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21. 发明授权

US4787419A Apparatus for controlling the pressure of gases flowing through a conduit 失效
标题翻译：用于控制流过导管的气体的压力的装置
公开(公告)号：US4787419A
公开(公告)日：1988-11-29
申请号：US52947
申请日：1987-05-22
申请人： Bryan A. Megee , James D. Whiteside, II
发明人： Bryan A. Megee , James D. Whiteside, II
IPC分类号： F16K17/20 , G05D7/01 , F15D1/02
CPC分类号： F16K17/20 , G05D7/01
摘要： An apparatus for the control of velocity and pressure of hot gases flowing through a conduit wherein generally spherically shaped objects of refractory material are disposed within such conduit during the operation thereof to provide a constriction of the cross-sectional area of the conduit through which the gases are flowing. A particular embodiment of the apparatus employed in the present invention comprises a pair of generally spherically shaped refractory objects secured together by means of a length of flexible steel cable.
摘要翻译：用于控制流过导管的热气体的速度和压力的装置，其中在其操作期间将这些通常为球形的耐火材料物体设置在这样的管道内，以提供导管的横截面积的收缩，通过该管道的气体正在流动用于本发明的装置的一个具体实施例包括通过一段柔性钢缆固定在一起的一对通常为球形的耐火物品。

22. 发明授权

US4777383A Electrically controlled variable pressure pneumatic circuit 失效
标题翻译：电控变压气动回路
公开(公告)号：US4777383A
公开(公告)日：1988-10-11
申请号：US056916
申请日：1987-06-01
申请人： Michael V. Waller , David M. Palance
发明人： Michael V. Waller , David M. Palance
IPC分类号： F15B11/06 , G05D16/20 , F16K17/20
CPC分类号： G05D16/2053 , Y10T137/7761 , Y10T137/8326
摘要： A pneumatic circuit pressure control device including an electronic comparator for comparing a transducer generated pressure signal from the pneumatic circuit and a desired pressure signal from a desired pressure input generator. The comparison circuit selectively actuates a solenoid-actuated valve which controls the pressure in the pneumatic circuit. Preferably, the solenoid of the solenoid-actuated valve produces an electromagnetic field for electromagnetic induction of a circuit which oscillates the solenoid-actuated valve to produce a variable orifice-like effect when small changes in pressure are demanded by the comparator circuit.

23. 发明授权

US4679579A Method and apparatus for controlling the pressure of gases flowing through a conduit 失效
标题翻译：用于控制流过导管的气体的压力的方法和装置
公开(公告)号：US4679579A
公开(公告)日：1987-07-14
申请号：US828482
申请日：1986-02-12
申请人： Bryan A. Megee , James D. Whiteside, II
发明人： Bryan A. Megee , James D. Whiteside, II
IPC分类号： F16K17/20 , G05D7/01 , G05D7/00
CPC分类号： F16K17/20 , G05D7/01 , Y10T137/0391 , Y10T137/4891
摘要： Method and apparatus for the control of velocity and pressure of hot gases flowing through a conduit wherein generally spherically shaped objects of refractory material are disposed within such conduit during the operation thereof to provide a constriction of the cross-sectional area of the conduit through which the gases are flowing. A particular embodiment of apparatus employed in the present invention comprises a pair of generally spherically shaped refractory objects secured together by means of a length of steel cable.
摘要翻译：用于控制流过导管的热气体的速度和压力的方法和装置，其中耐火材料的通常为球形的物体在其操作期间设置在这种导管内，以提供导管的横截面积的缩小，气体流动。本发明中使用的装置的一个具体实施例包括通过一定长度的钢丝绳固定在一起的一对通常为球形的耐火材料。

