公开(公告)号：US20130115540A1

公开(公告)日：2013-05-09

申请号：US13288482

申请日：2011-11-03

申请人： Steven R. Falta ,  Rainer Pechtold ,  Daniel C. Di Fiore ,  Donald H. Keskula ,  Matthew A. Lang ,  Michael Leykauf ,  Joseph N. Lovria ,  Oliver Maier

发明人： Steven R. Falta ,  Rainer Pechtold ,  Daniel C. Di Fiore ,  Donald H. Keskula ,  Matthew A. Lang ,  Michael Leykauf ,  Joseph N. Lovria ,  Oliver Maier

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04201 ,  H01M8/04388 ,  H01M8/04425 ,  H01M8/0494

摘要： A system and method for controlling hydrogen gas flow to an anode side of a fuel cell stack using a pressure regulator in the event that an injector that normally injects the hydrogen gas into the fuel cell stack has failed in a stuck open position. During normal operation, the control of the injector is determined based on the pressure of an anode sub-system and the position of the pressure regulator is determined based on a supply pressure between the pressure regulator and the injector. If it is determined that the injector is stuck in an open position, then the position of the pressure regulator is controlled to the anode pressure instead of the supply pressure. If the pressure regulator is an electrical pressure regulator, then it is pulsed to mimic normal system operation. Alternately, another valve, such as a shut-off valve, can be employed to provide the flow pulsing.

摘要翻译： 在通常将氢气注入到燃料电池堆中的喷射器处于卡住打开位置的情况下，使用压力调节器控制向燃料电池堆的阳极侧的氢气流动的系统和方法。 在正常操作期间，基于阳极子系统的压力来确定喷射器的控制，并且基于压力调节器和喷射器之间的供应压力来确定压力调节器的位置。 如果确定喷射器被卡在打开位置，则压力调节器的位置被控制到阳极压力而不是供应压力。 如果压力调节器是电压调节器，则它被脉冲以模拟正常的系统操作。 或者，可以使用另一个阀，例如截止阀来提供流动脉冲。

公开(公告)号：US20100101666A1

公开(公告)日：2010-04-29

申请号：US12259454

申请日：2008-10-28

申请人： Rainer Pechtold ,  Demitri A. Podorashi ,  Hans Weidner ,  Wolfgang Markard

发明人： Rainer Pechtold ,  Demitri A. Podorashi ,  Hans Weidner ,  Wolfgang Markard

IPC分类号： G05D16/04 ,  G05D16/10 ,  F16K31/122

CPC分类号： G05D16/04 ,  F16K17/30 ,  F16K31/1221 ,  F16K31/1223 ,  F16K31/1226 ,  G05D16/103 ,  Y10T137/7793

摘要： A pressure regulator for a hydrogen storage system, wherein the pressure regulator is adapted to operate at temperatures below −50° C., while minimizing the need for separate sealing elements and O-rings. The pressure regulator includes a main body including an inner cavity bounded by an interior wall, a piston disposed in the inner cavity, the piston including a first channel disposed adjacent a first portion, wherein the first portion is adapted to cooperate with the interior wall to form a seal between the piston and the interior wall, a first biasing device disposed in the first channel, wherein the first biasing device is adapted to exert a force on the first portion of the piston to form a seal between the first portion and the interior wall, and an end cap coupled to the main body thereby enclosing the piston to form an outlet pressure chamber.

摘要翻译： 一种用于氢存储系统的压力调节器，其中压力调节器适于在低于-50℃的温度下操作，同时最小化对分开的密封元件和O形环的需要。 压力调节器包括主体，主体包括由内壁限定的内腔，设置在内腔中的活塞，活塞包括邻近第一部分设置的第一通道，其中第一部分适于与内壁配合 在所述活塞和所述内壁之间形成密封件，设置在所述第一通道中的第一偏置装置，其中所述第一偏压装置适于在所述活塞的所述第一部分上施加力以在所述第一部分和所述内部之间形成密封 壁和端盖，其联接到主体，从而包围活塞以形成出口压力室。

公开(公告)号：US07575020B2

公开(公告)日：2009-08-18

申请号：US11467579

申请日：2006-08-28

申请人： Rainer Pechtold

发明人： Rainer Pechtold

IPC分类号： G05D16/02

CPC分类号： G05D16/10 ,  Y10T137/7795 ,  Y10T137/7825 ,  Y10T137/7826 ,  Y10T137/8704 ,  Y10T137/87378

摘要： A pressure regulator is disclosed wherein multiple valve stages are used to accommodate low flow rates and to maximize a turn-down ratio of the regulator.

摘要翻译： 公开了一种压力调节器，其中使用多个阀级来适应低流量并使调节器的调节比最大化。

公开(公告)号：US20070089792A1

公开(公告)日：2007-04-26

申请号：US11640086

申请日：2006-12-15

申请人： Rainer Pechtold

发明人： Rainer Pechtold

IPC分类号： F16K11/044

CPC分类号： F16K1/302 ,  F16K1/303 ,  F16K1/44 ,  F16K31/0603 ,  F16K31/0606 ,  Y10T137/86759 ,  Y10T137/86895

摘要： In accordance with the teachings of the present invention, a shut-off valve is disclosed that has particular application for opening and closing a high pressure compressed gas storage tank. In one embodiment, the valve includes a single sealing member and a bellows. High pressure is provided at inlet port to one side of the sealing member and a bellows chambers so that both sides of the sealing member are at high pressure to provide equalization. A spring bias is the sealing member against a valve seat in one direction. An electromagnetic coil is energized to draw the sealing member away from the valve seat against the bias of the spring.

