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公开(公告)号：US12060946B2
公开(公告)日：2024-08-13
申请号：US17905363
申请日：2021-03-23
申请人： SPM Oil & Gas Inc.
CPC分类号： F16K1/42 , F04B1/0456 , F04B53/1025 , F16K1/46 , F16K15/063 , E21B43/2607 , F04B53/1087 , Y10T137/7868
摘要： A valve seat for a valve assembly for a high-pressure fluid pump is disclosed. The valve assembly includes a valve body, and a valve seat fabricated of a first material. The valve seat has a generally a tubular body having an annular collar having an outer diameter surface extending beyond the outer diameter surface of the tubular body, and an annular insert fabricated of a second material more durable than the first material and affixed to form an inner diameter surface of the collar, the insert forming an annular sealing surface against which the valve body abuts when in a closed position. The insert forms an annular ledge edge at its inner diameter surface that is offset from the inner diameter surface of the tubular body to form an annular chamfered edge.
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公开(公告)号：US12044234B2
公开(公告)日：2024-07-23
申请号：US17846050
申请日：2022-06-22
发明人： Xiaobin Li , Baojie Wang , Jixin Wang , Peng Li , Chen Jiang , Haiping Cui , Shulin Zhang , Anpeng Ge
IPC分类号： F04B53/16 , F04B1/0404 , F04B1/047 , F04B1/053 , F04B1/122 , F04B1/182 , F04B1/184 , F04B53/10
CPC分类号： F04B53/162 , F04B1/0404 , F04B1/047 , F04B1/053 , F04B1/122 , F04B1/182 , F04B1/184 , F04B53/1025 , F04B53/1032 , F04B53/1035 , F04B53/1087
摘要： A cover, a fluid end and a plunger pump are provided. The cover includes: a body, the body being cylindrical, and the body including a first end, a second end, and a side surface connecting the first end and the second end; a main flow channel extending along an axis of the body; a plurality of subsidiary flow channels, each of the plurality of subsidiary flow channels being communicated with the main flow channel; a first opening, located at the first end and communicated with the main flow channel; and a plurality of second openings, located at the side surface of the body; each of the plurality of subsidiary flow channels being communicated with at least one of the plurality of second openings.
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公开(公告)号：US20230366395A1
公开(公告)日：2023-11-16
申请号：US17743770
申请日：2022-05-13
CPC分类号： F04B53/1087 , F04B19/04 , F04B53/108 , F04B53/103 , F04B53/164 , F04B19/22 , F04B53/109
摘要： A high pressure reciprocating pump (10) for high fluid pressures having a valve cartridge (57) positioned within a manifold block (15) of the pump (10). The valve cartridge (57) has a fixed body (58) with a plurality of equally spaced suction opening (69) extending therethrough. A central bore (70) of the valve cartridge body (58) has a valve assembly (72) mounted therein. Valve assembly (72) include a discharge valve member (74) and a two-piece suction valve member (280) mounted for sliding movement about the outer surface of discharge valve member (74). A spring (84) biased between spring retainer (87) and the two-piece suction valve member (280) continuously urges the valve members (74, 280) toward closed position. On the suction stroke, the two piece suction valve member (280) is opened and fluid through suction openings (69) enters the pump chamber (37). On the discharge stroke, high pressure fluid is discharged through the central bore (77) and lateral slots (79) of open discharge valve member (74) past seat (78). The two-piece suction valve 280 includes a spring seat 282 and a hard sealing member 284.
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公开(公告)号：US11761441B1
公开(公告)日：2023-09-19
申请号：US17891731
申请日：2022-08-19
CPC分类号： F04B53/1027 , F04B53/103 , F04B53/1087 , F16K1/42 , F16K2200/30 , Y10T137/7904 , Y10T137/7922 , Y10T137/7925 , Y10T137/7929 , Y10T137/7939 , Y10T137/86019
摘要： A valve member for a spring-loaded valve assembly includes a top portion having a spring retaining recess, the spring retaining recess extending into the top portion to form a void space, the void space to receive at least one coil of a spring, the spring retaining recess having a recess diameter that is smaller than a top portion diameter, wherein the recess diameter is larger than a rest diameter of a spring base including the coil, the spring retaining recess blocking expansion of the at least one coil when the spring is compressed. The valve member also includes a bottom portion coupled to the top portion. The valve member further includes a sealing element positioned axially below a shoulder of the top portion and legs coupled to the bottom portion.
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公开(公告)号：US20230279854A1
公开(公告)日：2023-09-07
申请号：US18116247
申请日：2023-03-01
申请人： Bobby Lee Koricanek
发明人： Bobby Lee Koricanek
CPC分类号： F04B53/22 , F04B53/1087 , E21B43/2607
摘要： A method is disclosed for removing/installing both the upper and lower valve seat in a fluid end for a high-pressure pump with a plurality of horizontal plunger bores and an equal amount of vertical suction bores. Vertical suction bore contains a valve seat below the plunger bore and a valve seat above the plunger bore. The lower valve seat can pass through the upper valve seat pocket and be removed from fluid end via plunger bore opening.
