Pumped Fluid Temperature Responsive Patents (Class 417/292)
  • Patent number: 11332824
    Abstract: A method for reducing effluent buildup in a pumping exhaust system of a substrate processing system includes, during a substrate treatment process, arranging a substrate on a substrate support in a processing chamber; supplying one or more process gases to the processing chamber; supplying an inert dilution gas at a first flow rate to the pumping exhaust system; performing the substrate treatment process on the substrate in the processing chamber; evacuating reactants from the processing chamber using the pumping exhaust system. The method includes, after the substrate treatment process, supplying cleaning plasma including cleaning gas in the processing chamber during a cleaning process; and supplying the inert dilution gas at a second flow rate that is less than the first flow rate to the pumping exhaust system during the cleaning process.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 17, 2022
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Antonio Xavier, Steven Goza, Ramesh Chandrasekharan, Adrien LaVoie, Joseph Nesmith
  • Patent number: 11306953
    Abstract: A compressor includes a container provided with an oil reservoir which is provided at a bottom portion of the container to allow oil to be collected in the oil reservoir. In the container, an electric motor mechanism, a rotary shaft, a compression mechanism, and a frame which fixes the compression mechanism to the container are provided. In the frame, a suction port is formed to cause refrigerant having flowed into the space to flow into the compression mechanism, and each of a suction portion and a connection port of the suction pipe, is located at a position which is higher than or the same as the level of the rotary shaft as seen in a rotation axial direction A rib in a first flow passage extends downwards in the direction of gravity from the connection port, extends through an area located above the oil reservoir, and reaches the suction port.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 19, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takashi Moriyama, Hiroki Murakami, Hiroshi Yamamoto, Wahei Shingu
  • Patent number: 11209204
    Abstract: A heat pump system including a charge compensator having a liquid line port for an inflow of a refrigerant into the charge compensator and for an outflow of the refrigerant from the charge compensator. The heat pump system further includes an isolation valve configured to control flows of the refrigerant to and from the charge compensator through a liquid line piping of the heat pump system based on whether the heat pump system is operating in a cooling mode, a defrost mode, or a heating mode, where the liquid line port is fluidly coupled to the liquid line piping of the heat pump system.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: December 28, 2021
    Assignee: Rheem Manufacturing Company
    Inventor: Sivakumar Gopalnarayanan
  • Patent number: 10928108
    Abstract: A compressor may include a shell assembly, a compression mechanism and a conduit. The shell assembly may include a fitting through which fluid is received from outside of the compressor. The compression mechanism may be disposed within a chamber defined by the shell assembly. The conduit may extend through the chamber between the fitting and a suction inlet of the compression mechanism and transmit at least a portion of the fluid from the fitting to the suction inlet.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: February 23, 2021
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Matthew Thomas Piscopo
  • Patent number: 10882509
    Abstract: A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: January 5, 2021
    Assignee: Cummins, Inc.
    Inventors: Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
  • Patent number: 10828659
    Abstract: A window sealing system and method for use in sealing insulating glass units (IGUs) is disclosed herein. The system includes an articulating arm having a plurality of members and arms to allow movement about multiple axes defined by the articulating arm, and a sealant dispensing apparatus releasably couplable to the articulating arm. The sealant dispensing apparatus comprises a pivotable dispensing apparatus for dispensing sealant onto an IGU. The system further including a vision system, coupled to the sealant dispensing apparatus, for monitoring physical properties of the sealant during sealant application.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: November 10, 2020
    Assignee: GED Integrated Solutions, Inc.
    Inventors: John Grismer, Paul A. Hofener, Brady S. Jacot, Steven W. Pesek, William A. Briese
  • Patent number: 10830518
    Abstract: A heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system, having a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor via a condenser, an expansion valve and an evaporator to the compressor, wherein the compressor has in its electrical circuit a current-limiting apparatus capable of limiting the current within 6 milliseconds after the heat cycle system enters into an abnormal operation state.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: November 10, 2020
    Assignee: AGC Inc.
