Air Compressor, Cooler And Expander Type Patents (Class 62/401)
  • Patent number: 10556693
    Abstract: Disclosed is a method for ventilating a ram air channel for a vehicle—in particular an aircraft—including at least one heat exchanger. The ram air channel is provided with a jet pump including a plurality of compressed air inlets connected to a plurality of separate compressed air sources of the vehicle, and a plurality of compressed air outlet nozzles. At least two nozzles are independently connected to at least two separate compressed air sources of the vehicle.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: February 11, 2020
    Assignee: LIEBHERR-AEROSPACE TOULOUSE SAS
    Inventors: Cécile Bombled, Frédéric Sanchez
  • Patent number: 10526971
    Abstract: An integrated fuel and environmental control system is provided and includes a first heat exchanger in which fuel and oil thermally communicate and a second heat exchanger disposable in a super-cooled fluid flow. The second heat exchanger is receptive of at least one of the fuel and oil from the first heat exchanger whereby the at least one of the fuel and oil thermally communicate with the super-cooled fluid flow. The second heat exchanger is also receptive of a second fluid whereby the second fluid thermally communicates with the super-cooled fluid flow downstream from the thermal communication of the super-cooled fluid flow with the at least one of the fuel and oil.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: January 7, 2020
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Naison E. Mastrocola, Matthew Pess
  • Patent number: 10358223
    Abstract: An exhaust system for an aircraft galley chiller is provided. The exhaust system includes a galley having a chiller that includes an inlet, a condenser fan inlet, a condenser fan outlet proximate to chiller inlet, and a first flow of air through the condenser, an air ventilation outlet conduit that includes a second flow of air therethrough, and an ejector pump. The ejector pump includes a first airflow inlet, a second airflow inlet and an airflow outlet, wherein the first airflow inlet is coupled in flow communication with the condenser fan outlet, the second inlet is coupled in flow communication with the air ventilation outlet conduit. As the second airflow increases, the first velocity increases in a direction away from the galley chiller facilitating a decrease in temperature at the condenser fan inlet.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: July 23, 2019
    Assignee: The Boeing Company
    Inventors: Michael J. Dessero, Luong Hoang Le, Thomas J. Moran
  • Patent number: 10336159
    Abstract: A system comprising a cryogenic engine system and a refrigeration system, wherein the cryogenic engine system and the refrigeration system are mechanically and/or thermally coupled with each other. The refrigeration system is driven by the cryogenic engine system and the cryogenic engine system enhances cooling of the refrigeration system.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: July 2, 2019
    Assignee: DEARMAN ENGINE COMPANY LTD
    Inventors: Michael Ayres, Henry Clarke, Michael Dearman
  • Patent number: 10274229
    Abstract: A method and apparatus for cooling compressed air include the following. Compressed air is introduced into a vortex tube where cold air and warm air are generated. The cold air and warm air are introduced into a pressure vessel where the temperature and moisture of the compressed air are adjusted. The adjusted compressed air is fed to a downstream side of the pressure vessel. Before the generated cold air and warm air are introduced into the pressure vessel, the warm air is introduced into a pre-pressure vessel disposed at an upstream side of the pressure vessel. The cold air is introduced into a cooling tube or cooling chamber which is disposed inside the pre-pressure vessel which is disposed at the upstream side of the pressure vessel. The warm air is adjusted by cooling. The adjusted warm air is introduced into the pressure vessel from the pre-pressure vessel together with the cold air.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: April 30, 2019
    Assignee: Taiei Sangyo Co., Ltd.
