公开(公告)号：US20210079908A1

公开(公告)日：2021-03-18

申请号：US17041730

申请日：2018-07-13

Applicant: Dresser-Rand Company

Inventor： Scott J. Delmotte

IPC: F04B39/10 ,  F04B39/12

Abstract: A reciprocating compressor with an improved valve assembly is disclosed. Compressor includes a cylinder block having a cylinder that defines a cylindrical bore extending longitudinally along a bore axis. Cylinder block includes a hollow chamber extending longitudinally along a chamber axis, which is non-intersecting relative to the bore axis. Valve assembly is disposed in hollow chamber. Valve assembly is made up of an axially-stacked arrangement of components extending along chamber axis. The axially-stacked arrangement of components is spaced apart from a wall that forms a perimeter of the cylinder and is thus free from mechanical interference with the perimeter of the cylinder.

公开(公告)号：US10775111B2

公开(公告)日：2020-09-15

申请号：US16204223

申请日：2018-11-29

Applicant: Dresser-Rand Company

Inventor： Jason M. Kerth

IPC: F24D11/00 ,  F28D20/00 ,  F01K3/12 ,  F28C3/14

Abstract: A pumped heat energy storage system (11) is provided. A thermodynamic charging assembly (11′) may be configured to compress a working fluid and generate thermal energy. A thermal storage assembly (32) is coupled to charging assembly to store at atmospheric pressure by way of a conveyable bulk solid thermal storage media thermal energy generated by the charging assembly. A thermodynamic discharging assembly (11″) is coupled to the thermal storage assembly to extract thermal energy from the thermal storage assembly and convert extracted thermal energy to electrical energy. A heat exchanger assembly (34) is coupled to the thermal storage assembly. The heat exchanger assembly is arranged to directly thermally couple the conveyable bulk solid thermal storage media that is conveyed to the heat exchanger assembly with a flow of the working fluid that passes through the heat exchanger assembly. Disclosed embodiments can make use of immersed-particle heat exchanger technology and can offer similar roundtrip efficiency and pressure ratio characteristics comparable to those of a recuperated cycle without involving a recuperator and concomitant piping.

公开(公告)号：US10724430B2

公开(公告)日：2020-07-28

申请号：US16611654

申请日：2018-06-01

Applicant: Dresser-Rand Company

Inventor： Jason M. Kerth

IPC: F02C1/10 ,  F02C6/14 ,  F28D20/00

Abstract: A pumped heat energy storage (PHES) system (100) including a charging circuit and a discharging circuit effective to balance or split a total heat rejection of the PHES system between the charging circuit and the discharging circuit. The charging circuit may include thermal storage vessels (102, 104) to store thermal energy generated from a first compressor (110). A first heat rejection system (128) is fluidly coupled with the thermal storage vessels to remove thermal energy from the charging circuit. The discharging circuit may include a first turbine (146) fluidly coupled with the thermal storage vessels to extract thermal energy stored in the thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid. A second heat rejection system (156) is fluidly coupled with the thermal storage vessels and the first turbine to remove thermal energy from the discharging circuit.

公开(公告)号：US20200182148A1

公开(公告)日：2020-06-11

申请号：US16792684

申请日：2020-02-17

Applicant: Dresser-Rand Company

Inventor： Joseph Williams ,  Jason M. Kerth

IPC: F02C6/16 ,  F02C7/14

Abstract: A hybrid compressed air energy storage system is provided. A heat exchanger 114 extracts thermal energy from a compressed air to generate a cooled compressed air stored in an air storage reservoir 120, e.g., a cavern. A heat exchanger 124 transfers thermal energy stored in a thermal storage device 130 to compressed air conveyed from reservoir 120 to generate a heated compressed air. An expander 140 is solely responsive (no heat is introduced by way of a combustor) to the heated compressed air to produce power and generate an expanded air. Expander 140 being solely responsive to heated compressed air by heat exchanger 124 is effective to reduce a temperature of the expanded air by expander 140, and thus a transfer of thermal energy from an expanded exhaust gas received by a recuperator 146 (used to heat the expanded air by the first expander) is effective for reducing waste of thermal energy in exhaust gas cooled by recuperator 146.

公开(公告)号：US10578307B2

公开(公告)日：2020-03-03

申请号：US15250997

申请日：2016-08-30

Applicant: Dresser-Rand Company

Inventor： Andrew J. Olsen ,  George C. Talabisco ,  Scott David Wisler ,  Silvano R. Saretto

IPC: F23R3/40 ,  F02C7/08 ,  F02C7/224 ,  F02C6/08 ,  F23R3/42 ,  F02C3/04 ,  F01D15/10 ,  H02K7/18

Abstract: A gas turbine assembly and method for operating the gas turbine assembly are provided. The method for operating the gas turbine assembly may include compressing a process fluid containing inlet air through a compressor to produce compressed inlet air, combining fuel from a main fuel source with the process fluid, and preheating the process fluid containing the inlet air and the fuel in a warmer disposed downstream from the compressor. The method may also include heating an oxidizer by flowing the preheated process fluid from the warmer to the oxidizer, and oxidizing the process fluid containing the compressed inlet air and the fuel in the oxidizer to produce an oxidation product. The method may further include expanding the oxidation product in a turbine to generate rotational energy, and preventing the process fluid from flowing upstream to the compressor with a check valve.