    Inventors: Katsuya Ueno, Hidekazu Okamoto, Shigeo Kajitani, Tetsuo Otsuka, Masamichi Ipponmatsu
  • Patent number: 10533468
    Abstract: A valve group (10) is housed in a duct (40) of a pressurized oil circuit of a vehicle. The valve group (1) extends along an axis (X-X) including a valve body (11) axially fixed to the conduit (40) and an obturator (15) fitted axially movably, on the valve body (11). The obturator (15) has an exchanger aperture (153) through which oil flows to a heat exchanger (3) in the circuit and an auxiliary aperture (152) through which the oil flows to an auxiliary component of the circuit. The valve group (10) includes a pair of elastically yieldable elements (180) of a material selected from among the shape-memory alloys, operatively connected between the valve body (11) and obturator (15), and suitable, as a function of the oil temperature and/or the oil pressure, to axially move and to maintain the obturator (15) in a predefined axial position.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: January 14, 2020
    Assignee: UFI FILTERS S.p.A.
    Inventor: Giorgio Girondi
  • Patent number: 10378540
    Abstract: A compressor may include a first scroll, a second scroll and a modulation system. The first scroll may include a first endplate and a first spiral wrap. The second scroll may include a second endplate and a second spiral wrap interleaved with the first spiral wrap and cooperating to form a plurality of working fluid pockets therebetween. The modulation system may include a temperature-responsive displacement member that actuates in response to a temperature within a space rising above a predetermined threshold. Actuation of the displacement member may be controlled to control a capacity of the compressor.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: August 13, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Robert C. Stover
  • Patent number: 10180138
    Abstract: A system for controlling capacity of a compressor comprises a minimum determination module (204) selectively increasing a minimum capacity of a compressor when a temperature of the compressor is greater than a first predetermined temperature; and a control module (104) increasing an actual capacity of the compressor in response to an increase in the minimum capacity. A method for controlling capacity of a compressor is also disclosed. The system and method modulate the capacity of the compressor according to the different temperatures.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: January 15, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Keith Michael Knippen, Guoping Wu, Richard Allen Miu, Michael J. Monnin
  • Patent number: 10151513
    Abstract: The invention discloses an expansion compressor apparatus and an air conditioner having the same, wherein the expansion compressor apparatus includes: an expansion cylinder, a compression cylinder, and a connecting shaft, an expansion cylinder air suction passage communicated with an air suction cavity of the expansion cylinder being provided on the expansion cylinder, the expansion compressor apparatus further includes: a control cylinder, the control cylinder being provided with a control cylinder air suction passage and a control cylinder air exhaust passage, both the control cylinder air suction passage and the control cylinder air exhaust passage being provided in a radial direction of the control cylinder, and a communication passage being provided between the control cylinder air exhaust passage and the expansion cylinder air suction passage. The apparatus effectively solves the problem in the prior art that a high-pressure fluid exerts an impact force in an axial direction on a fan-shaped cam.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 11, 2018
    Assignee: GREE GREEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
    Inventors: Zhili Liang, Yusheng Hu, Jia Xu, Liping Ren
  • Patent number: 9732755
    Abstract: A compressor crankshaft assembly includes a crankshaft and an eccentric drive pin extending from one end of the crankshaft. The shape of the drive pin viewed into the exposed end of the drive pin is defined by the intersection of a first cylinder that is coaxial with the axis of a substantially cylindrical orbital bearing journaled and installed to receive the eccentric drive pin and a second cylinder that is coaxial with the axis of a substantially cylindrical main bearing journaled and installed to rotatably receive the crankshaft, such that the area defined by the intersecting portion is less than the area defined by either cylinder.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: August 15, 2017
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Jerry Allen Rood, Michael Gerard Benco, Scott Joseph Smerud, Wayne Gerard Gorski, Keith Adam Novak
  • Patent number: 9688260
    Abstract: A vehicle includes an air compressor system for supplying compressed air to an air consuming circuit, wherein the vehicle includes an arrangement for determining that the vehicle is coasting. The compressor system is controllable to deliver compressed air at a first power rate and at least at a second higher power rate, and it is controlled to deliver compressed air at the second higher power rate when it is determined that the vehicle is coasting. A method for operating an air compressor system for such a vehicle is also provided.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: June 27, 2017
