Plural Passages With Sequential Or Reverse Fluid Control Patents (Class 415/38)
  • Patent number: 11156152
    Abstract: A waste heat recovery system for recovering waste heat of in internal combustion engine includes a turbine expander. The turbine expander includes a turbine blade, a shaft coupled to and rotatable by the turbine blade, and a nozzle assembly. The nozzle assembly includes a nozzle block disposed about the shaft and adjacent the turbine blade, a first nozzle component coupled to the nozzle block, and a second nozzle component coupled to the nozzle block. The first nozzle component defines a first nozzle having a first geometrical configuration. The second nozzle component defines a second nozzle having a second geometrical configuration that is different from the first geometrical configuration. The waste heat recovery system also includes a flow control device in fluid communication with the turbine expander. The waste heat recovery system further includes a controller in communication with the flow control device.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: October 26, 2021
    Assignee: BorgWarner Inc.
    Inventor: Frederick Michael Huscher
  • Patent number: 10790723
    Abstract: A system and method in at least one embodiment for separating fluids including liquids and gases into subcomponents by passing the fluid through a vortex chamber into an expansion chamber and then through at least a portion of a waveform pattern present between at least two rotors and/or disks. In further embodiments, a system and method is offered for harnessing fields created by a system having rotating rotors and/or disks having waveform patterns on at least one side to produce current within a plurality of coils. In at least one embodiment, the waveform patterns include a plurality of hyperbolic waveforms axially aligned around a horizontal center of the system.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: September 29, 2020
    Assignee: QWTIP LLC
    Inventor: Whitaker Ben Irvin, Sr.
  • Publication number: 20080143001
    Abstract: A conduit system for a lithographic apparatus is disclosed, the conduit system including a conduit configured to guide a liquid or liquid-gas mixture, and a gas injection nozzle configured to introduce a gas in the liquid or liquid-gas mixture to at least partially absorb pressure peaks or waves in the liquid or liquid-gas mixture. In an embodiment, the gas injection nozzle may be arranged in a pump of the conduit system. The pump further includes a pump inlet, a pump outlet and a pump chamber between the pump inlet and the pump outlet arranged for compression of the liquid or liquid-gas mixture.
    Type: Application
    Filed: October 18, 2007
    Publication date: June 19, 2008
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Martinus Wilhelmus Van Den Heuvel, Johannes Christiaan Leonardus Franken, Josephus Cornelis Johannes Antonius Vugts
  • Patent number: 7210295
    Abstract: A wastegated turbocharger includes a turbine wheel mounted to a shaft for rotation within a turbine housing and a compressor wheel mounted to the shaft for rotation within a compressor housing. The compressor housing has mounted thereto a wastegate actuator command valve. A secondary boost air outlet passage is disposed in fluid flow communication with the wastegate actuator command valve and the compressor outlet volute. The secondary boost air outlet passage extends into the compressor outlet volute so that an inlet opening of the passage is spaced from the surface of the compressor outlet volute.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: May 1, 2007
    Assignee: Holset Engineering Company, Ltd.
    Inventor: James Alexander McEwen
  • Patent number: 7194863
    Abstract: One embodiment of the invention provides a turbine control system that adjusts the control thresholds of two-position valves, which provide propellant to the turbine, based on turbine load so as to compensate for increased turbine speed overshoot at low load and the increased turbine speed undershoot at high load. These two-position on-off modulated valves are used in a bang-bang (fully open or fully closed) regulation scheme to eliminate or minimize speed droop by using variable speed bounds implemented as a function of load.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: March 27, 2007
    Assignee: Honeywell International, Inc.