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

IPC: F04B49/03 ,  F04B53/10

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.

公开(公告)号：US20190211661A1

公开(公告)日：2019-07-11

申请号：US16333363

申请日：2017-10-13

Applicant: DRESSER-RAND COMPANY

Inventor： Udo Reckels ,  Harold Jones

IPC: E21B43/267 ,  F01D15/08 ,  F04B17/03 ,  F04B47/02

Abstract: A hydraulic fracturing system that includes a fixed-speed gas turbine assembly having a gas generator and power turbine, both mounted to a semi-trailer. The system further includes a hydraulic pump mounted to the semi-trailer and connected to an output shaft of the power turbine and a hydraulically-driven fracturing fluid pump mounted to the semi-trailer and being in fluid communication with the hydraulic pump, the hydraulic pump supplying fluid pressure to the hydraulically-driven fracturing fluid pump. The system is configured such that the hydraulically-driven fracturing fluid pump receives fracturing fluid containing chemicals and proppants and pressurizes the fracturing fluid to a pressure sufficient for injection into a wellbore to support a hydraulic fracturing operation.

公开(公告)号：US20190162482A1

公开(公告)日：2019-05-30

申请号：US16204223

申请日：2018-11-29

Applicant: Dresser-Rand Company

Inventor： Jason M. Kerth

IPC: F28D20/00

Abstract: A pumped heat energy storage system (11) is provided. A thermodynamic charging assembly (11′) may be configured to compress a working fluid and generate thermal energy. A thermal storage assembly (32) is coupled to charging assembly to store at atmospheric pressure by way of a conveyable bulk solid thermal storage media thermal energy generated by the charging assembly. A thermodynamic discharging assembly (11″) is coupled to the thermal storage assembly to extract thermal energy from the thermal storage assembly and convert extracted thermal energy to electrical energy. A heat exchanger assembly (34) is coupled to the thermal storage assembly. The heat exchanger assembly is arranged to directly thermally couple the conveyable bulk solid thermal storage media that is conveyed to the heat exchanger assembly with a flow of the working fluid that passes through the heat exchanger assembly. Disclosed embodiments can make use of immersed-particle heat exchanger technology and can offer similar roundtrip efficiency and pressure ratio characteristics comparable to those of a recuperated cycle without involving a recuperator and concomitant piping.

公开(公告)号：US10288111B2

公开(公告)日：2019-05-14

申请号：US15438991

申请日：2017-02-22

Applicant: Dresser-Rand Company

Inventor： Scott J. Delmotte ,  Waldo E. Burdick, Jr. ,  Jonathan Kio ,  Daniel Brackley ,  Angus Andrews ,  Malcolm J. Cliff

IPC: F16C5/00 ,  F16J1/12 ,  F16J1/16 ,  F16C17/02

Abstract: A piston rod assembly for a reciprocating compressor. The piston rod assembly may include a piston rod having a longitudinal axis and forming a piston rod neck and a piston rod shoulder. The piston rod may include a first end integral or coupled with a piston head and a second end axially opposing the first end and configured to couple with a crosshead including a flange. An inner surface of the flange may have a Brinell hardness. The piston rod assembly may also include a cylindrical sleeve disposed circumferentially about the piston rod neck. The cylindrical sleeve may have a lower Brinell hardness than the Brinell hardness of the inner surface of the flange.

公开(公告)号：US20180274050A1

公开(公告)日：2018-09-27

申请号：US15523036

申请日：2015-10-23

Applicant: DRESSER-RAND COMPANY

Inventor： Byron Mohr ,  Steven Nove

IPC: C21D6/00 ,  C22C38/52 ,  C22C38/46 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/42

CPC classification number: C21D6/004 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/52

Abstract: A metal article including an at least partially heat treated metal composition, and a method for treating the metal article are provided. The method for treating the metal article may include heating the metal article to a first holding temperature of about 690° C., and holding the metal article at the first holding temperature for at least about 10 hours. The method may also include cooling the metal article from the first holding temperature to a first cooling temperature of about 65° C. or less. The method may further include heating the metal article to a second holding temperature of about 615° C., and holding the metal article at the second holding temperature for at least about 10 hours. The method may also include cooling the metal article from the second holding temperature to a second cooling temperature of about 65° C. or less.