    Assignee: Volvo Truck Corporation
    Inventors: Luc Aixala, Christophe Long, Philippe Le Brusq
  • Patent number: 9297296
    Abstract: Methods and systems are provided for discharging condensate from a turbocharger arrangement of an internal combustion engine. Specifically, in on example, condensate may be drained from a condensate reservoir by opening a drain valve coupled to the condensate reservoir. Further, the drain valve may be closed responsive to engine operating conditions indicating the condensate reservoir has been completely drained.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: March 29, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Andreas Kuske, Christian Winge Vigild, Daniel Roettger
  • Patent number: 9272602
    Abstract: A method for controlling torque of an air conditioner compressor is disclosed. In one example, the air conditioner compressor is a variable displacement compressor. The method may provide may improve vehicle acceleration response while at the same time providing cooling capacity to a vehicle cabin.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 1, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Jeffrey Allen Doering, Hugh Hamilton, Brent Jacobsen, Steve Pryor Perry
  • Publication number: 20150118076
    Abstract: A thermal-valve assembly for a compressor including a partition plate having a first bore formed therethrough is provided. The thermal-valve assembly may include a body having a wall extending from and surrounding a bottom wall. The bottom wall may include a first surface defining a valve seat, a second surface formed on an opposite side of the bottom wall than the first surface and facing the partition plate, and a second bore extending through the bottom wall between the first surface and the second surface and aligned with the first bore. A projection may extend from the second surface and may be attached to the partition plate. A valve element may be received by the body and may be supported on the valve seat between an open state permitting communication through the second bore and a closed state preventing communication through the second bore.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: Emerson Climate Technologies, Inc.
    Inventor: Walter T. Grassbaugh
  • Patent number: 8961149
    Abstract: A method for controlling an automatic stall-prevention of a rotation-speed-regulated centrifugal fan. A control automatics is controlled by an automation system of the process wherein, the control automatics stalling is detected from a function of the electric current, voltage and frequency going to the motor of the centrifugal fan.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: February 24, 2015
    Assignee: Runtech Systems Oy
    Inventors: Jouni Mussalo, Mauri Vuohelainen
  • Patent number: 8789616
    Abstract: Apparatus and a method are provided for inhibiting the propagation of a flame front that is ignited by a pumping mechanism which draws a waste stream from a process chamber. The apparatus comprises a foreline for conveying the waste stream which is drawn from the process chamber to the pumping mechanism. The foreline comprises an isolation valve for selectively isolating the pumping mechanism from the process chamber and a bypass positioned around the isolation valve. The apparatus further comprises a controller for actuating the isolation valve. The controller is configured to cause the isolation valve to be closed when the waste stream is initially drawn from the process chamber. During which time the waste stream is conveyed to the pumping mechanism via the bypass, the bypass comprises means for inhibiting propagation of a flame front therethrough.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: July 29, 2014
    Assignee: Edwards Limited
    Inventor: Christopher Mark Bailey
  • Patent number: 8721301
    Abstract: A method and apparatus for blowing down a compressed air system when temperature is at or below a predefined temperature threshold is provided. Temperature sensors in the compressed air system monitor temperature and a control processor determines when the temperature is at or below the predefined temperature threshold. When it is determined temperature is at or below the predefined temperature threshold, the control processor operates a solenoid blow-down valve that depressurizes the compressed air system.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: May 13, 2014
    Assignee: Quincy Compressor LLC
    Inventors: Yan Tang, Steven DeWayne Centers
  • Publication number: 20140044567
    Abstract: A reciprocating pump comprises a cylinder, an inlet check valve, a piston, an outlet check valve and a purge circuit. The cylinder has a first end and a second end. The inlet check valve is disposed proximate a first end of the cylinder. The piston is disposed within the cylinder between the inlet check valve and the second end. The outlet check valve is disposed within the piston. The purge circuit extends across the inlet check valve and the outlet check valve to fluidly couple the first end and the second end.
