Air Compessor, Cooler And Expander Patents (Class 62/172)
  • Patent number: 10435160
    Abstract: An aircraft air conditioning system comprises an ambient air supply line adapted to be flown through with ambient air, an ambient air cooling apparatus, which is connected to the ambient air supply line and is configured to cool the ambient air flowing through the ambient air supply line, an ambient air discharge line, which is connected to the ambient air cooling apparatus and is connectable to an aircraft cabin, in order to conduct ambient air cooled by the ambient air cooling apparatus into the aircraft cabin, a process air supply line adapted to be flown through with compressed process air, a process air cooling apparatus, which is connected to the process air supply line and is configured to cool the compressed process air flowing through the process air supply line, a process air discharge line, which is connected to the process air cooling apparatus and is connectable to the aircraft cabin, in order to conduct process air cooled by the process air cooling apparatus into the aircraft cabin, and a refrig
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: October 8, 2019
    Assignee: AIRBUS OPERATIONS GMBH
    Inventor: Frank Klimpel
  • Patent number: 10429107
    Abstract: An environmental control system (ECS) includes an air cycle machine (ACM), a condenser downstream of the ACM, a reheater between the condenser and the ACM, a primary heat exchanger upstream of the reheater, a first regulated flow path between the condenser and a first environment outside of the ECS, a second regulated flow path between a second environment to be conditioned and the reheater, and a third regulated flow path between the primary heat exchanger and the reheater.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: October 1, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Jan Ludvik, Martin Knob, Michael John Street
  • Patent number: 10377495
    Abstract: A ram air channel arrangement for ambient air supply into an aircraft comprises a ram air channel which has a ram air inlet channel and a ram air outlet channel arranged downstream of the ram air inlet channel and in fluid communication with the ram air inlet channel. The ram air channel arrangement further comprises a cabin exhaust air line which is adapted to have cabin exhaust air flow therethrough which has been removed from an aircraft cabin and which cabin exhaust air line is connected to the ram air inlet channel and is adapted to lead the cabin exhaust air into the ram air inlet channel.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: August 13, 2019
    Assignee: AIRBUS OPERATIONS GMBH
    Inventors: Holger Bammann, Alexander Solntsev, Frank Klimpel, Alexandre Broquet
  • Patent number: 10266034
    Abstract: A system for providing heating and cooling to an aircraft has a single compressor for compressing and heating a fluid, a first zone and a second zone. The first zone has a first expansion valve without a condenser and a first heat exchanger removing heat from or adding heat to the first zone. The compressed fluid passes through the first zone and the first expansion valve. The second zone requires cooling and has a second expansion valve without a condenser and a second heat exchanger for removing heat from the zone. The compressed fluid passes through the second expansion valve after going through the first expansion valve and before passing through the second heat exchanger.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: April 23, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Michael J. Andres
  • Patent number: 10208675
    Abstract: A hybrid drive system driven by a gas turbine engine is disclosed. The hybrid drive system includes a planetary gear set, a first motor-generator, and a second motor-generator. The planetary gear set includes a first member, a second member, and a third member. The first member is operatively coupled to the second member and the third member. The first member is operatively coupled to and transmits power from a shaft of the gas turbine engine. The first motor-generator is drivingly coupled to the third member. The second motor-generator includes an output and is drivingly coupled to the second motor-generator by the second member and the third member. The hybrid drive system is configured to transfer the power from the shaft to the output of the second motor-generator.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: February 19, 2019
    Assignee: The Boeing Company
    Inventor: Steve Mackin
  • Patent number: 10184494
    Abstract: An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: January 22, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Donald E. Army, Patrick McCord, Dominique P. Sautron, Thomas M. Zywiak
  • Patent number: 10137317
    Abstract: A system for delivering oxygen enriched air to a selected location on an aircraft may include: a gas separation system configured to output a flow of the oxygen enriched air; an environmental control system configured to output a flow of conditioned air; and/or first, second, and third ducts. The first duct may be configured to direct the flow of the oxygen enriched air to the third duct. The second duct may be configured to direct the flow of the conditioned air to the third duct. The conditioned air and the oxygen enriched air may be mixed in the third duct. The third duct may be configured to direct the mixed conditioned and oxygen enriched air to at least one dispensing station at the selected location that is configured to dispense the mixed conditioned and oxygen enriched air to users of the at least one dispensing station.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: November 27, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Andrew L. Armatorio, Richard J. Loftis, Colin W. Hart, Lisa C. Thomas, Kevin R. Price
  • Patent number: 10086946