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公开(公告)号：US11725641B2
公开(公告)日：2023-08-15
申请号：US17084473
申请日：2020-10-29
IPC分类号： F04B19/22 , F04B49/22 , F04B53/10 , F04B53/14 , F04B39/00 , F04B23/02 , F04B15/04 , F04B41/02 , F04B53/12 , F04B5/02
CPC分类号： F04B19/22 , F04B49/22 , F04B53/1002 , F04B53/14 , F04B5/02 , F04B15/04 , F04B23/028 , F04B39/0016 , F04B39/0022 , F04B41/02 , F04B53/101 , F04B53/1005 , F04B53/109 , F04B53/1087 , F04B53/126
摘要： A double-acting reciprocating pump comprises a piston assembly comprising at least one piston disposed within at least one piston cylinder for undergoing opposite reciprocal movements within said at least one piston cylinder, an upper pump chamber disposed above the piston, and a lower pump chamber disposed below the piston. A fluid inlet is fluidically connected to one of the upper and lower pump chambers so as to supply fluid thereto, and a fluid outlet dispensing port is defined within a lower end portion of the double-acting reciprocating pump assembly for permitting fluid to be dispensed out from the double-acting reciprocating pump assembly during both of the opposite reciprocal movements.
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公开(公告)号：US20230160384A1
公开(公告)日：2023-05-25
申请号：US17535273
申请日：2021-11-24
申请人： SPM Oil & Gas Inc.
发明人： Richard D. Peer , Chandu Kumar
CPC分类号： F04B53/1087 , F04B19/22 , F04B53/22
摘要： A fluid end includes a fluid end block defining a chamber. A plunger is disposed in the chamber. An outlet fluid passage is formed in the fluid end block in communication with the fluid chamber. An inlet fluid passage formed in the fluid end block communicates with the fluid chamber. The inlet fluid passage includes a seat, an enlarged diameter downstream from the seat, and a neck downstream of the enlarged diameter. The neck has a lesser diameter than the enlarged diameter. An inlet valve is movably disposed in the inlet fluid passage and is sized and shaped to seal against the seat. A biasing member has a first and second end with respective first diameter and a second diameter disposed within the enlarged diameter. The second end is positioned against the neck. The second end diameter is greater than the neck.
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公开(公告)号：US20190203703A1
公开(公告)日：2019-07-04
申请号：US16351906
申请日：2019-03-13
CPC分类号： F04B43/02 , F04B19/006 , F04B43/0027 , F04B43/043 , F04B53/1087 , F16K99/0015 , F16K99/0046 , F16K2099/0094
摘要： A fluid pump for pumping a fluid from an inlet toward an outlet comprises a pump body, a pump diaphragm, and a valve seat. The pump body has a first opening and a second opening. The pump diaphragm is attached to the pump body and forms a pump chamber between the pump body and the pump diaphragm. The pump chamber is fluidly connected to the inlet by the first opening and to the outlet by the second opening. The valve seat is disposed inside the pump chamber and around the second opening. The valve seat protrudes with an undeformed height from the second opening into the pump chamber in a direction toward the pump diaphragm. The valve seat has an elastic body and a gasket with a sealing surface. The pump diaphragm is deflectable and is adapted to open and close a fluidic pathway of the outlet by moving into and out of contact with the valve seat.
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公开(公告)号：US20180195510A1
公开(公告)日：2018-07-12
申请号：US15864684
申请日：2018-01-08
申请人： HAWE Hydraulik SE
发明人： Georg Neumair , Thomas Simon
IPC分类号： F04B53/10 , F04B3/00 , F04B23/02 , F16K31/122
CPC分类号： F04B53/101 , F04B3/00 , F04B23/025 , F04B23/06 , F04B53/1087 , F04B53/14 , F04B53/16 , F16K15/044 , F16K31/1221
摘要： The present invention relates to a dual-stage pump for a hydraulic system with a housing, a high and low-pressure pump element, a common pressure outlet and a switching valve that is arranged between a tank connection and the low-pressure pump element. The switching valve has a spring element and a piston being movable against a force of the spring element relative to the housing and having a closing member that can be lifted from a valve seat by a control pressure that is tapped on the pressure outlet and applied in a control pressure chamber. On the one hand, the invention is characterized in that the switching valve comprises a tappet that is movable relative to the housing and configured to move the piston and arranged between the control pressure chamber and the piston and has a smaller effective diameter than the piston. On the other hand, the invention is characterized in that the dual-stage pump comprises at least one valve that can be screwed into the housing, wherein a cutting edge of the valve is sealingly cut into the housing.
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10.发明申请公开(公告)号：US20180163717A1
公开(公告)日：2018-06-14
申请号：US15839492
申请日：2017-12-12
申请人： HAMMELMANN GMBH
发明人： Michael JARCHAU
CPC分类号： F04B49/246 , F02M59/442 , F02M59/464 , F02M63/0028 , F02M63/0054 , F02M63/0205 , F04B7/02 , F04B37/12 , F04B49/002 , F04B49/03 , F04B53/10 , F04B53/1087 , F04B53/109 , F04B2201/06012
摘要： A high pressure plunger pump, having at least one plunger arrangement which comprises a working space connected to a valve seat suction line and a valve seat pressure line, in which a plunger is arranged in an axially reciprocable manner, wherein the valve seat pressure line is closeable by a pressure valve and the valve seat suction line by a suction valve, and the suction valve can be kept in an open position in a controlled manner as required by means of a counter-pressure device, is designed so that the counter-pressure device has a supply line via which a control fluid can be guided to the suction valve for keeping the suction valve open, wherein a low-pressure pump is connected to the supply line for generating pressure of the control fluid.
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