    Type: Application
    Filed: April 25, 2012
    Publication date: February 13, 2014
    Applicant: Graco Minnesota Inc.
    Inventors: Mark L. Bauck, Zaixing You, Xueshui Wu, Clinton Craig Grandahl, JR.
  • Patent number: 8616856
    Abstract: In a water injection air compressor including a compressor main body for compressing air, a water-feed line for feeding water to an actuation chamber in the compressor main body, an air release valve for releasing the compressed air from the compressor main body, and a control panel for executing an on-load operation mode in which water is fed into the actuation chamber and an air release valve is closed and a no-load operation mode in which the water is fed into the actuation chamber and the air release valve is opened, wherein the control panel further executes a dry operation mode in which the water is prevented from being fed into the actuation chamber and with the air release valve is opened.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: December 31, 2013
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Takehiro Matsuzaka, Hiroshi Ohta
  • Patent number: 8579604
    Abstract: An improved floating apparatus for scroll compressors is disclosed, which is a multi-function device integrating a temperature protection mechanism, a pressure protection mechanism and a backflow-proof mechanism and therefore substantially is a floating seal member with overheating protection, high pressure protection and backflow-proof capabilities. In detail, the present disclosure provides a floating apparatus for scroll compressors that not only can be manufactured easily, but also capable of distributing the acting force resulting from the gliding block for providing better sealing effect while preventing the scroll compressors from being damaged by high temperature and high pressure.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: November 12, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Kun-Yi Liang, Yu-Choung Chang, Shu-Er Huang, Chun-Chung Yang, Chi-Hsing Chen, Yueh-Ju Tang
  • Patent number: 8425204
    Abstract: Pump, for example for pumping lubricating oil in an internal combustion engine, more particularly a multi-stroke vane cell pump, with a rotor and vanes which can slide at least radially in rotor slots and have vane heads that slide along a stroke contour, the stroke contour having a radial outlet that can be closed by a valve device.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: April 23, 2013
    Assignee: LuK Automobiltechnik GmbH & Co. KG
    Inventors: Heiko Schulz-Andres, Dirk Kamarys, Kornelia Frowein
  • Patent number: 8333573
    Abstract: Apparatus for detecting a flammable atmosphere within a compressor during operation thereof is provided. The apparatus comprising a test chamber which is selectably connected between the compressor and an exhaust duct of the compressor using isolation device; an ignition device which is located within the test chamber for igniting any flammable fluid mixture present therein; and sensor associated with the test chamber for monitoring a parameter indicative of combustion within the test chamber and for outputting a signal indicative of the parameter to a controller.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: December 18, 2012
    Assignee: Edwards Limited
    Inventors: Clive Marcus Lloyd Tunna, Donovan Collins, Roland Paul Gregor Kusay, Richard Wakefield
  • Publication number: 20120315160
    Abstract: A mechanical coolant pump for an internal combustion engine includes a main pump body configured to be stationary. A pump wheel is rotatably supported by the main pump body. The pump wheel comprises a central axial inlet opening. The pump wheel is configured to pump a coolant from the central axial inlet opening radially outwardly. A valve disk configured to be axially shiftable is arranged in the pump wheel. An actuator is configured to actuate the valve disk so as to close the central axial inlet opening in a closed position of the valve disk.