摘要翻译： 根据本发明的教导，公开了一种特别用于打开和关闭高压压缩气体储罐的截止阀。 在一个实施例中，阀包括单个密封构件和波纹管。 在密封构件的一侧的入口处设置有高压，并且在波纹管室中设置高压，使得密封构件的两侧处于高压以提供均衡。 弹簧偏压是在一个方向上抵靠阀座的密封构件。 电磁线圈被激励以克服弹簧的偏压将密封构件拉离阀座。

公开(公告)号：US20060283510A1

公开(公告)日：2006-12-21

申请号：US11155184

申请日：2005-06-17

申请人： Rainer Pechtold

发明人： Rainer Pechtold

IPC分类号： F16K11/044

CPC分类号： F16K1/302 ,  F16K1/303 ,  F16K1/44 ,  F16K31/0603 ,  F16K31/0606 ,  Y10T137/86759 ,  Y10T137/86895

摘要： A shut-off valve that has particular application for opening and closing a compressed hydrogen storage tank. In one embodiment, the valve includes two valve sealing members where one side of one valve sealing member is on the high pressure side of the valve and an opposing side of the other valve sealing member is on the high pressure side of the valve. Therefore, the pressure applied to the two valve sealing members offset each other so that less force is required to open the valve against the high pressure. In another embodiment, one of the sealing members is replaced with a bellows.

摘要翻译： 一种特别用于打开和关闭压缩储氢罐的截止阀。 在一个实施例中，阀包括两个阀密封构件，其中一个阀密封构件的一侧位于阀的高压侧，另一个阀密封构件的相对侧位于阀的高压侧。 因此，施加到两个阀密封构件的压力彼此抵消，从而需要较小的力来打开阀来抵抗高压。 在另一个实施例中，一个密封构件被波纹管代替。

公开(公告)号：US20060260692A1

公开(公告)日：2006-11-23

申请号：US11132982

申请日：2005-05-19

申请人： Rainer Pechtold

发明人： Rainer Pechtold

IPC分类号： G05D16/06

CPC分类号： G05D16/0672 ,  G05D16/0605 ,  G05D16/0663 ,  G05D16/0694 ,  H01M8/04089 ,  H01M8/0438 ,  H01M8/04753 ,  H01M8/04776 ,  Y10T137/7826 ,  Y10T137/783 ,  Y10T137/8733 ,  Y10T137/8741 ,  Y10T137/87491

摘要： A pressure regulator that has particular application for an anode input side of a fuel cell system to provide the desired large turn-down ratio. The pressure regulator includes at least two valves positioned in parallel where the first valve is smaller than the second valve. The first valve is opened and closed and the second valve is maintained closed at low flow rates. Once the flow rate is high enough, the first valve is maintained completely open, and the second valve is opened and closed to control the flow at high flow rates.

摘要翻译： 一种压力调节器，其特别适用于燃料电池系统的阳极输入侧，以提供期望的大的降压比。 压力调节器包括至少两个平行定位的阀，其中第一阀小于第二阀。 第一个阀被打开和关闭，第二个阀在低流速下保持关闭。 一旦流量足够高，则第一阀保持完全打开，并且第二阀被打开和关闭以在高流速下控制流量。

公开(公告)号：US08454058B2

公开(公告)日：2013-06-04

申请号：US12852929

申请日：2010-08-09

申请人： Rainer Pechtold ,  Jorg Schulze

发明人： Rainer Pechtold ,  Jorg Schulze

IPC分类号： F16L19/06

CPC分类号： F16L19/0206 ,  F16L19/0218 ,  F16L19/0286

摘要： High pressure hydrogen fittings and methods of sealing a pipe to a valve body. In one embodiment, the high pressure hydrogen fitting includes a pipe having flange near one end; a nut surrounding the pipe on a low pressure side of the flange, the nut having threads mating with threads on a valve body; a lip seal surrounding the pipe on a high pressure side of the flange, the flange supporting the lip seal, the lip seal pointing toward the valve body, the lip seal having a cylindrical sealing surface, the cylindrical seal surface engaging the valve body; wherein when the pipe containing hydrogen is connected to a valve body, a seal is maintained at a pressure of up to about 87.5 MPa.

