Patents Assigned to Dresser-Rand Company
  • Publication number: 20180291927
    Abstract: An internally-cooled compressor is provided including a casing and a diaphragm disposed in the casing. The diaphragm includes a diaphragm box defining a plurality of box channels and a bulb defining a plurality of bulb channels. A plurality of return channel vanes connect the diaphragm box and bulb in fluid communication, such that each return channel vane defines a plurality of return vane conduits coupled in fluid communication with the plurality of box channels and the plurality of bulb channels thereby forming a section of a cooling pathway. The cooling pathway is configured such that a cooling agent introduced from an external coolant source into the diaphragm box and flowing through a box channel flows through a return vane conduit into and through a bulb channel and back through another return vane conduit into another box channel before flowing back to the external coolant source.
    Type: Application
    Filed: February 26, 2014
    Publication date: October 11, 2018
    Applicant: Dresser-Rand Company
    Inventor: Jason M. Kerth
  • Patent number: 10082151
    Abstract: A seal assembly for a dual-flow compressor is provided. The seal assembly may include an annular body disposed about a rotary shaft between a first compression assembly and a second compression assembly of the dual-flow compressor. An inner radial surface of the annular body and an outer radial surface of the rotary shaft may at least partially define a radial clearance therebetween. The annular body may have a first seal section and a second seal section at a first axial end portion and a second axial end portion thereof, respectively. The first and second seal sections may at least partially define a cavity therebetween. The seal assembly may also include a reference line communicably coupling the cavity with an inlet of the first compression assembly and configured to at least partially generate a pressure differential between the cavity and an outlet of the first compression assembly.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: September 25, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Jose L. Gilarranz, Krishnaswamy Ramesh
  • Patent number: 10080986
    Abstract: A “bolt on” static separator is disclosed for use in conjunction with a rotating separator to handle higher liquid volumes that are not able to be effectively separated by the rotating separator alone. The static separator may be positioned upstream of the rotating separator, generally right in front of the rotating separator, i.e., immediately ahead of the inlet to the rotating separator and generally attached directly to the front end of the rotary separator. The static separator may include a significant change in flow path direction that is sufficient to cause coarse fluid separation. The output of the static separator is in communication with the input of the rotating separator. Additionally, the drain of the static separator is in communication with the drain of the rotating separator and is at the same pressure.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: September 25, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Pascal Lardy, Harry Allan Kidd, William C. Maier
  • Patent number: 10082143
    Abstract: Apparatus (10) and a method for supporting one or more turbomachines, with the apparatus including a first package (12) module including a first frame (32) and a fluid-handling machinery mount coupled to the first frame, the fluid-handling machinery mount being configured to support one or more fluid-handling machines (42). The apparatus also includes a second package module (14) including a second frame (38) and a heat exchanger mount coupled to the second frame, the heat exchanger mount being configured to support one or more process fluid coolers (46), and the second package module being coupled to the first package module. The apparatus further includes an access passage (16) extending between the first and second modules and configured to enable personnel to proceed therethrough.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: September 25, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Pascal Lardy, Pierre Jean, Frederic Marteau, Guillaume Carpentier
  • Patent number: 10082207
    Abstract: A piston assembly may include a piston rod and a piston disposed on the piston rod. The piston may include a frame end cap defining a through-bore for receiving the piston rod, and the frame end cap may form a first end of the piston. The piston may include an outer end cap defining a through-bore for receiving the piston rod, and the outer end cap may form a second end of the piston. The piston may also include a center support defining a through-bore for receiving the piston rod. The center support may be disposed between the frame end cap and the outer end cap, and an outer surface of the piston rod and an inner circumferential surface of the center support may define a radial gap.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: September 25, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Elmer B. Eaton, Jr., Malcolm J. Cliff, John K. Sandham, Waldo E. Burdick, Jr.