    Inventors: Evgeni Ganev, Mike S. Koerner, Chung Y. Liu
  • Patent number: 6336322
    Abstract: An object of the present invention is to provide a pump turbine capable of improving the stability of the governor by fully lessening the influences by the S-characteristics even when the running point of the pump turbine is in the S-characteristics region.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: January 8, 2002
    Assignees: Hitachi, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Takao Kuwabara, Kei Katayama, Hiroto Nakagawa, Haruki Hagiwara
  • Patent number: 5346360
    Abstract: In a steam turbine control system, the mechanical/hydraulic input to a mechanical control link within a servo enclosure controlling the steam supply valves to the turbine is replaced by an electrical/hydraulic control system while retaining all mechanical/hydraulic connections between the servo enclosure and the steam valves. A hydraulic cylinder is coupled to a control link in the servo enclosure which operates the steam valves. The cylinder is actuated by a servo control valve for modulating the flow of steam to the turbine. A fast trip valve forms part of the hydraulic fluid supply to the piston and is movable in response to a cutoff of hydraulic pressure fluid to the shut-off valve to shift and deadend the hydraulic fluid supply to the piston whereby, in response to a system upset, the shut-off valve instantaneously stops the supply of hydraulic fluid to the piston and thereby instantaneously actuates the steam valves to preclude flow of steam to the turbine.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: September 13, 1994
    Assignee: General Electric Company
    Inventor: Edward J. Cooper
  • Patent number: 4850793
    Abstract: Existing steam chests having a plurality of valves which are incapable of operation by individual high pressure valve actuators may be modified to provide apparatus for transferring operation of a steam turbine at less than a full load betweeen a full-arc admission mode and a partial-arc admission mode. For those steam chests of the internal bar lift type, the outboard valves are disconnected from the bar and coupled directly to respective servomotors. As such, the pre-existing servomotor utilized to lift the internal bar, as well as the additional servomotors for the outboard valves, are operatively connected to a conventional control means. In those steam chests of the external bar lift type, an additional servomotor is coupled through an actuator rod to the pre-existing pivot point of the external bar, and is thereafter controlled by conventional means for interactively activating the pre-existing servomotor and the additional servomotor.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: July 25, 1989
    Assignee: Westinghouse Electric Corp.
    Inventors: George J. Silvestri, Jr., Scott W. Kendall
  • Patent number: 4753570
    Abstract: A bidirectional pump has a chamber in communication both with a drain conduit and a conduit for delivering washing liquid into a wash chamber. The drain conduit has a port communicating between the pump chamber and a drain outlet. An opening communicates between the delivery and drain conduits and is selectively sealed by a deformable diaphragm. With the pump rotating in a first direction and the liquid being delivered principally through the delivery conduit by the pump, a pressure differential is established across the diaphragm thereby urging a portion of the diaphragm sealingly against the port to prevent delivery of washing liquid through the drain conduit as during a rinsing cycle of the dishwasher. Reverse rotation of the pump reverses the pressure balance to urge the sealing portion of the diaphragm away from the drain port, thereby permitting flow through the drain conduit for suitable disposal of the used washing liquid.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: June 28, 1988
    Assignee: Whirlpool Corporation
    Inventor: Wilbur W. Jarvis
  • Patent number: 4714401
    Abstract: A governing mode change-over apparatus of a steam turbine comprising a switching arrangement between a throttle governing mode and a nozzle governing mode, and an arrangement for controlling a load by selectively subjecting one of the steam control valves to load control during the governing mode switching, whereby the turbine is switched from one of the throttle and the nozzle governing modes to another with a limited fluctuation of the load.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: December 22, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Hiraku Ikeda, Hidesumi Kuwashima
  • Patent number: 4653977
    Abstract: A pump for pumping and mixing of liquids containing suspensions comprises a housing having an impeller rotatable in both directions and a central inlet. The housing is provided with two outlets which are closed alternatively by a ball, depending on the rotation direction of the impeller.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: March 31, 1987
    Assignee: Flygt Aktienbolag
    Inventor: Hjalmar Fries
  • Patent number: 4629394
    Abstract: A centrifugal main fuel pump (10') for a gas turbine engine has a housing (18') in which a centrifugal impeller (12') is mounted for rotation. The impeller discharges flow to a collector (20') and diffuser (22'). A low flow diffuser (26) has its inlet opening positioned closely adjacent the outer periphery of the impeller. Proper design and placement of the low flow diffuser ensures that a high percentage of the fluid energy available in the high velocity flow adjacent the impeller outer periphery is recovered as pressure rise. The low flow diffuser produces adequate fuel flow at the pressure necessary for engine light-off while the first mentioned diffuser recovers a lower pressure rise but is adapted to supply higher engine fuel flow demand in the normal range of operation. A check valve (34) prevents flow from the low flow diffuser from returning to the impeller. The check valve opens to allow the first mentioned diffuser to supply fuel when its discharge pressure exceeds that of the low flow diffuser.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: December 16, 1986
    Assignee: Chandler Evans Inc
    Inventor: Frank A. Leachman, Jr.