    Type: Application
    Filed: February 11, 2010
    Publication date: December 13, 2012
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Jean-Michel Durand, Achim Broemmel
  • Patent number: 8308446
    Abstract: A method and apparatus for blowing down a compressed air system when temperature is at or below a predefined temperature threshold is provided. Temperature sensors in the compressed air system monitor temperature and a control processor determines when the temperature is at or below the predefined temperature threshold. When it is determined temperature is at or below the predefined temperature threshold, the control processor operates a solenoid blow-down valve that depressurizes the compressed air system.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: November 13, 2012
    Assignee: Quincy Compressor LLC
    Inventors: Yan Tang, Steven DeWayne Centers
  • Patent number: 8172552
    Abstract: A variable displacement compressor that draws refrigerant from a suction pressure zone and discharges the refrigerant to a discharge pressure zone, and controls displacement according to a pressure in a control pressure chamber. The compressor has a cam body, pistons, a supply passage, a release passage, and an on-off valve. The inclination angle of the cam body is changeable based on the pressure in the control pressure chamber. A piston reciprocates in each cylinder bore as the cam body rotates. The supply passage supplies the refrigerant in the discharge pressure zone to the control pressure chamber. The release passage releases the refrigerant in the control pressure chamber to the suction pressure zone. The on-off valve selectively opens and closes the release passage in response to changes of the temperature. The on-off valve shuts off the release passage when the temperature is equal to or higher than a predetermined temperature.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: May 8, 2012
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Tetsuhiko Fukanuma, Hiroaki Kayukawa
  • Publication number: 20110056370
    Abstract: The variable displacement swash plate compressor includes a housing, a drive shaft, a swash plate, a piston, a bleed passage, a supply passage and a low-melting member. The housing has a cylinder bore, a suction chamber, a discharge chamber and a crank chamber. The swash plate is supported in the crank chamber by the drive shaft and inclination angle of the swash plate is adjustable. The piston is reciprocally movably received in the cylinder bore. The bleed passage is formed in the housing in communication with the crank chamber and the suction chamber. The supply passage is formed in the housing in communication with the discharge chamber and the crank chamber. The low-melting member is disposed in the bleed passage so as to restrict fluid flow therethrough and has a lower melting point than the housing. When the low-melting member is melted, an opening of the bleed passage is increased.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 10, 2011
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masakazu Murase, Masahiro Kawaguchi, Masaki Ota, Motoaki Okuda, Hiroshi Kubo, Yuki Morikage, Masaki Inoue, Takayuki Kato, Takahiro Sugioka, Shino Okubo
  • Publication number: 20100074767
    Abstract: A machine hydraulic pump system including at least one hydraulic pump driven to pressurize hydraulic fluid. A drain port is in fluid communication with an interior lubricating cavity of the pump. A selectively activatable flow control member is in flow-controlling relation to the drain port. The selectively activatable flow control member is adapted to move from a fluid containment condition to a fluid withdrawal condition prior to activation of the pump to at least partially evacuate lubricating liquid from the interior of the pump in response to the temperature of the lubricating liquid dropping below a predefined lower limit.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Applicant: Caterpillar Inc.
    Inventors: Bryan E. Nelson, Kirat Shah
  • Patent number: 7559750
    Abstract: Provided is an overheating protection apparatus of a scroll compressor which comprises: a bypass passage formed in a fixed scroll, for connecting a high pressure chamber to a low pressure chamber; a valve assembly installed on the bypass passage, for opening/closing the bypass passage; and a heat distortion member for bypassing gas of high temperature and high pressure inside the high pressure chamber to the low pressure chamber by driving the valve assembly toward a direction of opening/closing the bypass passage when a temperature inside the high pressure chamber rises more than an established value. According to this, when a discharged gas rises to an abnormal high temperature, gas inside the high pressure chamber is bypassed to the low pressure chamber, thereby protecting the compressor and also improving reliability thereof.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: July 14, 2009
    Assignee: LG Electronics Inc.