    Inventor: Hiroyasu Kawamata
  • Patent number: 10216201
    Abstract: A pressure regulating system that is suited to regulate the pressure of a gas includes a regulating device suited to regulate the pressure of a first gas stream, provided with an inlet for the gas at a supply pressure and with an outlet for the gas at a regulated pressure that is lower than the supply pressure; a vortex tube suited to receive a gas stream through an inlet, separate it into a hot portion and a cold portion and deliver the hot and cold portions through corresponding outlets; a heat exchanger coupled with the vortex tube in order to heat the first gas stream before it flows into the regulating device; a recovery duct suited to collect a first portion of the first gas stream at a collection point located downstream of the heat exchanger and to convey it to the inlet of the vortex tube.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: February 26, 2019
    Assignee: Pietro Fiorentini SPA
    Inventors: Massimo Bodei, Armando Amadini
  • Patent number: 10202197
    Abstract: An aircraft air conditioning system comprising an ambient air supply line with a first end connected to an ambient air inlet and a second end connected to a mixing chamber. A first electrically driven ambient air compressor in the ambient air supply line compresses the ambient air flowing therethrough. A first ambient air branch line branches off from the ambient air supply line upstream of the first ambient air compressor and rejoins the supply line downstream of the air compressor. A second ambient air compressor in the first ambient air branch line compresses the ambient air flowing therethrough. A cabin exhaust air line has a first end connected to an air conditioned aircraft area. A cabin exhaust air turbine in the exhaust air line is driven by the exhaust air flowing through the cabin exhaust air line and is coupled to drive the second ambient air compressor.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 12, 2019
    Assignee: AIRBUS OPERATIONS GMBH
    Inventors: Holger Bammann, Frank Klimpel, Tim Giese
  • Patent number: 10150571
    Abstract: An on-board aircraft inert gas system includes a source of hydrocarbon, a source of gas comprising oxygen, and a first fluid flow path between the source of gas comprising oxygen and an inert gas output. A reactor is disposed along the first fluid flow path that reacts oxygen and hydrocarbon from the fuel tank gas space to produce an oxygen-depleted gas. A heat exchanger condenser removes some water from the oxygen-depleted gas. A water-permeable gas membrane separator receives the oxygen-depleted gas from the heat exchanger and outputs dried oxygen-depleted gas.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 11, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Haralambos Cordatos, Jonathan Rheaume
  • Patent number: 10144518
    Abstract: A combination includes a selectively driven fan and a bypass flow passage for bypassing the fan. The bypass flow passage communicates with a first check valve to allow air to flow from the bypass passage to a downstream location. A second check valve allows air driven by the fan to pass into a return passage and return to an inlet of the fan in the event that the discharge pressure from the fan overcomes a spring force associated with the second check valve. A heat exchanger pack and an environmental control system for use on an aircraft, and a method are all also disclosed.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: December 4, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Harold W. Hipsky
  • Patent number: 10137993
    Abstract: An air cycle machine for an environmental control system for an aircraft is provided. The air cycle machine includes a compressor configured to compress a first medium, a turbine configured to receive second medium, a mixing point downstream of the compressor and downstream of the turbine; and a shaft mechanically coupling the compressor and the turbine.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: November 27, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J. Bruno, Harold W. Hipsky
  • Patent number: 10082045
    Abstract: Closed thermodynamic cycle systems, such as closed Brayton cycle systems, with regenerative heat exchangers are disclosed. Embodiments include dual regenerators and regenerators with buffer tank systems. Regenerators may be used instead of or in addition to one or more recuperators within the systems, and may be used as a means of gas-gas heat exchange for different streams of a working fluid.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: September 25, 2018
    Assignee: X Development LLC
    Inventors: Philippe Larochelle, Raj Apte
  • Patent number: 10035601
    Abstract: An aircraft ram air channel assembly having: a first ram air inlet with a deflector protruding from the aircraft outer skin, the deflector guiding an air flow into a first ram air inlet channel; a second ram air inlet having a cross-sectional area flush with the outer skin, the second inlet being coupled to a second ram air inlet channel and arranged proximate to the first inlet upstream of the first inlet; and a flap pivotable about an axis between first and second operating positions. The axis is upstream of the first and second inlets and extends perpendicular to the air flow. The flap in its first position projects into the second inlet channel to control air flow through the second inlet into the second inlet channel, and in its second position projects into the air flow to prevent foreign objects from entering the first and second inlets.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: July 31, 2018
    Assignee: Airbus Operations GmbH
    Inventors: Martin Schmid, Christian Bartels, Frank Klimpel, Klaus Vehlhaber
  • Patent number: 9957051
    Abstract: An environmental control system (ECS) pack is provided including a primary heat exchanger, a secondary heat exchanger, and an air cycle machine. The air cycle machine includes a compressor and a turbine. The compressor is fluidly coupled to an outlet of the primary heat exchanger and to an inlet of the secondary heat exchanger. The outlet of the secondary heat exchanger is fluidly coupled to the turbine. A first conduit connects the outlet of the primary heat exchanger and the inlet of the secondary heat exchanger. The first conduit includes a first valve. A second conduit connects the outlet of the secondary heat exchanger to an air load. The second conduit includes a second valve.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: May 1, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J Bruno, Thomas M. Zywiak, Diane G. Drew
  • Patent number: 9903666
    Abstract: A mist cooling system that includes a casing and a liquid inlet. The casing is configured to receive a liquid flow from a source through the liquid inlet and then provide the liquid flow as a mist to a housing of a motor so as to increase a cooling of the motor and prevent any failure of the motor due to overheating.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: February 27, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Debabrata Pal, Craig R. Legros
  • Patent number: 9863669
    Abstract: A Brayton cycle type refrigerating apparatus using multiple stages of compressors and having a good response without reduction in efficiency due to change in heat load of the object to be cooled is provided. The Brayton cycle type refrigerating apparatus includes on a refrigerant line on which multiple stages of compressors are arranged in series. The apparatus also includes a temperature sensor for detecting heat load of an object to be cooled and a buffer tank provided between a low pressure line and a high pressure line. A flow rate of the refrigerant in the refrigerant line is controlled by controlling opening degrees of valves to adjust the cooling capacity.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: January 9, 2018
    Assignee: MAYEKAWA MFG. CO., LTD.