24. 发明授权

US4543977A Valves 失效
标题翻译：阀门
公开(公告)号：US4543977A
公开(公告)日：1985-10-01
申请号：US545892
申请日：1983-10-27
申请人： Ronnie A. Arav
发明人： Ronnie A. Arav
IPC分类号： D21F3/06 , D21G1/00 , F15B5/00 , F16K17/02 , F16K17/20 , G05D16/02 , G05D16/10 , G05D16/18
CPC分类号： G05D16/10 , G05D16/02 , Y10T137/262
摘要： A balance valve for maintaining two fluid pressure systems at a predetermined pressure relative to one another. The valve comprises a piston slidably received within a bore and subjected on opposite ends to the pressure in the two systems. Each of the two systems is provided with a relief line whose communication with the associated system is controlled by movement of the piston such that any imbalance of forces acting on the piston causes the appropriate relief line to be opened to balance out the forces. The ports controlled by the piston and communicating with the relief lines are triangular in shape. In one embodiment a respective spring acts on each end of the piston to determine the relative pressure levels in the two systems. In another embodiment means is provided to resist movement of the piston in response to rapid pressure fluctuations.
摘要翻译：一种用于将两个流体压力系统相对于彼此保持在预定压力的平衡阀。阀包括可滑动地容纳在孔中并且在两个系统中的压力的相对端上承受的活塞。两个系统中的每一个设置有救生线，其与相关联的系统的连通通过活塞的运动来控制，使得作用在活塞上的任何不平衡的力导致适当的救生线打开以平衡力。由活塞控制并与浮雕线连通的端口形状为三角形。在一个实施例中，相应的弹簧作用在活塞的每个端部上以确定两个系统中的相对压力水平。在另一个实施例中，提供了用于抵抗活塞响应于快速压力波动的运动的装置。

25. 发明授权

US4494563A Fluid safety valve 失效
标题翻译：流体安全阀
公开(公告)号：US4494563A
公开(公告)日：1985-01-22
申请号：US441311
申请日：1982-11-12
申请人： James F. N. Seiler, Jr.
发明人： James F. N. Seiler, Jr.
IPC分类号： F16K17/20 , F16K31/36 , F16K17/00
CPC分类号： F16K17/20 , Y10T137/7783 , Y10T137/7822 , Y10T137/7847
摘要： A typical embodiment of the invention provides a means for protecting delte instruments from damage. A flexible membrane separates two chambers in which, during ordinary operation, the fluid pressures are the same. One of the two chambers also serves as a fluid conduit in the system. Pressure loss in the system causes the higher pressure chamber to flex the membrane which closes a port in the fluid conduit chamber, thereby preventing further system pressure loss and consequent equipment damage. The membrane, moreover, can have a small bleed to permit gradual, dampened fluid pressure release.
摘要翻译：本发明的典型实施例提供了一种用于保护微妙仪器免受损害的装置。柔性膜分离两个腔室，其中在正常操作期间，流体压力相同。两个室中的一个也用作系统中的流体导管。系统中的压力损失导致较高压力室挠曲封闭流体导管室中的端口的膜，从而防止进一步的系统压力损失和随之而来的设备损坏。此外，膜可以具有小的渗流以允许逐渐的，阻尼的流体压力释放。