    Inventor: Chan-Hwa Jeong
  • Patent number: 7503755
    Abstract: A baffle plate assembly has a baffle plate comprising a back plate and a partition wall. The back plate has an inner space and is attached to the housing of the compressor. The partition wall is formed on the back plate to divide the inner space of the back plate into at least one upper guiding channel communicating with the compressing chamber in the compressor and at least one lower guiding channel communicating with the motor chamber of the compressor. Accordingly, the working fluid can be respectively led into the compressing chamber and the motor chamber of the compressor through the at least one upper guiding channel and the at least one lower guiding channel in a certain proportion. Consequently, the compressor will operate at an optimal condition.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: March 17, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Feng Lai, Yu-Choung Chang, Kun-I Liang, Ann Huang
  • Patent number: 7476089
    Abstract: A scroll compressor having an overheat preventing unit includes a casing; a driving motor installed in the casing and generating a driving force; a compression unit connected with the driving motor by a rotating shaft, and compressing a fluid and discharging it externally when the driving motor is driven; and an overheat preventing unit installed at one side of the compression unit and sensing a temperature of a gas compressed in a compressing chamber of the compression unit, and bypassing a high temperature and high pressure gas of a high pressure chamber to a low pressure chamber if the sensed temperature of the gas goes up beyond a pre-set value.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 13, 2009
    Assignee: LG Electronics Inc.
    Inventor: Su-Chul Kim
  • Publication number: 20080317607
    Abstract: A method and apparatus for blowing down a compressed air system when temperature is at or below a predefined temperature threshold is provided. Temperature sensors in the compressed air system monitor temperature and a control processor determines when the temperature is at or below the predefined temperature threshold. When it is determined temperature is at or below the predefined temperature threshold, the control processor operates a solenoid blow-down valve that depressurizes the compressed air system.
    Type: Application
    Filed: April 4, 2008
    Publication date: December 25, 2008
    Inventors: Yan Tang, Steven DeWayne Centers
  • Patent number: 7043412
    Abstract: A method of designing a vehicle air system is provided. This method includes the use of a computer to simulate operation of a proposed vehicle air system over a time period, wherein the proposed vehicle air system comprises an air compressor and a pneumatically operable device, and wherein the step of simulating operation of a proposed vehicle air system over a time period includes: simulating selective operation of the air compressor to add air to the proposed vehicle air system; and simulating selective operation of the pneumatically operable device to exhaust air from the proposed vehicle air system. The computer is then used to calculate a duty cycle of the air compressor over the time period and to output the duty cycle.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: May 9, 2006
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: Paul Schultz
  • Patent number: 6887046
    Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: May 3, 2005
    Assignee: Flowork Systems II LLC
    Inventors: Walter Otto Repple, John Robert Lewis Fulton
  • Publication number: 20040057841
    Abstract: Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means to direct hot gases to a location that receives cooled gases from the aftercooler. The hot gases are used at the location to heat the cooled gases when ambient temperature is at or below freezing, and are used downstream from the aftercooler when moisture freezes in the aftercooler.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 25, 2004
    Applicant: WESTINGHOUSE AIR BRAKE COMPANY
    Inventors: Walter E. Goettel, Brian L. Cunkelman, Daniel G. Wagner, Roger Drummond
  • Patent number: 6709244
    Abstract: A scroll type machine incorporates a unique system for monitoring the status of a valve which is used to control the capacity of the compressor. The valve functions to open and close a fluid passage between two areas of the compressor for capacity modulation. By monitoring the temperature of the fluid after the valve, it can be determined whether or not the valve is functioning. If the temperature fluctuates, the valve is functioning. If the temperature is constant, the valve is not operating properly. Another embodiment monitors the pressure within the fluid line controlled by the valve.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: March 23, 2004
    Assignee: Copeland Corporation
    Inventor: Hung Pham
  • Patent number: 6685441
    Abstract: A scroll compressor of simple structure and low production cost which can be protected when abnormal pressure state or abnormal temperature state of the compressor comprises: a sealed casing including a first chamber for forming a low pressure and a second chamber for forming a high pressure which are divided by a separating panel; a driving unit built in the casing for generating a driving force; a compressed unit connected to the driving unit via a rotating shaft for compressing and discharging fluid when the driving unit is operated; and a protecting device mounted on one side of the separating panel for bypassing the fluid of high pressure or of high temperature in the second chamber to the first chamber when a pressure difference or temperature difference between the first and second chambers is larger than a set value.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: February 3, 2004
    Assignee: LG Electronics Inc.