    Inventors: Shota Ueda, Akito Machida, Mizuo Kudo, Naoko Nakamura
  • Patent number: 9789967
    Abstract: A method of controlling an outlet temperature of a heat exchanger of an aircraft includes operating an air cycle machine at a first operating speed. The air cycle machine is operatively coupled to an air cycle machine bypass valve at a first position. The air cycle machine is fluidly connected to a first heat exchanger disposed adjacent to a second heat exchanger. In response to a second heat exchanger outlet temperature less than a second heat exchanger outlet temperature threshold while the aircraft is operating at an altitude less than an altitude threshold, the method moves the air cycle bypass valve from the first position toward a second position.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: October 17, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Brian R. Shea, Thomas M. Zywiak, Laura Jean Coates, Michael Francis Short
  • Patent number: 9429342
    Abstract: It is a purpose for the invention to provide a rotating device (107) to generate heat, cold and pressure from the outlet at the rotation axis, by centrifugation pressurized fluid in that it include at least two under-supported U-channel structures (107) where one of the channels (104, 105) from each U-channel structure (107) toward the periphery (107) is in thermal contact, forming a heat exchanger (106) where one of the channels (105) contains a compressible cooling fluid which develops heat from the centrifugal compression in the channel (105), and the heat is transferred to a heating fluid with a lower temperature in the second channel (104) in heat exchanger (106) toward the periphery (107) where heat exchanging ceases, and the U-channels (107) is connected to its inlet—(101, 102) and outlet channels (111, 112) at the rotation axis for the transport of said fluid through the U-channels (104, 105, 108, 109) via the periphery (107), which after the outlet (111) for heating fluid is heat-exploited, and cooli
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 30, 2016
    Assignee: Rotoboost AS
    Inventor: Age Jorgen Skomsvold
  • Patent number: 9221543
    Abstract: The invention relates to a compressor/turbine arrangement for use in an air conditioning unit of an aircraft air conditioning system comprising a process air supply line which is designed to supply process air generated by a process air source to a compressor. A detection device is designed to detect a characteristic signal for the temperature of the process air flowing through the process air supply line. A turbine is designed to drive the compressor. A cooling device is disposed in a process air line connecting the compressor to the turbine and is designed to cool the process air coming out of the compressor and flowing through the process air line in the direction of the turbine. Downstream of the cooling device a connecting line branches off from the process air line and opens into the process air supply line. A control device is designed to control a process air flow through the connecting line in dependence on the signal detected by the detection device.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: December 29, 2015
    Assignee: Airbus Operations GmbH
    Inventor: Juergen Kelnhofer
  • Patent number: 9132919
    Abstract: An environmental control system, includes an air cycle machine for conditioning an interior space with cooling air, the air cycle machine including a fan coupled to a shaft that rotates about a shaft axis, the fan being located at a distal end of the air cycle machine; a speed sensor module having a speed sensor for sensing a rotational speed of the shaft; wherein the speed sensor module includes an outer portion having a first bore aligned on the shaft axis, an intermediate portion having a second bore aligned on the shaft axis, and an inner portion aligned on the shaft axis; and a diffuser assembly including a cylindrical assembly for ducting a first portion of the cooling air to an inlet side of the fan and for communicating a second portion of the cooling air directly to a discharge side of the fan without passing the inlet side.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: September 15, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Christopher McAuliffe, Michael Zager