  • Patent number: 4622817
    Abstract: An improved hydraulic assist turbocharger system is provided of the type having an hydraulic turbine for supplementally driving a turbocharger during selected engine operating conditions when supplemental air flow to the engine is required. The improved system is adapted for improved engine starting during cold weather conditions by increasing the pressure of hydraulic fluid supplied to the hydraulic turbine during engine cranking and/or decreasing the viscosity of said hydraulic fluid, thereby accelerating the turbocharger rapidly to a rotational speed for supplying sufficient air flow to the engine for starting purposes.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: November 18, 1986
    Assignee: The Garrett Corporation
    Inventor: Robert J. Kobayashi
  • Patent number: 4604028
    Abstract: A control system for a steam turbine employs complementary-sized nozzle groups receiving steam in a sequence which employs the smallest possible sized group receiving steam from a control valve of the smallest possible capacity as the governing valve. All other control valves remain either fully open or fully closed. An optimum path may be followed to select a highest-efficiency transition between valve combinations.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: August 5, 1986
    Assignee: General Electric Company
    Inventors: Thomas L. Yeaple, James B. Wagner, Donald H. Hall
  • Patent number: 4600361
    Abstract: A pump is disclosed wherein, in order to provide switching ability between two different delivery outlets, a stator casing bounds two superimposed manifold chambers, each chamber being in communication with the pump impeller housing through a respective tangential conduit. The chambers are sealed from each other by an elastic membrane operative to selectively cut off valve seats in each manifold chamber for rotation of the pump impeller in either directions.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: July 15, 1986
    Assignee: Strada Cantonale
    Inventor: Carlo Bianco
  • Patent number: 4465443
    Abstract: In a pneumatically powered portable tool there is provided a speed governor and an overspeed safety device the purpose of which are to ensure a predetermined maximum speed by controlling the air inlet flow to the motor. A cup-shaped shell insert (28) is detachably mounted in the housing (10) to form with the latter an air supply passage (58) and to support the valve means (51,53) of the overspeed safety device. The top surface of the shell insert (28) is exposed through an aperture (57) in the housing (10) and carries the maximum speed marking of the tool.
    Type: Grant
    Filed: October 14, 1982
    Date of Patent: August 14, 1984
    Assignee: Atlas Copco Aktiebolag
    Inventor: Karl G. Karden
  • Patent number: 4325670
    Abstract: A sequence of activating and deactivating arcuate nozzle chambers which together form a structure for admitting steam into a steam turbine and directing it through turbine blades. At least one small and one large nozzle chamber are cooperatively activated and deactivated to provide maximum turbine efficiency. After minimum admission operation has been achieved, a small nozzle chamber disposed arcuately adjacent the activated nozzle chambers is increasingly activated as load is increased. When the small nozzle chamber has been fully activated and load on the turbine increases further, the large nozzle chamber is increasingly activated with load. At a predetermined degree of activation of the larger nozzle chamber, the small nozzle chamber is increasingly deactivated as the large nozzle chamber is increasingly activated. When the large nozzle chamber has been completely activated and the load on the turbine increases further, the small nozzle chamber is again increasingly activated as the load increases.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: April 20, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: George J. Silvestri, Jr.
  • Patent number: 4257234
    Abstract: In a turboset having a high-pressure turbine stage and at least another turbine stage mounted on foundation supports and largely disposed above a machine floor, the high-pressure turbine stage being connectible to main steam lines, a valve arrangement includes emergency-stop main-steam governing valves through the high-pressure turbine stage is connectible to the main steam lines, the emergency-stop main-steam governing valves being disposed forward of the head of the high-pressure turbine stage and below the machine floor, and including an upper foundation ceiling disposed approximately at the level of the machine floor and formed with beams from which the emergency-stop main-steam governing valves are thermally displaceably suspended.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: March 24, 1981
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventors: Werner Trassl, Gerhard Purr, Helmut Scheffczyk
  • Patent number: 4245464
    Abstract: A gas turbine engine has a compressor and power turbine driven by gas flow across a nozzle arrangement that includes a partial admission gate valve therein movable into and out of overlying relationship with a limited number of vanes of the nozzle in order to control power output therefrom during part load operation of the engine.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: January 20, 1981
    Assignee: General Motors Corporation
    Inventor: Alan L. Hitzelberger