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公开(公告)号：US11560963B2
公开(公告)日：2023-01-24
申请号：US17325903
申请日：2021-05-20
发明人： Javier Arteta , Thomas Steimer
IPC分类号： F16K15/14 , F16K27/02 , F16K27/12 , F16K31/126 , F16K17/08
摘要： A pressure relief valve includes a bowl-shaped housing having a bottom wall and an annular sealing wall, wherein the sealing wall delimits a valve through-opening, and a jacket wall. A cover is provided for covering a housing opening of the housing opposite to the bottom wall, having a diaphragm holder extending in the direction of the bottom wall. A diaphragm is provided for covering the valve through-opening, wherein the diaphragm is connected to the diaphragm holder and disposes the diaphragm holder sealingly on the annular sealing wall such that the valve through-opening is closed.
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公开(公告)号：US11536386B2
公开(公告)日：2022-12-27
申请号：US17269520
申请日：2019-07-16
申请人： Fujikin Incorporated
IPC分类号： F16K27/02 , F16K7/16 , F16K37/00 , G01M3/28 , F16K7/17 , F16K31/126 , F16K31/122
摘要： A fluid control device, capable of detecting leaks even if the leaks is slight, is provided. The fluid control device includes a valve body in which the flow path is formed, a diaphragm isolating a closed space from the flow path, a bonnet forming the closed space between the diaphragm and providing a penetration hole connected to the closed space and penetrated to be able to vertically move a diaphragm retainer, the diaphragm retainer vertically moving in the penetration hole to press the diaphragm and providing an increased diameter portion not to be removed from the penetration hole, a pressure sensor detecting a pressure inside of the closed space, and an elastic body interposing between the increased diameter portion of the diaphragm retainer and the bonnet inside of the closed space and elastically expanding and deflating between the increased diameter portion of the diaphragm retainer and the bonnet as the diaphragm retainer vertically moves.
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公开(公告)号：US11530591B2
公开(公告)日：2022-12-20
申请号：US16864448
申请日：2020-05-01
申请人： SPM Oil & Gas Inc.
发明人： Brian C. Witkowski , Nuder Said , Duc Thanh Tran
IPC分类号： E21B33/068 , F04B15/02 , F04B23/04 , F04B47/00 , B01F23/43 , B01F27/05 , E21B33/038 , E21B43/26 , F16K5/04 , F16K11/048 , F16K31/126 , F04B23/06 , F16L41/03 , B01F101/49 , F16K5/00 , F16K11/00
摘要： A plug valve including a valve body defining an internal cavity, a first passage, and a second passage, a plug defining a third passage and being rotatable within the internal cavity, and an insert extending within the internal cavity between the valve body and the plug. The insert defines an interior surface and an opening aligned with the first passage of the valve body. The insert may also define a sealing surface extending around the opening and standing in relief against the interior surface to sealingly engage the plug. In addition to, or instead of, the sealing surface, the insert may define a projection at least partially defining the interior surface. In addition, a boot may be connected to the valve body and interlocked with the projection to prevent, or at least reduce, rotation of the insert relative to the valve body when the plug rotates within the internal cavity.
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公开(公告)号：US20220325802A1
公开(公告)日：2022-10-13
申请号：US17638608
申请日：2020-08-28
发明人： Hiroshi SUENAGA , Kenro YOSHINO
IPC分类号： F16K1/42 , F16K1/36 , F16K7/16 , F16K31/126 , F16K17/04
摘要： A valve device includes a valve main body having a valve chamber, and inflow and outflow passages communicating with the valve chamber; an annular valve seat surrounding an opening from the inflow passage to the valve chamber; and a valve element moved to contact with and separate from the valve seat. One of the valve seat and the valve element includes a contact surface, and the other of the valve seat and the valve element includes an annular raised rib. The rib has at a top thereof an annular sealing part contacting the contact surface to provide sealing between the valve element and the valve seat. The sealing part includes an annular flat surface extending parallel to the contact surface, and two annular inclined surfaces provided adjacent to the flat surface on both sides and inclined to the flat surface to extend in a direction away from the contact surface.
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公开(公告)号：US11466793B1
公开(公告)日：2022-10-11
申请号：US17485663
申请日：2021-09-27
IPC分类号： F16K41/10 , F16K5/04 , F16K31/126 , F16K1/38
摘要： A bellows seal valve includes a pressurization port that can be used to apply a compensating pressure to the “atmosphere” side of the bellows, i.e. the side of the bellows that is opposite to the process fluid. The atmosphere side can be on the interior or exterior of the bellows. The compensating pressure can be greater than the process fluid pressure, to ensure that any leakage will be of pressurizing fluid into the process fluid or into the environment, and that no process fluid will escape into the environment. The pressure or flow rate of the pressurizing fluid can be monitored to detect bellows and packing leaks. A pressurizing fluid exit port can be provided, so that the pressurizing fluid can be circulated through the valve, thereby moderating the bellows temperature under conditions of extreme process fluid temperature.