  • Patent number: 9003814
    Abstract: A method for operating an air-conditioning system for an aircraft includes compressing ambient air with a compressor driven by a shaft in communication with a motor and a turbine. The method includes forwarding the compressed air to an aircraft cabin for circulation and removing circulated compressed air from the aircraft cabin. The method also includes forwarding the circulated compressed air to the turbine, depressurizing the circulated compressed air in the turbine and capturing energy created by depressurizing the circulated compressed air.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: April 14, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Thomas M. Zywiak, Louis J. Bruno
  • Patent number: 8997516
    Abstract: The apparatus has a cooling arrangement with an expander/compressor system, condenser and evaporator primarily for air conditioning. An external heat source is provided for transfer of heat to the expander housing. For example, this heating medium is an electrical heat source in thermal contact with the outer side of the expander housing. Alternatively, the expander is provided inside an externally heated liquid buffer tank.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: April 7, 2015
    Assignee: AC-Sun ApS
    Inventors: Gunnar Minds, Søren Minds
  • Patent number: 8973393
    Abstract: An aircraft system for improved cooling efficiency comprises at least one air conditioning pack, coupled to an aircraft, having at least one air compression device powered by at least one power source and having an air compression device inlet. The system further comprises at least one air flow path for redirecting a first portion of a first volume of aircraft interior outflow air from an aircraft interior to the air compression device inlet. The air flow path includes a shutoff valve to enable the air flow path during ground operation of the aircraft and to disable the air flow path for flight operation of the aircraft. The air compression inlet mixes the first volume of aircraft interior outflow air with a second volume of aircraft exterior inflow air to form an air mixture. The air conditioning pack conditions and circulates the air mixture into the aircraft interior.
    Type: Grant
    Filed: November 8, 2009
    Date of Patent: March 10, 2015
    Assignee: The Boeing Company
    Inventors: Warren A. Atkey, Steve G. Mackin, Rod Millar
  • Patent number: 8966920
    Abstract: A refrigeration system includes a refrigerant circuit including a compressor and an expander which expands a refrigerant and generates power, for performing a refrigeration cycle. The refrigeration system includes a compressor control section and an expander control section which, when an operation stop signal is output during operation, reduces a rotational speed of the compressor and increases a rotational speed of the expander to increase the ratio of the rotational speed of the expander to the rotational speed of the compressor.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: March 3, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Masakazu Okamoto, Eiji Kumakura, Masanori Ukibune
  • Patent number: 8959944
    Abstract: The air conditioning system uses an air cycle thermodynamic process. The system comprises a centrifuge. This centrifuge includes at one of its ends, an axial inlet that funnels air into a centrifugal compressor rotating in unison with the centrifuge. The air is compressed, adiabatically heated and directed to a heat exchanger mounted in the rim of, and rotating with the centrifuge. The air is accelerated with respect the centrifuge by varying the centrifuge radius or by using forward leaning impeller blades. The air is cooled by the heat exchanger and directed to an expander also rotating with the centrifuge. The air is expanded and adiabatically further cooled. The cold air exits the centrifuge through an axial outlet located at the second end of the centrifuge.
