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1. 发明授权

US5957982A Method and system for space navigation 失效
标题翻译：空间导航方法和系统
公开(公告)号：US5957982A
公开(公告)日：1999-09-28
申请号：US135884
申请日：1998-08-18
申请人： George C. Hughes , Michael J. Wehner , Mark L. Hanson , D. Hobson Lane , Paul A. Lavoie , Warren H. Taylor , Bryan H. Kang , Paul Steiner , Arnold J. Galloway , Michael Busby
发明人： George C. Hughes , Michael J. Wehner , Mark L. Hanson , D. Hobson Lane , Paul A. Lavoie , Warren H. Taylor , Bryan H. Kang , Paul Steiner , Arnold J. Galloway , Michael Busby
IPC分类号： G06F17/10 , G06F15/00
CPC分类号： G06F17/10
摘要： A method that allows a space vehicle to determine navigation information represented by the contents of a state vector. The method includes the steps of intermittently receiving navigation signals, initializing the state vector with an estimate of the navigation information, and generating a predicted state vector that represents the predicted values for the navigation information after a predetermined time increment in the future. The method further determines whether a navigation signal has been received within a predetermined window of time from a navigation beacon. If a navigation signal has been received, the method updates the state vector and the contents of the state vector are propagated forward in time to provide an estimate of the navigation information after a predetermined time increment. In some instances, however, a navigation signal is not received within the predetermined window of time. In such situations, the method simply propagates the contents of the predicted state vector forward in time. Thus, the predicted state vector maintains an estimate of the current navigation information even in the absence of a navigation signal.
摘要翻译：一种允许航天器确定由状态向量的内容表示的导航信息的方法。该方法包括以下步骤：间歇地接收导航信号，利用导航信息的估计来初始化状态向量，并且在将来经过预定的时间增量之后生成表示导航信息的预测值的预测状态向量。该方法还确定在导航信标的预定窗口内是否已经接收到导航信号。如果已经接收到导航信号，则该方法更新状态向量，并且状态向量的内容在时间上向前传播，以在预定时间增量之后提供对导航信息的估计。然而，在一些情况下，在预定的时间窗口内没有接收到导航信号。在这种情况下，该方法简单地将预测状态向量的内容及时传播。因此，即使在不存在导航信号的情况下，预测状态矢量也保持当前导航信息的估计。

2. 发明授权

US3989060A Gas pressure regulator 失效
公开(公告)号：US3989060A
公开(公告)日：1976-11-02
申请号：US581782
申请日：1975-05-29
申请人： George C. Hughes
发明人： George C. Hughes
IPC分类号： G05D16/06 , F16K17/34
CPC分类号： G05D16/0694 , Y10T137/7754 , Y10T137/783 , Y10T137/8704
摘要： There is disclosed a gas pressure regulator having valving means comprising an orifice sleeve slidably mounted in a bushing which is located in an aperture in a dividing wall in the regulator casing located between the inlet and outlet means of the regulator, for movement toward and from a stationary upstream valve seat carried by the bushing to regulate the flow of fuel gas from the inlet through the regulator to the outlet thereof. To monitor the flow of gas through the meter the bushing has a valve seat adapted to be engaged by a valve operated by a valve stem to control the pressure of the gas at the outlet of the regulator and to shut off the flow of gas into the diaphragm chamber when the pressure of the gas exceeds a predetermined value and the regulating valve for some cause fails to stop the flow of gas. The bushing with the pressure regulating valve seat thereon and the orifice sleeve may be conveniently inserted into the passage in the dividing wall in the regulator as a unit, the bushing being slidable into the passage through the dividing wall between the inlet and outlet means of the valve housing and may be secured thereto by a single screw threaded into a portion of the valve housing. The valve stem makes abutting engagement with the orifice sleeve and thus avoids the necessity of securing the valve stem to the orifice sleeve when assembling the regulator. The downstream end of the bushing is provided with a segmental lip which acts as a loading ring to produce boost in the regulator. The circumference of the portion of the sleeve engaging an obturating ring carried by the bushing and of an upstream orifice of the orifice sleeve are substantially equal and provision is made so that the pressure of the gas opposing the downstream movement of the orifice sleeve is the same as that opposing the upstream movement of the orifice sleeve so that the orifice sleeve is balanced and the pressure of the gas in the usual piping between the regulator and the connected gas appliances is substantially uniform regardless of variations in the rate of flow of the gas within practical limits.