  • Patent number: 10062369
    Abstract: An acoustic resonator assembly may include a first acoustic liner and a second acoustic liner. The first acoustic liner may define a first plurality of openings extending between first and second surfaces thereof. The second acoustic liner may be rotatably coupled to the first acoustic liner and at least one of the first acoustic liner and the second acoustic liner may be configured to rotate relative to each other to attenuate one or more frequencies of acoustic energy generated by working fluid flowing past the acoustic resonator assembly. The second acoustic liner may define a second plurality of openings extending between first and second surfaces thereof. A number of degrees of freedom of the acoustic resonator assembly may be varied by rotating the first acoustic liner and/or the second acoustic liner.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: August 28, 2018
    Assignees: DRESSER-RAND COMPANY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Samir N. Mekid, Muhammad A. Hawwa, Zheji Liu
  • Patent number: 10060474
    Abstract: A radial magnetic bearing may include an annular housing including a radial outer wall disposed between radially outer ends of two annular axial end plates and an isolation sleeve which may include a helical arrangement of a plurality of ferromagnetic wires. The isolation sleeve may be an annular structure extending axially between the two annular axial end plates, and the isolation sleeve and the annular housing may define an isolation cavity therebetween. The radial magnetic bearing may also include an isolation sleeve retainer configured to maintain a position of the isolation sleeve between the two annular axial end plates. The radial magnetic bearing may further include a plurality of laminations disposed adjacent the isolation sleeve and about a shaft of the rotating machine. A gap may be defined between the plurality of laminations and the isolation sleeve.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: August 28, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: William C. Maier, Joseph A. Tecza
  • Patent number: 10047753
    Abstract: Systems and methods are provided for sidestream mixing. The system may include a first junction formed from a plurality of conduits. The plurality of conduits may include a first conduit fluidly coupled to a compressor, the first conduit forming a first conduit diameter and configured to flow therethrough a first process fluid stream of a plurality of process fluid streams. The plurality of conduits may also include a second conduit fluidly coupled to the first conduit and the compressor, and configured to flow therethrough a second process fluid stream of the plurality of process fluid streams. The first junction may be disposed a first distance at least three times the first conduit diameter upstream of the compressor, such that the first process fluid stream and the second process fluid stream are mixed and form a first combined process fluid stream prior to being fed into and pressurized in the compressor.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: August 14, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: James M. Sorokes, Harry F. Miller
  • Patent number: 10030672
    Abstract: A fluid compression system is disclosed having a hermetically-sealed housing with at least a motor and a compressor arranged therein. The motor may drive both the compressor and a blower device coupled to the housing or otherwise arranged within the housing and configured to circulate a cooling gas throughout the housing and thereby cool the motor and accompanying radial bearings. The blower device circulates the cooling gas through a closed-loop circuit which may include a heat exchanger and gas conditioning skid. Buffer seals may be used to seal the shaft on both sides of the compressor so as to prevent the migration of liquid and solid contaminants into the closed-loop cooling circuit.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 24, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Jose L. Gilarranz, David J. Peer, Louis Lombardi, Steven Rockwood, William C. Maier
  • Patent number: 10012234
    Abstract: A balance piston seal assembly for a balance piston of a compressor is provided. The balance piston seal assembly may include a balance piston seal, a stationary support, and a gripping assembly disposed between the balance piston seal and the stationary support. The balance piston seal may be configured to be disposed about the balance piston such that an inner radial surface of the balance piston seal and an outer radial surface of the balance piston define a radial clearance therebetween. The stationary support may be configured to be coupled or integral with a casing of the compressor. The gripping assembly may be configured to secure the balance piston seal with the stationary support and to maintain concentricity between the balance piston seal and the balance piston during thermal radial expansion of the balance piston seal relative to the balance piston.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 3, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: David J. Peer, Richard J. Wiederien, Paul Morrison Brown, James M. Sorokes, Mark J. Kuzdzal
  • Patent number: 10012107
    Abstract: Apparatus for housing a rotatable component and exchanging heat and methods for manufacturing the same are disclosed. The apparatus includes a first casing and a second casing spaced apart from the first casing and defining a gap therebetween. The apparatus also includes a cooling fluid manifold coupled to a source of a cooling fluid, and a stack of plates coupled to the first and second casings and extending therebetween to fill the gap. The first and second casings and the stack of plates define at least a portion of a pressurized containment area therein. Further, the stack of plates includes a bore in which the rotatable component is received and defines process fluid flowpaths configured to direct process fluid to and/or from the rotatable component. The stack of plates is in fluid communication with the cooling fluid manifold and transfers heat from the process fluid to the cooling fluid.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: July 3, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: William C. Maier, Vince R. Volpe, Jr.