    Type: Grant
    Filed: September 8, 2012
    Date of Patent: February 24, 2015
    Inventor: George Samuel Levy
  • Patent number: 8936071
    Abstract: An aircraft cooling system includes a refrigerant cycle including a first heat exchanger. A liquid cycle passes a liquid through the first heat exchanger, at which it is cooled by a refrigerant in the refrigerant cycle. An air cycle compresses air and delivers the compressed air into a second heat exchanger. The liquid passes through the second heat exchanger at a location downstream of the first heat exchanger. The liquid cools the air in the second heat exchanger. Air downstream of the second heat exchanger passes to be utilized by a use on an aircraft.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 20, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Louis J. Bruno, Douglas L. Christians
  • Patent number: 8920538
    Abstract: A method and a device for compressing a gas-phase medium, particularly hydrogen or natural gas, in a single-stage or multistage process using at least one piston compressor, wherein the medium may have a water content up to total saturation with water. The medium to be compressed is heated before the compression at least to such point that the water is unable to condense out during the compression process, and the compressed medium undergoes a water separation process.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: December 30, 2014
    Assignee: Linde Aktiengesellschaft
    Inventors: Robert Adler, Sascha Dorner, Georg Siebert, Martin Stehrlein
  • Publication number: 20140352348
    Abstract: An assembly for an environmental control system includes a primary air-to-air heat exchanger and an aft manifold. The aft manifold is mounted to the primary heat exchanger and is adapted with a first duct to receive air flow from the primary heat exchanger. The aft manifold has a bypass duct and the bypass duct is configured to selectively allow air flow to bypass the primary heat exchanger.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventors: Donald E. Army, JR., Frederick Peacos, III
  • Patent number: 8887486
    Abstract: A ram air fan inlet housing for containing a ram air fan rotor. The inlet housing includes a flanged surface and an interior surface. The flanged surface is perpendicular to an axis of the inlet housing and defines a flange plane at an axial end of the inlet housing. The interior surface is symmetric about the axis of the inlet housing and includes a flange section, a transition section, an outlet section, a rotor section, and an inlet section.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: November 18, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Seth E. Rosen, Eric Chrabascz, Victoria S. Richardson
  • Patent number: 8863544
    Abstract: An environmental control apparatus includes (A) a condensation air flow loop in which a fan driven when the aircraft is moved on the ground or flies performs a thermal exchange with a condenser of a cooling/heating flow loop; (B) the cooling/heating flow loop, including an evaporator, a compressor configured to have a rotating shaft coupled to the shaft of a ram air turbine, a condenser configured to perform a thermal exchange by the condensation air flow loop, and an expansion valve configured to expand the refrigerant condensed by the condenser, wherein the evaporator, the compressor, the condenser, and the expansion valve are interconnected by a refrigerant circulation line; (C) an air circulation loop for circulating and supplying cooled or heated air to a camera/electronic unit so that the camera/electronic unit maintains a constant temperature; and (D) a controller for controlling the driving of the elements in each of the loops.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: October 21, 2014
    Assignee: Agency for Defense Development
    Inventors: Haeng-Bok Lee, Daeyoon Jung
  • Patent number: 8863547
    Abstract: The invention relates to a desalination method and system that uses freeze crystallization technology that incorporates the use of compressed air energy as the source for freezing temperatures. When compressed air is released by a turbo expander, chilled air is produced as a by-product, wherein the chilled air is introduced into a crystallization chamber. Also injected into the chamber is a spray cloud of seawater droplets, which has been pre-chilled by heat exchange with the cold chamber walls, and which is then circulated and exposed to the chilled air in the chamber. The sizes of the droplets can vary, but are preferably predetermined, along with the relative temperatures, flows and speeds of the spray and chilled air, such that when the droplets are circulated within the chilled air, and settle at the bottom of the chamber, they are deposited at slightly above the eutectic temperature.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: October 21, 2014
    Inventors: Ben M. Enis, Paul Lieberman
  • Patent number: 8863548
    Abstract: A cabin air compressor assembly includes a cabin air compressor disposed at a compressor inlet and a cabin air compressor motor operably connected to the cabin air compressor. At least one cooling flow inlet is located at a first end of the cabin air compressor motor substantially opposite a second end whereat the cabin air compressor is located. The cooling flow inlet is configured to direct a cooling flow across the cabin air compressor motor. A blower is operably connected to the cabin air compressor and is configured to urge a cooling flow from across the cabin air compressor motor toward a cooling flow outlet, thereby increasing the cooling flow across the cabin air compressor motor.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: October 21, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Harold W. Hipsky
  • Patent number: 8839641
    Abstract: A method for providing a flow control system for an aircraft. A compressor is removed from an existing air cycle machine, along with compressor ducting that is connected to a primary stage outlet of the heat exchanger and a secondary stage inlet of the heat exchanger in the existing air cycle machine. A first connector duct is provided and connected to the primary stage outlet of the heat exchanger and the secondary stage inlet of the heat exchanger. The turbine is removed from the existing air cycle machine, and a second connector duct is provided and connected to the upstream turbine duct directly and the downstream turbine duct.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: September 23, 2014
    Inventor: Wesley M. Plattner
  • Publication number: 20140245775
    Abstract: A mixer has an internal bore with an inlet to a chamber, and an outlet at an opposed end/A duct is connected to receive a recirculated air flow. The duct communicates air into the chamber through recirculating air ports such that the recirculating air can mix with the air from the inlet. The mixer housing has a cockpit outlet for delivering air to a second outlet, with the cockpit output being located axially upstream from the recirculating air ports. An isolator is mounted at an outer periphery of the mixer housing, and has flat sides on each of two circumferentially spaced sides. A belly band is bolted to an outer periphery of the mixer housing and to flat sides of the isolator.