    Inventor: Tae-Hee Nam
  • Patent number: 6663352
    Abstract: A method and system for dynamically determining a vapor pressure of a fluid passing through a pumping system by diverting a portion of the fluid from the pumping system into a chamber, isolating the diverted fluid from the pumping system, evacuating the chamber and measuring the vapor pressure of the isolated fluid. In another aspect of the invention, a temperature compensation device is included in the chamber to alter the chamber fluid temperature to insure that the chamber fluid temperature is substantially the same as the fluid in the pumping system.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: December 16, 2003
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Eugene P. Sabini, Oakley Henyan
  • Patent number: 6651441
    Abstract: A fluid flow system for a gas turbine engine provides combustion fuel to a main pump and an actuator pump significantly reducing heat generation at low flow demand, while regulating actuator flow temperature at high flow demand. Fuel flow from the actuator pump in excess of the actuators needs is directed through an actuator minimum pressure valve and into a thermal bypass valve (TBV.) Depending upon the temperature of the fuel, the TBV determines the path of the excess actuator pump fluid flow. The TBV divides the fuel flow between being recirculated to the actuator pump inlet and the main pump output flow path to the engine fuel input conduit. The engine actuators are thereby assured of receiving flow which preclude freezing of water entrained in the fuel. When there is minimal concern with the possibility of freezing water entrained in the fuel, the TBV passes a greater percentage of fuel through to join together in the engine fuel input conduit.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: November 25, 2003
    Assignee: Hamilton Sundstrand
    Inventors: Charles Reuter, Gerald P. Dyer, Todd Haugsjaahabink, Satish Shah
  • Patent number: 6648609
    Abstract: The invention is a device and method in a high-pressure chromatography system, such as a supercritical fluid chromatography (SFC) system, that uses a pump as a pressure source for precision pumping of a compressible fluid. The preferred exemplary embodiment comprises a pressure regulation assembly installed downstream from a compressible fluid pump but prior to combining the compressible flow with a relatively incompressible modifier flow stream. The present invention allows the replacement of an high-grade SFC pump in the compressible fluid flow stream with an inexpensive and imprecise pump. The imprecise pump becomes capable of moving the compressible fluid flow stream in a precise flow rate and pattern. The assembly dampens the damaging effects of an imprecise pump, such as large pressure oscillations caused by flow ripples and noisy pressure signals that do not meet precise SFC pumping requirements.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: November 18, 2003
    Assignee: Berger Instruments, Inc.
    Inventors: Terry A. Berger, Kimber D. Fogelman, Kenneth Klein, L. Thompson Staats, III, Mark Nickerson, Paul F. Bente, III
  • Patent number: 6644934
    Abstract: Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means to direct hot gases to a location that receives cooled gases from the aftercooler. The hot gases are used at the location to heat the cooled gases when ambient temperature is at or below freezing, and are used downstream from the aftercooler when moisture freezes in the aftercooler.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: November 11, 2003
    Assignee: Westinghouse air Brake Technologies Corporation
    Inventors: Walter E. Goettel, Brian L. Cunkelman, Daniel G. Wagner, Roger Drummond
  • Publication number: 20030143084
    Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 31, 2003
    Inventors: Walter Otto Repple, John Robert Lewis Fulton
  • Publication number: 20030063982
    Abstract: A scroll type machine incorporates a unique system for monitoring the status of a valve which is used to control the capacity of the compressor. The valve functions to open and close a fluid passage between two areas of the compressor for capacity modulation. By monitoring the temperature of the fluid after the valve, it can be determined whether or not the valve is functioning. If the temperature fluctuates, the valve is functioning. If the temperature is constant, the valve is not operating properly. Another embodiment monitors the pressure within the fluid line controlled by the valve.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 3, 2003
    Inventor: Hung Pham
  • Patent number: 6540484