26. 发明授权

US4418709A Unloading valve for hi-lo-hydraulic system 失效
标题翻译：高液压系统卸载阀
公开(公告)号：US4418709A
公开(公告)日：1983-12-06
申请号：US323001
申请日：1981-11-19
申请人： Arthur E. Hirsch
发明人： Arthur E. Hirsch
IPC分类号： G05D16/16 , G05D16/10 , F16K17/20
CPC分类号： G05D16/166 , Y10T137/2617 , Y10T137/7766
摘要： An unloading valve for satisfying the requirements of a hydraulic system while minimizing transient pressure fluctuations. When the hydraulic system requires full fluid flow, fluid under pressure passes through the valve for discharge to the hydraulic system. If the system does not require full fluid flow, the excess fluid is automatically discharged from the unloading valve to a reservoir. Incoming fluid under pressure is communicated against one end of a locking spool for causing it to operate against an unloading pin. An orifice plate is mounted within the valve body adjacent to the unloading pin with the opening through the orifice plate being closed by a spring biased unloading poppet. A relief poppet is provided in the valve body and incoming fluid under pressure into the interior of the relief poppet is communicated to a fluid chamber between the seated end of the unloading poppet and a mounting plug holding the unloading pin. The hydraulic system pressure increases until the unloading poppet opens slightly permitting fluid under pressure to escape as pilot flow to the reservoir. A further increase in fluid pressure in the system causes the relief poppet to unseat thereby permitting drainage flow to the reservoir. A point is reached where the system pressure shifts the locking spool against the unloading pin and unloading poppet until the unloading poppet is fully opened and the relief poppet is moved away from its seat to the limit of its travel. If the hydraulic system pressure drops, the locking spool is shifted back thereby reloading the valve until the pressure in the system again rises to the unload pressure. Thus, the unloading pin provides for substantially reduced oscillations in the operation of the unloading valve as compared to conventional ball-seat arrangements.
摘要翻译：一种用于满足液压系统要求同时尽量减少瞬时压力波动的卸载阀。当液压系统需要充分的流体流动时，压力下的流体通过阀门排放到液压系统。如果系统不需要全流体流动，则过剩的流体将自动从卸载阀排出到储存器。在压力下的进入流体与锁定阀芯的一端相通，以使其相对于卸载销进行操作。孔板安装在阀体内，与卸载销相邻，通过孔板的开口被弹簧偏压的卸载提升阀封闭。救生提升阀设置在阀体内，压力下的进入流体进入溢流提升阀的内部，与卸载提升阀的就座端和固定卸载销的安装塞之间的流体室相通。液压系统压力增加，直到卸载提升阀开启稍微允许压力下的流体作为先导流向储存器而逸出。系统中的流体压力的进一步增加导致释放提升阀离开，从而允许排放到储存器的流体。达到一个点，其中系统压力将锁定阀芯相对于卸载销和卸载提升阀移动，直到卸载提升阀完全打开并且释放提升阀从其座位移动到其行程的极限。如果液压系统压力下降，则锁定阀芯将向后移动，从而重新加载阀门，直到系统中的压力再次升高到卸载压力。因此，与传统的球座装置相比，卸载销在卸载阀的操作中提供了显着减小的振荡。

27. 发明授权

US4276901A High flow pressure relief valve 失效
标题翻译：高流量泄压阀
公开(公告)号：US4276901A
公开(公告)日：1981-07-07
申请号：US79378
申请日：1979-09-27
申请人： Jerry L. Lyons
发明人： Jerry L. Lyons
IPC分类号： F16K17/168 , F16K17/20
CPC分类号： F16K17/168 , Y10T137/7738 , Y10T137/7742 , Y10T137/7923 , Y10T137/7931
摘要： A fluid pressure relief valve provides automatic venting of a high pressure source to an area of lower pressure in response to pressure build-up of the source. The valve includes a valve body in which a recess is provided, a passage providing communication between one end of the recess and the source. A poppet is oriented for movement with respect to the recess and includes a sealing element adapted to close the other end of the recess by sealing engagement with the valve body. A spring urges the poppet toward sealing engagement. The poppet has ports proximate the sealing element which are covered when the sealing engagement is maintained but are uncovered progressively with movement of the poppet out of sealing engagement. If the source pressure exceeds a predetermined threshold level, the poppet is driven increasingly away from the sealing engagement with increase in pressure of the source for progressively uncovering the ports in response to dynamic impact upon the poppet by fluid flow through the valve. The fluid flow exhibits substantially no divergence or pressure drop within the valve to provide high volumetric flow therethrough.
摘要翻译：流体压力释放阀响应于源的压力建立，提供高压源自动排放到较低压力的区域。所述阀包括阀体，所述阀体设置有凹部，所述阀体设置在所述凹部的一端和所述源之间的连通。提升头被定向成相对于凹部移动，并且包括适于通过与阀体密封接合来闭合凹部的另一端的密封元件。一个弹簧促使提升阀密封接合。提升头具有邻近密封元件的端口，当密封接合被保持时，该端口被覆盖，但是随着该提升阀的密封接合的移动而逐渐被覆盖。如果源压力超过预定阈值水平，则随着源的压力的增加，提升阀被越来越远地从密封接合中驱动，以便响应于通过阀的流体流动对提升阀的动态冲击而逐渐露出端口。流体流动在阀内基本上没有表现出发散或压降，从而提供高的体积流量。