    Type: Application
    Filed: December 21, 2012
    Publication date: September 4, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Hamilton Sundstrand Corporation
  • Patent number: 8769983
    Abstract: The present invention provides a refrigeration cycle apparatus using a first compressor and a second compressor driven by an expander and including a high and low pressure heat exchanger, in which a low-pressure-side outlet of the high and low pressure heat exchanger is bypassed to a low pressure portion or an intermediate pressure portion to adjust an inlet density at the expander and thereby provide high efficiency. The high and low pressure heat exchanger of the refrigeration cycle apparatus of the present invention changes an amount of heat exchange between a high-pressure refrigerant and a reduced-pressure refrigerant branched from the high-pressure refrigerant at an inlet portion of the high and low pressure heat exchanger and reduced in pressure to adjust the density of the refrigerant flowing in the expander so that power recovered by the expander and power required by the second compressor match.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: July 8, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Takashi Okazaki
  • Patent number: 8707721
    Abstract: A cooling system for an aircraft includes an air inlet through which air from the environment of the aircraft enters a ram air channel, and an air outlet through which air emerges from the ram air channel. A heat exchanger is arranged in the ram air channel. A ventilation device is in fluid communication with the ram air channel. Also connected to the ram air channel is a distribution line to cool at least one heat-loaded component of the aircraft, in particular a cabin air conditioning system, and/or to ventilate an installation space of the at least one heat-loaded component.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 29, 2014
    Assignee: Airbus Operations GmbH
    Inventors: Thomas Scherer, Rudiger Schmidt, Alexander Solntsev
  • Publication number: 20140109603
    Abstract: Environmental control systems and methods to control environmental temperature of an enclosed space by integrating a passive heat exchange subsystem (e.g., a loop heat pipe (LHP) heat exchange subsystem) having a closed loop heat exchange fluid circuit in heat-exchange relationship with the enclosed space for providing environmental temperature control therewithin, a RAM-air subsystem having a RAM-air circuit for circulating RAM cooling air, and a vapor compression cycle machine (VCM) subsystem having a VCM fluid circuit having a compressor, an evaporator, a condenser and an expansion valve.
    Type: Application
    Filed: December 19, 2012
    Publication date: April 24, 2014
    Applicant: EMBRAER S.A.
    Inventors: Júlio Romero Santos FERNANDES, Ricardo GANDOLFI, Nicolau Braga SANTOS, Luiz Tobaldini NETO
  • Patent number: 8673056
    Abstract: The invention is directed to processes and apparatuses for gas treatment, in particular for the purification of methane rich gas streams, such as gas obtained from the conversion from organic matter (“biogas”). In accordance with the present invention there is provided an apparatus and a process for producing a purified methane comprising gas stream (P) from a methane containing gas stream (A), comprising the steps of: (a) pressurising said methane containing gas stream (A) and subsequently cooling it, whereby a stream comprising condensed contaminants (C) and a methane comprising stream (B) are obtained; (b) optionally feeding said methane comprising stream (B) to an adsorption unit and/or a catalytic conversion unit, whereby the concentration of contaminants in stream (B) is further decreased; and (c) cooling the methane comprising stream (B) to a temperature which is sufficient to condensate CO2 from said stream (B), whereby said purified methane comprising gas stream (P) is obtained.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: March 18, 2014
    Assignee: Gastreatment Services B.V.