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公开(公告)号：US11441702B1
公开(公告)日：2022-09-13
申请号：US16407716
申请日：2019-05-09
发明人： Casey Glick , John Lutian
IPC分类号： F16K7/12 , F16K99/00 , F16K41/12 , F16K7/17 , F16K31/165 , F16K31/126
摘要： The disclosed computer-implemented method may include a fluidic device comprising a chamber, an inlet port coupled to the chamber and configured to convey fluid to the chamber, and an outlet port coupled to the chamber and configured to convey the fluid from the chamber. The fluidic device may also have a restricting region that (1) is dimensioned to restrict a flow of the fluid through the outlet port when the pressure in the chamber is below a threshold level and (2) is configured to move in a manner that allows a flow rate of the fluid through the outlet port to increase when pressure in the chamber reaches the threshold level.
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公开(公告)号：US20220282656A1
公开(公告)日：2022-09-08
申请号：US17619257
申请日：2020-06-17
申请人： PIERBURG GMBH
IPC分类号： F01N3/22 , F16K31/126 , F16K15/18
摘要： A valve device for an internal combustion engine. The valve device includes an actuator which moves a valve rod, a housing with an inlet and an outlet, a valve closing member attached to the valve rod which is lowered onto and lifted off of a first valve seat, a non-return plate which is loaded via a spring force in a direction of a second valve seat, and a sealing lip which is formed on the second valve seat or on the non-return plate. The sealing lip extends from the second valve seat in a direction of the non-return plate or from the non-return plate in a direction of the second valve seat. The sealing lip is formed with a free end which is inclined in a direction of a side on which a higher pressure is applied when the non-return plate rests on the second valve seat.
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公开(公告)号：US20220252182A1
公开(公告)日：2022-08-11
申请号：US17171609
申请日：2021-02-09
IPC分类号： F16K41/10 , F16K31/126
摘要： A valve includes a valve body with an inlet and an outlet coupled to a tubular conduit operable to circulate a flow of a process fluid, an actuator with an interior volume divided by a valve diaphragm into a first volume portion that encloses a working fluid and a second volume portion, and a plug coupled to the valve diaphragm and operable to move toward an open position or a closed position based on movement of the valve diaphragm relative to a pressure of the working fluid. A seal isolator is coupled to the tubular conduit and includes an isolator diaphragm having a first side exposed to the flow of the fluid and a second side fluidly coupled to the first volume portion through the working fluid. The isolator diaphragm is configured to transmit a pressure of the flow of the process fluid to the pressure of the working fluid.
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公开(公告)号：US11371402B2
公开(公告)日：2022-06-28
申请号：US16523344
申请日：2019-07-26
IPC分类号： F01N1/16 , F16K1/20 , F16K31/163 , F01N13/00 , F16K31/126
摘要： A valve assembly for an exhaust system of a vehicle. The valve assembly includes a first housing, a second housing, a valve flap and a spring. The first housing defines an inlet, an outlet, and an exhaust gas passageway in fluid communication with the inlet and the outlet. The second housing is attached to the first housing and defines a compartment. The valve flap is rotatable between a first position restricting exhaust gas flow through the exhaust gas passageway, and a second position whereat exhaust gas flow through the exhaust gas passageway is allowed. The spring is disposed in the compartment and out of the exhaust gas passageway. The spring engages the valve flap to bias the valve flap toward the first position.
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公开(公告)号：US11280427B2
公开(公告)日：2022-03-22
申请号：US16390124
申请日：2019-04-22
申请人： Pfeiffer Vacuum GmbH
发明人： Thomas Cromm , Timo Lange
IPC分类号： F16K31/126 , F16K17/04
摘要： The present invention relates to a vacuum safety valve for a vacuum pump, in particular for a rotary vane pump, comprising a housing having a flow path extending between an inlet and an outlet for a gas to be conveyed, a valve region that is disposed in the flow path and in which a valve closure element is arranged that is movable between a closed position and an open position, a control space that is associated with the valve region and in which a membrane separating the pressure side from an operating side is arranged, and a control element active between the membrane and the closure element, wherein the closure element is movable via the control element against a return force from the closed position into the open position by means of the membrane acted on at the pressure side and is movable back into the closed position on a removal of the membrane load due to the return force and is held in the closed position.
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