3. 发明授权

US4176677A Relay pilot regulator 失效
标题翻译：继电器导频调节器
公开(公告)号：US4176677A
公开(公告)日：1979-12-04
申请号：US859041
申请日：1977-12-09
申请人： George C. Hughes
发明人： George C. Hughes
IPC分类号： G05D16/06 , G05D16/16
CPC分类号： G05D16/0688 , G05D16/163 , Y10T137/7762 , Y10T137/86919 , Y10T137/87225
摘要： A relay pilot regulator for use in combination with a main regulator in a gas distribution system, the gas distribution system including an inlet conduit supplying gas at an inlet pressure and an outlet conduit for delivering gas at a reduced outlet pressure, the main regulator including a main valve controlling gas flow from the inlet conduit to the outlet conduit and thereby also controlling the outlet pressure, a main regulator diaphragm mechanically linked to the main valve and a loading chamber the loading pressure in which acts on the main regulator diaphragm wherein the loading pressure positions the main regulator diaphragm and the main valve, the relay pilot regulator providing and controlling the loading pressure in the loading chamber. The relay pilot regulator includes a relay pilot regulator diaphragm adjustably spring biased against the outlet pressure for movement in response to changes therein, and is characterized by a slideably mounted unloading valve for bleeding pressure from the loading chamber and a loading valve slideably mounted to the unloading valve for controlling delivery of gas at the inlet pressure to the loading chamber. The unloading valve and loading valve share the same mechanical linkage, which is preferably a pivotally mounted L-shaped lever linkage connecting the loading valve and unloading valve to the relay pilot regulator diaphragm. The relay pilot regulator has quick response to changes in the outlet pressure and acts to adjust the loading pressure to restore the outlet pressure to a given desired level.
摘要翻译：一种用于与气体分配系统中的主调节器组合使用的继电器先导调节器，所述气体分配系统包括在入口压力下供应气体的入口管道和用于在降低的出口压力下输送气体的出口管道，所述主调节器包括主阀控制从入口管道到出口管道的气体流，从而也控制出口压力;主调节器隔膜，机械地连接到主阀和加载室，负载压力作用在主调节器隔膜上，其中负载压力定位主调节器膜片和主阀，继电器先导调节器提供和控制装载室中的负载压力。继电器先导调节器包括可响应于出口压力偏置的可调节弹簧的继电器先导调节器膜片，用于响应其中的变化而移动，并且其特征在于可滑动地安装的卸载阀，用于从装载室排出压力，以及可滑动地安装到卸载用于控制在装载室的入口压力下输送气体的阀。卸载阀和加载阀共享相同的机械联动装置，其优选地是将加载阀和卸载阀连接到继电器先导调节器膜片的枢转安装的L形杠杆连杆。继电器先导调节器对出口压力的变化具有快速响应，并且用于调节负载压力以将出口压力恢复到给定的期望水平。

4. 发明授权

US4069839A Gas pressure regulator 失效
标题翻译：气压调节器
公开(公告)号：US4069839A
公开(公告)日：1978-01-24
申请号：US687301
申请日：1976-05-14
申请人： George C. Hughes
发明人： George C. Hughes
IPC分类号： G05D16/06 , F16K31/12
CPC分类号： G05D16/0686 , Y10T137/783 , Y10T137/7831 , Y10T137/86381
摘要： There is disclosed herein a diaphragm-operated gas regulator in which the diaphragm and valve operating means are protected against being damaged when subjected to excessive force resulting from excessively high pressure in the gas chamber of the regulator due to malfunctioning of the regulator.
摘要翻译：这里公开了一种隔膜操作气体调节器，其中隔膜和阀操作装置由于调节器的故障而受到由调压器的气室中的过高压力而产生的过大的压力时被保护而不被损坏。

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