28. 发明授权

US4202368A Safety valve or blowout preventer for use in a fluid transmission conduit 失效
标题翻译：用于流体输送管道的安全阀或防喷器
公开(公告)号：US4202368A
公开(公告)日：1980-05-13
申请号：US886204
申请日：1978-03-13
申请人： Neil H. Akkerman , Kip B. Goans
发明人： Neil H. Akkerman , Kip B. Goans
IPC分类号： E21B34/16 , F16K17/20
CPC分类号： E21B34/16 , Y10T137/7785
摘要： Apparatus is provided for connection along a conduit for free flowing transmission of fluids in a first direction and for selective control of fluid flow in a second direction. The apparatus provides means whereby fluid flow in the second direction in excess of a predeterminable rate of the fluid flow permits a fixed volume displacement of fluid within the conduit without limitation upon the predeterminable rate of fluid flow. The apparatus also defines second means whereby fluid flow in the second direction and within the predeterminable rate of fluid flow permits an unrestricted volume displacement of the fluid through the conduit.
摘要翻译：提供了用于沿着管道连接的装置，用于沿第一方向自由流动的流体传输并且用于选择性地控制在第二方向上的流体流动。该装置提供了这样的装置，其中流体在第二方向上的流动超过流体流动的可预定速率允许流体在导管内的固定容积位移，而不限于流体流动的可预定速率。该装置还限定了第二装置，其中在第二方向上的流体流动并且在可预定的流体流速之内允许流体通过导管的不受限制的体积位移。

29. 发明授权

US3965919A Hydraulic safety valve base 失效
标题翻译：液压安全阀座
公开(公告)号：US3965919A
公开(公告)日：1976-06-29
申请号：US509647
申请日：1974-09-26
申请人： Robert E. McGarvey , Donald L. Gitthens
发明人： Robert E. McGarvey , Donald L. Gitthens
IPC分类号： F15B20/00 , F16K17/20 , F16K11/07
CPC分类号： F15B20/005 , F16K17/20 , Y10T137/2557
摘要： The present invention relates to a safety valve for use with a hydraulic system as is utilized in raising loads such as with a front-end loader, a fork truck, snorkel truck, and the like. The safety valve provides a spring actuated plunger which acts to trap hydraulic fluid within a hydraulic cylinder to retain a load in its raised position in the event a hydraulic feed line or the like should break.
摘要翻译：本发明涉及一种与液压系统一起使用的安全阀，用于提升负载，如前端装载机，叉车，浮潜车等。安全阀提供弹簧致动的柱塞，其用于在液压缸内捕获液压流体，以在液压进料管线等破裂的情况下将负载保持在其升高位置。

30. 发明授权

US3945394A Pressure-responsive valve 失效
标题翻译：压力响应阀
公开(公告)号：US3945394A
公开(公告)日：1976-03-23
申请号：US560575
申请日：1975-03-21
申请人： Arthur Francis Sullivan , Frank Howard Brockett, III , Lewis John Harthan, III
发明人： Arthur Francis Sullivan , Frank Howard Brockett, III , Lewis John Harthan, III
IPC分类号： F16K17/18 , F16K17/00 , F16K17/04 , F16K17/20 , F16K31/18
CPC分类号： F16K17/0406 , F16K31/18 , Y10T137/7426 , Y10T137/778 , Y10T137/8013
摘要： Dual function valve for controlling flow of liquids or mixtures of liquids and solids has a movable seat for relief of excessive negative pressure and a buoyant gate for emergency discharge under excessive loads of solids.
摘要翻译：用于控制液体或液体和固体混合物流动的双功能阀具有用于缓解过度负压的可移动阀座和用于在过度固体载荷下紧急排放的浮力闸门。

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