    Abstract: A thermostat is positioned within a scroll compressor such that a thermostat switch is positioned in the non-orbiting scroll, and a body of the thermostat extends through the crankcase. The thermostat communicates with a heater associated with a motor protector circuit. Current is directed to the heater causing the heater to more promptly stop operation of the scroll compressor. A bias element holds the thermostat securely within the crankcase and non-orbiting scroll such that it will not rattle during operation. Several embodiments of the thermostat are disclosed.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: April 1, 2003
    Assignee: Scroll Technologies
    Inventors: Jason Hugenroth, James E. Barnes
  • Publication number: 20030035736
    Abstract: A scroll compressor of simple structure and low production cost which can be protected when abnormal pressure state or abnormal temperature state of the compressor comprises: a sealed casing including a first chamber for forming a low pressure and a second chamber for forming a high pressure which are divided by a separating panel; a driving unit built in the casing for generating a driving force; a compressed unit connected to the driving unit via a rotating shaft for compressing and discharging fluid when the driving unit is operated; and a protecting device mounted on one side of the separating panel for bypassing the fluid of high pressure or of high temperature in the second chamber to the first chamber when a pressure difference or temperature difference between the first and second chambers is larger than a set value.
    Type: Application
    Filed: June 17, 2002
    Publication date: February 20, 2003
    Applicant: LG Electronics Inc.
    Inventor: Tae-Hee Nam
  • Publication number: 20030002994
    Abstract: A flow controller for use in microelectromechanical systems. The principal components of the controlled are a microvalve and sensor which are micromachined on one surface of a substrate that is formed with a fluid flow channel. The microvalve includes a shape memory alloy actuator element that is operated by a feedback signal from a control circuit. The sensor can be a fluid flow rate sensor or a fluid temperature sensor or a fluid pressure sensor. Conditions in the channel are sensed for generating the feedback signal.
    Type: Application
    Filed: March 7, 2002
    Publication date: January 2, 2003
    Inventors: A. David Johnson, Vikas Gupta
  • Patent number: 6499963
    Abstract: An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is controlled by varying the orientation of the vanes. Orientation of the vanes is effected by a wax-type thermostat, which senses coolant temperature: flow is increased when the coolant is hot, and decreased as the coolant cools. The variable guide vanes are mounted for pivoting about radial axes, and are located just upstream from the pump impeller.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: December 31, 2002
    Assignee: Flowork Systems Inc.
    Inventors: Walter Otto Repple, John Robert Lewis Fulton
  • Publication number: 20020187050
    Abstract: A compressor with a capacity modulation system includes a compression chamber, a rotatable shaft within the compression chamber, and a roller mounted on the shaft in contact with a wall of the compression chamber. A suction channel is in fluid communication with the compression chamber for providing fluid at a suction pressure and a discharge channel is in fluid communication with the compression chamber for removing fluid at a discharge pressure. A re-expansion channel adjacent to the compression chamber has a first end forming a re-expansion port in the wall of the compression chamber. A re-expansion chamber is connected to the re-expansion channel. A valve disposed in the re-expansion channel is movable between a first position, in which the valve allows fluid communication between the compression chamber and the re-expansion chamber, and a second position, in which the valve prevents fluid communication between the compression chamber and the re-expansion chamber.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 12, 2002
    Applicant: Bristol Compressors, Inc.
    Inventors: John K. Narney, David T. Monk, Joseph F. Loprete
  • Patent number: 6457948
    Abstract: A scroll type machine incorporates a unique system for monitoring the status of a valve which is used to control the capacity of the compressor. The valve functions to open and close a fluid passage between two areas of the compressor for capacity modulation. By monitoring the temperature of the fluid after the valve, it can be determined whether or not the valve is functioning. If the temperature fluctuates, the valve is functioning. If the temperature is constant, the valve is not operating properly. Another embodiment monitors the pressure within the fluid line controlled by the valve.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: October 1, 2002
    Assignee: Copeland Corporation
    Inventor: Hung Pham