    Inventors: Mathieu André De Bas, Jacob Kuiper, Jeroen De Pater
  • Patent number: 8607579
    Abstract: Embodiments of a heat transfer apparatus, and related methods, involve at least one boundary wall defining a first flow path through a neck portion, a first heat source external to and in thermal communication with the boundary wall, and a working fluid (e.g., a first fluid component with a second fluid component entrained therein). The neck portion may be shaped such that at least a portion of the second fluid component impinges upon at least a portion of the boundary wall as the working fluid flows therethrough, whereby heat is transferred from the first heat source to the working fluid through the boundary wall.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: December 17, 2013
    Assignee: Machflow Energy, Inc.
    Inventors: Arthur R. Williams, Charles Agosta
  • Patent number: 8612063
    Abstract: An environmental control systems (ECS) for an aircraft in which bleed air is cooled with ram air, the ECS may include a ram air controller configured to control a rate of ram air flow responsively to a desired temperature of bleed air at a bleed air outlet and a bleed air controller configured to control a rate of bleed air flow responsively to a temperature lower than the desired temperature of the bleed air at the bleed air outlet. Collectively the two controllers may provide a minimizing of ram air usage for cooling the bleed air.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: December 17, 2013
    Assignee: Honeywell International, Inc.
    Inventors: Andrea Chor Ying Lau, Xiaomei Li
  • Patent number: 8602088
    Abstract: A cooling air supply system for an aircraft is configured to supply cooling air from the surroundings of the aircraft to at least two devices requiring cooling air (38, 44, 56) within the aircraft. The cooling air supply system includes an air inlet, an air channel communicating with the air inlet, and an air distribution device for the distribution of air from the air channel to the at least two devices requiring cooling air. The air inlet is sized to provide sufficient air flow to accommodate a maximum cooling air requirement of the at least two devices requiring cooling air.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: December 10, 2013
    Assignee: Airbus Deutschland GmbH
    Inventors: Alexander Solntsev, Holger Bammann
  • Patent number: 8522572
    Abstract: An aircraft adaptive power thermal management system for cooling one or more aircraft components includes an air cycle system, a vapor cycle system, and a fuel recirculation loop operably disposed therebetween. An air cycle system heat exchanger is between the air cycle system and the fuel recirculation loop, a vapor cycle system heat exchanger is between the vapor cycle system and the fuel recirculation loop, and one or more aircraft fuel tanks are in the fuel recirculation loop. An intercooler including a duct heat exchanger in an aircraft gas turbine engine FLADE duct may be in the air cycle system. The system is operable for providing on-demand cooling for one or more of the aircraft components by increasing heat sink capacity of the fuel tanks.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: September 3, 2013
    Assignee: General Electric Company
    Inventors: George Albert Coffinberry, Neil Richard Garrigan
  • Publication number: 20130220123
    Abstract: Apparatus and method for removing particles from an air source. The air source is passed through multiple rows (R65) of cyclone separators (65), removing particles from the air to create cleaned air and passing the particles through openings (112) in the separators 65 so that the particles fall to a surface (42) below the openings. The cleaned air is directed into a first chamber region (73) above the cyclone separators (65) and moved along a second chamber region (76) positioned between two of the rows (R65) toward a duct (85) for passage out to a compressor (22).
    Type: Application
    Filed: November 16, 2011
    Publication date: August 29, 2013
    Inventors: Randall J. England, Russell J. Katzer
  • Patent number: 8516840
    Abstract: A solar powered air conditioner comprising of at least one solar panel, an inverter that converts the DC voltage created by the solar panels to AC voltage connected to the solar panel, a battery charger that receives the AC voltage from the inverter and converts the AC voltage to DC voltage, a charge controller connected to the battery charger, a rechargeable battery connected to the charge controller, a contactor connected to the rechargeable battery and to a thermostat, a DC powered motor connected to the contactor, and an air conditioning system, the air conditioning system having an air compressor and an air conditioning motor, the air compressor connects to the DC powered motor via a belt, and the air conditioner motor connects to the contactor.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 27, 2013
    Inventor: Ramon E. Debesa
  • Publication number: 20130167566
    Abstract: An ejector (200; 400; 600; 700; 800) has a housing (202) and an insert. The housing has an upstream end (206) and a downstream end (208) and a branch (220). A primary flowpath extends from the upstream end and a secondary flowpath passes through the branch to join the primary flowpath. The insert (204; 402) is within the housing and extends from an upstream end (250) to a downstream end (252). The insert has a motive nozzle (240) having an inlet and an outlet. A mixer (242) is at least partially downstream of the motive nozzle. One or more passages (304) are positioned such that the secondary flowpath extends through the branch and through the one or more passages to join the primary flowpath, at least one portion of the insert being of less robust material than a material of the housing.