摘要翻译： 高压氢配件和密封管道到阀体的方法。 在一个实施例中，高压氢配件包括在一端附近具有凸缘的管; 在法兰的低压侧围绕管道的螺母，螺母具有与阀体上的螺纹配合的螺纹; 围绕凸缘的高压侧的管道的唇形密封件，支撑唇形密封件的凸缘，指向阀体的唇形密封件，唇形密封件具有圆柱形密封表面，圆柱形密封表面接合阀体; 其中当含有氢的管连接到阀体时，密封件保持在高达约87.5MPa的压力。

公开(公告)号：US20090242043A1

公开(公告)日：2009-10-01

申请号：US12361818

申请日：2009-01-29

申请人： Leonid C. Lev ,  Dimitri A. Podorashi ,  Michael J. Lukitsch ,  Rainer Pechtold ,  Hans Weidner

发明人： Leonid C. Lev ,  Dimitri A. Podorashi ,  Michael J. Lukitsch ,  Rainer Pechtold ,  Hans Weidner

IPC分类号： G05D16/06

CPC分类号： H01M8/04201 ,  G05D16/0619 ,  Y10T137/7793 ,  Y10T137/7808 ,  Y10T137/7835 ,  Y10T137/7836

摘要： Hydrogen gas flow from high pressure storage to a lower pressure hydrogen-using device is managed using one or more axial flow pressure regulators comprising a cup-shaped housing with an inlet for high pressure hydrogen gas at one end of the flow axis and a closure with a low pressure hydrogen outlet at the other end of the flow axis. A piston head with a piston stem are aligned on the flow axis and a hydrogen flow passage is formed up the stem and through the piston head to the hydrogen flow outlet. One or more combinations of a corrugated tubular bellows (or like expansive sealing vessel) with static seals attaching one bellows end to the piston stem or head and the other bellows end to the housing or closure are used to accommodate axial movement of the piston while isolating and containing hydrogen gas flow from a high pressure chamber at a flow entrance to the piston stem to a low hydrogen pressure chamber at the piston head and closure outlet.

摘要翻译： 使用一个或多个轴向流量调节器来管理从高压储存器到低压氢气使用装置的氢气流，所述轴流式流量调节器包括具有在流动轴线的一端具有用于高压氢气的入口的杯形壳体，以及具有 在流动轴的另一端的低压氢出口。 具有活塞杆的活塞头在流动轴线上对准，并且氢气流动通道形成在杆上并且通过活塞头到达氢气出口。 波纹管状波纹管（或类似膨胀密封容器）的一个或多个组合，其具有将一个波纹管端部附接到活塞杆或头部的静态密封件以及将另一个波纹管端部连接到壳体或封闭件的静态密封件用于容纳活塞的轴向运动，同时隔离 并且包含来自在活塞杆的流入口处的高压室的氢气流到活塞头和封闭出口处的低氢压力室。

公开(公告)号：US07553569B2

公开(公告)日：2009-06-30

申请号：US11106334

申请日：2005-04-14

申请人： Robert Schaefer ,  Rainer Pechtold ,  Thorsten Rohwer

发明人： Robert Schaefer ,  Rainer Pechtold ,  Thorsten Rohwer

IPC分类号： H01M8/00

CPC分类号： H01M8/04097 ,  H01M8/04089 ,  H01M8/04104 ,  H01M8/04111 ,  H01M8/04201 ,  H01M8/249 ,  H01M2008/1095

摘要： A fuel cell system utilizes at least one flow restricting device to vary the stoichiometric quantity of cathode reactant flowing to two discrete cathode sides of the fuel cell system. The varying of the stoichiometric quantity of cathode reactant can be between two predetermined values. The varying of the stoichiometric quantity can be during a steady state power demand placed on the system and/or during transients in a power demand placed on the system. The airmover that supplies the cathode reactant stream can be operated in a substantially continuous manner during a continuous power demand placed on the fuel cell system.

摘要翻译： 燃料电池系统利用至少一个流量限制装置来改变流向燃料电池系统的两个离散阴极侧的阴极反应物的化学计量量。 阴极反应物的化学计量量的变化可以在两个预定值之间。 化学计量量的变化可以在放置在系统上的稳态功率需求和/或在放置在系统上的功率需求的瞬变期间。 供应阴极反应物流的空气调节器可以在放置在燃料电池系统上的连续功率需求下以基本上连续的方式操作。

公开(公告)号：US20090032754A1

公开(公告)日：2009-02-05

申请号：US12200006

申请日：2008-08-28

申请人： Rainer Pechtold

发明人： Rainer Pechtold

IPC分类号： F16K31/02

CPC分类号： F16K1/302 ,  F16K1/303 ,  F16K1/44 ,  F16K31/0603 ,  F16K31/0606 ,  Y10T137/86759 ,  Y10T137/86895

摘要： A shut-off valve that has particular application for opening and closing a compressed hydrogen storage tank. In one embodiment, the valve includes two valve sealing members where one side of one valve sealing member is on the high pressure side of the valve and an opposing side of the other valve sealing member is on the high pressure side of the valve. Therefore, the pressure applied to the two valve sealing members offset each other so that less force is required to open the valve against the high pressure.

摘要翻译： 一种特别用于打开和关闭压缩储氢罐的截止阀。 在一个实施例中，阀包括两个阀密封构件，其中一个阀密封构件的一侧位于阀的高压侧，另一个阀密封构件的相对侧位于阀的高压侧。 因此，施加到两个阀密封构件的压力彼此抵消，从而需要较小的力来打开阀来抵抗高压。