的操作。 耐火衬套筒衬套可以快速地经受高温并保持工作。 在这种恶劣环境下,包括通过热推进剂气体产生的腐蚀性/腐蚀性环境,耐火材料缸套具有更可靠的使用寿命,重量轻于完全由难熔金属制成的阀门。
    • 6. 发明授权
    • Vehicle, lightweight pneumatic pilot valve and related systems therefor
    • 车辆,轻型气动先导阀及其相关系统
    • US06951317B2
    • 2005-10-04
    • US10234697
    • 2002-09-03
    • George T. WoessnerStephen G. AbelMark H. BakerDennis M. Alexander
    • George T. WoessnerStephen G. AbelMark H. BakerDennis M. Alexander
    • F41G7/00F42B15/01
    • F42B10/663
    • A vehicle, such as a missile, with a pilot valve system controls the vehicle's thrust valves despite a hostile propellant gas environment. The pilot valve system can have one or more pilot valves. Using refractory elements, the pilot valve ball reciprocates between a supply seat and a vent seat which is subject to the filtered inflow of propellant thrust gases. When open, the pilot valve allows the stray thrust gas to communicate to a control chamber which closes a poppet against a valve seat in the nozzle. When an associated solenoid closes the pilot valve by pushing the pilot valve ball against the supply seat, the control chamber is vented to ambient. The poppet may then travel into the cylinder bore and the nozzle is opened to exhaust propellant gases and exert lateral thrust on the vehicle. Certain nozzle thrust geometries provide useful vehicle guidance.
    • 尽管有敌意的推进剂气体环境,但具有先导阀系统的诸如导弹的车辆控制车辆的推力阀。 先导阀系统可以具有一个或多个先导阀。 使用耐火元件,先导阀球在供给座和排气座之间往复运动,该排气座受到推进剂推压气体的过滤流入。 当打开时,先导阀允许杂散推力气体与控制室连通,该控制室将提升阀封闭在喷嘴中的阀座上。 当相关螺线管通过将先导阀球推向供应座时关闭先导阀时,控制室被排放到环境中。 然后,提升阀可以进入气缸孔,打开喷嘴以排出推进剂气体并在车辆上施加横向推力。 某些喷嘴推力几何形状提供有用的车辆指导。
    • 7. 发明授权
    • Solid propellant burn rate, propellant gas flow rate, and propellant gas pressure pulse generation control system and method
    • 固体推进剂燃烧速率,推进剂气体流量和推进剂气体压力脉冲发生控制系统及方法
    • US07886519B2
    • 2011-02-15
    • US11683170
    • 2007-03-07
    • George T. WoessnerStephen G. AbelRonald A. PeckMark H. BakerDonald J. Christensen
    • George T. WoessnerStephen G. AbelRonald A. PeckMark H. BakerDonald J. Christensen
    • F02K9/00
    • F02K9/26
    • Systems and methods of controlling solid propellant burn rate, propellant gas pressure, propellant gas pressure pulse shape, and propellant gas flow rate, rely on pulse width modulation of a control valve duty cycle. A control valve that is movable between a closed position and a full-open position is disposed downstream of, and in fluid communication with, a solid propellant gas generator. The solid propellant in the solid propellant gas generator is ignited, to thereby generate propellant gas. The control valve is moved between the closed position and the full-open position at an operating frequency and with a valve duty cycle. The valve duty cycle is the ratio of a time the control valve is in the full-open position to a time it takes the valve to complete one movement cycle at the operating frequency. The valve duty cycle is controlled to attain a desired solid propellant burn rate, propellant gas pressure, propellant gas pressure pulse shape, and/or propellant gas flow rate.
    • 控制固体推进剂燃烧速率,推进剂气体压力,推进剂气体压力脉冲形状和推进剂气体流量的系统和方法依赖于控制阀占空比的脉宽调制。 可在关闭位置和全开位置之间移动的控制阀设置在固体推进剂气体发生器的下游并且与固体推进剂气体发生器流体连通。 固体推进剂气体发生器中的固体推进剂被点燃,从而产生推进剂气体。 控制阀在工作频率和阀门占空比下在关闭位置和全开位置之间移动。 阀门占空比是控制阀处于全开位置的时间与阀门在工作频率下完成一个运动循环所需的时间之比。 控制阀占空比以获得所需的固体推进剂燃烧速率,推进剂气体压力,推进剂气体压力脉冲形状和/或推进剂气体流速。
    • 9. 发明申请
    • SOLID PROPELLANT BURN RATE, PROPELLANT GAS FLOW RATE, AND PROPELLANT GAS PRESSURE PULSE GENERATION CONTROL SYSTEM AND METHOD
    • 固体推进剂燃烧速率,推进剂气体流量和推进剂气体压力脉动发生控制系统和方法
    • US20080216462A1
    • 2008-09-11
    • US11683170
    • 2007-03-07
    • George T. WoessnerStephen G. AbelRonald A. PeckMark H. BakerDonald J. Christensen
    • George T. WoessnerStephen G. AbelRonald A. PeckMark H. BakerDonald J. Christensen
    • F02K9/26
    • F02K9/26
    • Systems and methods of controlling solid propellant burn rate, propellant gas pressure, propellant gas pressure pulse shape, and propellant gas flow rate, rely on pulse width modulation of a control valve duty cycle. A control valve that is movable between a closed position and a full-open position is disposed downstream of, and in fluid communication with, a solid propellant gas generator. The solid propellant in the solid propellant gas generator is ignited, to thereby generate propellant gas. The control valve is moved between the closed position and the full-open position at an operating frequency and with a valve duty cycle. The valve duty cycle is the ratio of a time the control valve is in the full-open position to a time it takes the valve to complete one movement cycle at the operating frequency. The valve duty cycle is controlled to attain a desired solid propellant burn rate, propellant gas pressure, propellant gas pressure pulse shape, and/or propellant gas flow rate.
    • 控制固体推进剂燃烧速率,推进剂气体压力,推进剂气体压力脉冲形状和推进剂气体流量的系统和方法依赖于控制阀占空比的脉宽调制。 可在关闭位置和全开位置之间移动的控制阀设置在固体推进剂气体发生器的下游并且与固体推进剂气体发生器流体连通。 固体推进剂气体发生器中的固体推进剂被点燃,从而产生推进剂气体。 控制阀在工作频率和阀门占空比下在关闭位置和全开位置之间移动。 阀门占空比是控制阀处于全开位置的时间与阀门在工作频率下完成一个运动循环所需的时间之比。 控制阀占空比以获得所需的固体推进剂燃烧速率,推进剂气体压力,推进剂气体压力脉冲形状和/或推进剂气体流速。