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公开(公告)号：US20220389924A1
公开(公告)日：2022-12-08
申请号：US17341572
申请日：2021-06-08
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: An inlet valve system (10), as may be used for a cylinder chamber (20) of a compressor, such as a reciprocating compressor, is disclosed. A plurality of inlet valves (250) is movable between an open position and a closed position. The plurality of inlet valves is arranged between an unloader chamber (120) and a cylinder chamber (20) of the compressor. A control valve (270, 270′) is coupled to a controller (300) and is movable between a first position and a second position to close the inlet valves. A check valve (260, 260′) is movable between a first position and a second position to open the inlet valves. The check valve and the control valve are respectively fluidly coupled to a control chamber (252), which is decoupled from any pressure control external to cylinder chamber (20).
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公开(公告)号：US20220243722A1
公开(公告)日：2022-08-04
申请号：US17617044
申请日：2019-06-10
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: An improved inlet valve system for a cylinder chamber of a reciprocating compressor and a method for utilizing a high pressure gas source to control an inlet valve system for a cylinder chamber of a reciprocating compressor is disclosed. The inlet valve system may include an unloader, a valve assembly including a cylindrical valve body circumferentially disposed about a central axis of the inlet valve system, and a control valve actuator including a control valve body. The valve assembly may include a plurality of inlet valve elements disposed respectively in valve element ports fluidly connected to a control valve passage. A high pressure gas source is utilized to hold open and close the inlet valve elements via the control valve passage in order to control the capacity of the reciprocating compressor.
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Patent Agency Ranking
公开(公告)号：US20190293064A1
公开(公告)日：2019-09-26
申请号：US16301197
申请日：2017-06-29
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: An inlet valve system for a cylinder chamber of a reciprocating compressor and a method for unloading the inlet valve system are provided. The inlet valve system may include an unloader, a valve assembly including a cylindrical valve body circumferentially disposed about a central axis of the inlet valve system, and a control valve actuator including a control valve body circumferentially disposed about the central axis of the inlet valve system. A control valve passage of the control valve body may extend along the central axis of the inlet valve system, a control valve element may be disposed in the control valve passage, and a control pressure source may be fluidly coupled to the control valve passage.
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公开(公告)号：US11732707B2
公开(公告)日：2023-08-22
申请号：US17341572
申请日：2021-06-08
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: An inlet valve system (10), as may be used for a cylinder chamber (20) of a compressor, such as a reciprocating compressor, is disclosed. A plurality of inlet valves (250) is movable between an open position and a closed position. The plurality of inlet valves is arranged between an unloader chamber (120) and a cylinder chamber (20) of the compressor. A control valve (270, 270′) is coupled to a controller (300) and is movable between a first position and a second position to close the inlet valves. A check valve (260, 260′) is movable between a first position and a second position to open the inlet valves. The check valve and the control valve are respectively fluidly coupled to a control chamber (252), which is decoupled from any pressure control external to cylinder chamber (20).
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公开(公告)号：US11384753B1
公开(公告)日：2022-07-12
申请号：US17314138
申请日：2021-05-07
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: An unloader valve includes a seat including a plurality of inlet apertures spaced apart from one another and extending through the seat along one of a plurality of parallel inlet axes. A manifold plate is fixedly connected to the seat and includes a plurality of outlet apertures, each spaced apart from one another and extending through the manifold plate along one of a plurality of parallel outlet axes. The unloader valve also includes a plurality of plug holes, a control chamber formed in the manifold plate, and a control space fully defined by the manifold plate and arranged to fluidly connect the control chamber and each of the plug holes to one another. The unloader valve also includes a control member disposed within the control chamber and movable between a first position in which the control space is exposed to a pressure source, and a second position in which the control space is isolated and a plurality of plugs, each positioned within one of the plug holes and movable between a closed position in which each plug closes one of the inlet apertures and an open position in which the plurality of inlet openings are in fluid communication with the plurality of outlet openings.
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公开(公告)号：US20220186720A1
公开(公告)日：2022-06-16
申请号：US17605310
申请日：2019-05-09
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: A compressor valve assembly is presented. The compressor valve assembly includes a seat and a guard attached to each other. The seat includes an inlet hole. The guard includes a spring. The guard includes a guide pin attached to the bottom of the guard and extends out the spring internally. The guard includes a seal element attached to the guide pin. The seal element includes a socket to receive the guide pin and a spring landing area residing on top of the spring. The guide pin internally guides a movement of the seal element to move toward the inlet hole when the spring extends and to move away from the inlet hole when the spring is compressed.
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公开(公告)号：US11015591B2
公开(公告)日：2021-05-25
申请号：US16301197
申请日：2017-06-29
Applicant: DRESSER-RAND COMPANY
Inventor： Joel T. Sanford
Abstract: An inlet valve system for a cylinder chamber of a reciprocating compressor and a method for unloading the inlet valve system are provided. The inlet valve system may include an unloader, a valve assembly including a cylindrical valve body circumferentially disposed about a central axis of the inlet valve system, and a control valve actuator including a control valve body circumferentially disposed about the central axis of the inlet valve system. A control valve passage of the control valve body may extend along the central axis of the inlet valve system, a control valve element may be disposed in the control valve passage, and a control pressure source may be fluidly coupled to the control valve passage.
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