  • Patent number: 9938895
    Abstract: A method for operating a compressed air energy storage system is provided. The method can include compressing a process gas with a compressor train to produce a compressed process gas and storing the compressed process gas in a compressed gas storage unit. The method can also include extracting the compressed process gas from the compressed gas storage unit to an expansion assembly through a feed line. A valve assembly fluidly coupled to the feed line can be actuated to control a mass flow of the compressed process gas from the compressed gas storage unit to the expansion assembly. The method can further include heating the compressed process gas in a preheater fluidly coupled to the feed line upstream from the expansion assembly, and generating a power output with the expansion assembly.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: April 10, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Jason M. Kerth, George M. Lucas, Stephen S. Rashid
  • Patent number: 9931642
    Abstract: A collection apparatus for a separator. The collection apparatus including a housing at least partially encircling a flow separation passage and defining a chamber and a cutout, the chamber being in fluid communication with the flow separation passage to receive a separated flow therefrom, and the cutout extending outward from the chamber to at least partially deflect the separated flow.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 3, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: William C. Maier, Gocha Chochua
  • Patent number: 9919251
    Abstract: A separator method and apparatus that includes a rotatable drum defining an annular passageway therein, a plurality of blades coupled to the rotatable drum and located in the annular passageway, each of the plurality of blades including a leading section, a trailing section, a concave surface, and a convex surface, the concave and convex surfaces extending from the leading section to the trailing section, each of the plurality of blades disposed circumferentially adjacent to at least another one of the plurality of blades so as to define blade flowpaths therebetween, and a housing at least partially surrounding the rotatable drum and defining a fluid collection chamber fluidly communicating with the annular passageway.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: March 20, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: William C. Maier, Gocha Chochua
  • Patent number: 9920649
    Abstract: A system and method for controlling the acoustic signature of a turbomachine having a plurality of valves wherein an operating load is identified and an arc of admission across a plurality of nozzles is associated therewith. A valve sequencing scheme is selected and implemented to activate the arc of admission for a particular operating load so as to minimize valve noise by adjusting valves simultaneously rather than consecutively.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 20, 2018
    Assignee: DRESSER-RAND COMPANY
    Inventors: Joseph Andrew Tecza, Stephen Samuel Rashid
  • Patent number: 9909440
    Abstract: A seal for a turbomachine is disclosed. The seal assembly includes a rotatable shaft having a stepped outer circumferential surface that defines one or more annular protrusions axially-spaced thereon. A seal is radially-offset from the rotatable shaft and has one or more annular recesses that extend radially-outward from the inner circumferential surface of the seal. A plurality of holes are defined in both the inner circumferential surface and the one or more annular recesses of the seal, the one or more annular recesses being axially-spaced from each other and configured to receive the one or more annular protrusions in an interlocking fit.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 6, 2018
    Assignee: Dresser-Rand Company
    Inventors: Manoj K. Gupta, Steven Nove, Thomas Soulas, Krishnaswamy Ramesh, Glenn Grosso
  • Patent number: 9909597
    Abstract: A fluid processing device may include a rotatable shaft, a driver configured to drive the rotatable shaft, a separator installed on the rotatable shaft, and a supersonic compressor fluidly communicating with the separator.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: March 6, 2018
    Assignee: Dresser-Rand Company
    Inventors: Bradford W. Dickson, Harry Allan Kidd
  • Patent number: 9903477
    Abstract: An annular seal may include a seal body configured for disposing around a rotor, a plurality of grooves and a plurality of projections formed on an inner circumferential surface of the seal body, and a plurality of dams circumferentially disposed on a first surface of the seal body. The first surface may extend radially from the inner circumferential surface of the seal body. The plurality of dams may be configured to increase a pressure of a working fluid contacting the plurality of dams such that the increase in the pressure may center the annular seal about the rotor.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: February 27, 2018
    Assignee: Dresser-Rand Company
    Inventors: Andrew J. Ranz, Zin Min Aye, Celeste To, Phoebe DeGroot
  • Patent number: 9879690
    Abstract: A shaft of a compressor may include a first shaft section defining a first cavity axially extending therein and a second shaft section defining a second cavity axially extending therein. A plurality of inlet holes may be defined on an outer surface of the first shaft section, and a plurality of outlet holes may be defined on an outer surface of the second shaft section. The plurality of inlet holes may be in fluid communication with the first cavity and the plurality of outlet holes may be in fluid communication with the second cavity. The first cavity and the second cavity may form a passageway fluidly coupling the plurality of inlet holes and the plurality of outlet holes.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: January 30, 2018
    Assignee: Dresser-Rand Company
    Inventor: Daniel J. Griffin
  • Patent number: 9874230
    Abstract: A fluid takeoff assembly for a motor-compressor is provided and includes an outer pipe having an inlet and an outlet, and an inner pipe defining a fluid passage extending from an open axial end toward a closed axial end thereof and a radial opening fluidly coupled with the fluid passage. The inner pipe may be disposed in the outer pipe such that the open axial end and the closed axial end are oriented toward the outlet and the inlet, respectively, and the inner and outer pipes define an annular space therebetween. A cross-flow member may be coupled with the inner pipe and may define a flowpath fluidly coupled with the fluid passage via the radial opening. A vane and the cross-flow member may be disposed in the annular space and configured to at least partially induce a swirling flow in a process fluid flowing through the annular space.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: January 23, 2018
    Assignee: Dresser-Rand Company
    Inventors: Pascal Lardy, Jose L. Gilarranz, William C. Maier