    Type: Application
    Filed: May 10, 2012
    Publication date: July 4, 2013
    Applicant: Carrier Corporation
    Inventor: Abbas A. Alahyari
  • Publication number: 20130160472
    Abstract: An air-conditioning system for an aircraft includes a compressed air branch for conveying externally supplied and pressurized air, preferably bleed air. Furthermore, a cooling circuit for conveying preferably liquid refrigerant is provided and extends through a ram air duct. The system also includes a first heat exchanger for the heat transfer between the compressed air branch and the cooling circuit, a compressed air turbine arranged in the compressed air branch and a cooling circuit compressor arranged in the cooling circuit and mechanically coupled to the compressed air turbine. The system can have a modular design and be positioned at optimal locations in the aircraft due to the separation of the compressed air branch and the cooling circuit. In this way, the length of hot compressed air ducts can be shortened.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 27, 2013
    Applicant: AIRBUS OPERATIONS GMBH
    Inventor: AIRBUS OPERATIONS GMBH
  • Patent number: 8468847
    Abstract: An aircraft air-conditioning unit (10) includes a compressor (18) and a motor (20) driving the compressor (18). A fuel cell system (24) is connected directly to a control unit (22) for controlling the motor (20) driving the compressor (18), wherein the control unit (22) is adapted to convert electrical energy directly generated by the fuel cell system (24) into corresponding electrical control signals for controlling the motor (20) driving the compressor (18). In a method for operating an aircraft air-conditioning unit (10), which includes a compressor (18) and a motor (20) driving the compressor (18), a control unit (22) for controlling the motor (20) driving the compressor (18), which is directly connected to a fuel cell system (24), converts electrical energy directly generated by the fuel cell system (24) into corresponding electrical control signals for controlling the motor (20) driving the compressor (18).
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: June 25, 2013
    Assignee: Airbus Operations GmbH
    Inventor: Guido Klewer
  • Patent number: 8468830
    Abstract: A heating and cooling system for inlet air of a turbine compressor. The heating and cooling system may include a fluid coil positioned about the turbine compressor and a thermal energy storage tank. The fluid coil and the thermal energy storage tank are in fluid communication such that fluid is both provided to the fluid coil from the thermal energy storage tank for exchanging heat with the inlet air and returned to the thermal energy storage tank without further heat exchange.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: June 25, 2013
    Assignee: General Electric Company
    Inventors: Abbas Motakef, Peter Feher
  • Patent number: 8459966
    Abstract: A ram air fan assembly includes a ram air fan disposed at a fan inlet and a ram air fan motor operably connected to the ram air fan. A blower is operably connected to the ram air fan and is configured to redirect a cooling flow across the ram air fan motor from a substantially axially directed flow to a substantially radially directed flow thereby increasing the cooling flow across the ram air fan motor. A method of cooling a ram air fan assembly includes urging a cooling flow toward the ram air fan motor and is directed across the ram air fan motor thus removing thermal energy from the ram air fan motor. The cooling flow proceeds across a blower operably connected to the ram air fan motor, thus directing the cooling flow substantially radially outwardly toward the fan inlet.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: June 11, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Harold W. Hipsky, Darryl A. Colson
  • Patent number: 8448461
    Abstract: A refrigeration system for minimizing the cool down time of a mass to cryogenic temperatures including a compressor, an expander, a gas storage tank, interconnecting gas lines, and a control system. The compressor output is maintained near its maximum capability by maintaining near constant high and low pressures during cool down, gas being added or removed from the storage tank to maintain a near constant high pressure, and the speed of said expander being adjusted to maintain a near constant low pressure, no gas by-passing between high and low pressures.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: May 28, 2013
    Assignee: Sumitomo (SHI) Cryogenics of America Inc.
    Inventor: Ralph Longsworth
  • Publication number: 20130118190
    Abstract: A method for operating an air-conditioning system for an aircraft including receiving an available power level from a control system of the aircraft, forwarding air from a first compressed air source to an aircraft cabin and forwarding air from a second compressed air source to the aircraft cabin if the available power level exceeds a threshold value.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J. Bruno, Thomas M. Zywiak