    Abstract: An airplane is provided. The airplane includes a pack. The pack includes a shaft, a compressor, a turbine coupled to the compressor via the shaft; and a heat exchanger. The compressor receives and compresses a first medium in accordance with power provided by the turbine via the shaft. The turbine receives and expands a second medium to provide the power to the compressor via the shaft. The heat exchanger is configured to cool the first medium.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: October 2, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Thomas M. Zywiak, Gregory L. DeFrancesco, David E. Hall
  • Patent number: 10071807
    Abstract: A method for controlling an aircraft air conditioning system includes the steps of detecting an operating state of an air conditioning unit of the aircraft air conditioning system and controlling the temperature of a process air mass flow supplied to the air conditioning unit in dependence on the operating state of the air conditioning unit.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: September 11, 2018
    Assignee: Airbus Operations GMBH
    Inventor: Juergen Kelnhofer
  • Patent number: 10012146
    Abstract: A turbojet comprising a low-pressure compressor, a high-pressure compressor and a bleeding system configured to bleed air in the turbojet and to deliver the air to an air system. The bleeding system comprises a first air intake configured to bleed air at low pressure, a second air intake configured to bleed air at high pressure, a first valve and a second valve having inlets connected to the first air intake, a compressor having an inlet connected to an outlet of the second valve, a high-pressure valve connected to the second air intake, a control valve connected to the air system, and a controller to control opening and closing of the valves depending on a pressure at the first air intake.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: July 3, 2018
    Assignee: AIRBUS OPERATIONS SAS
    Inventors: Olivier Pelagatti, Thomas Deguin, Ronan Bodet
  • Patent number: 9994323
    Abstract: A replacement system, which includes a plurality of heat exchangers and a compressing device, is configured to prepare in parallel a medium bled from a low-pressure location of an engine and flowing through a plurality of heat exchangers into a chamber. The compressing device is in communication with the plurality of heat exchangers and regulates a pressure of the medium flowing through the plurality of heat exchangers. The replacement system employs a subsystem to treat the medium from the low-pressure location of the engine before it is received by the inerting system.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 12, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J. Bruno, Thomas M. Zywiak, Erin G. Kline, Christina W. Millot, Harold W Hipsky, Jr., Donald E. Army, Jr., Paul M. D'Orlando
  • Patent number: 9976684
    Abstract: A method for controlling the operation of an auxiliary power unit supplying an aircraft air conditioning system with compressed process air includes determining a heating or cooling requirement of an aircraft region to be air-conditioned, determining a desired value of at least one process air flow parameter in dependence on the determined heating or cooling requirement of the aircraft region to be air-conditioned, controlling the operation of the auxiliary power unit in dependence on the determined process air flow parameter desired value, acquiring an actual value of the at least one process air flow parameter, comparing the process air flow parameter actual value with the process air flow parameter desired value and controlling the operation of the auxiliary power unit in dependence on the result of the comparison of the process air flow parameter actual value with the process air flow parameter desired value.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 22, 2018
    Assignee: AIRBUS OPERATIONS GMBH
    Inventors: Jurgen Kelnhofer, Dariusz Krakowski
  • Patent number: 9971969
    Abstract: A method of predicting a fault in an air-conditioning pack of an aircraft is disclosed. The air-conditioning pack includes one or more sensors outputting data related to air-conditioning pack temperature, air-conditioning pack pressure, or air-conditioning pack valve or actuator positions. The method includes transmitting data from at least one of the sensors operably coupled to the air-conditioning pack, comparing the transmitted data to a predetermined threshold, and predicting a fault in the air-conditioning pack based thereon.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 15, 2018
    Assignee: Taleris Global LLP
    Inventors: Robert William Horabin, Julia Ann Howard, Frank Beaven
  • Patent number: 9957052
    Abstract: An Environmental Control System includes sensors, an air purification subsystem, and a controller in communication with the sensors and air purification subsystem. The sensors detect contaminants in outside air supplied through engine and APU bleeds or other air sources including ground supplies and electric compressors, contaminants in recirculated air, particulates in outside air, carbon dioxide in recirculated air, temperature in an environment, and pressure in an environment. These sensed parameters are compared against thresholds. Based on the comparisons, changes to the outside air and/or recirculated air are made.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: May 1, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard B. Fox, Bijan F. Hagh, Mike Koerner, Stephen Yates, Peter M. Michalakos, Russell W. Johnson
  • Patent number: 9885284
    Abstract: A turbojet comprising a high-pressure compressor with several compression stages in which the pressure rises in a direction of air flow, from a low pressure to a high pressure, passing through intermediate pressures, and a system to bleed air in the turbojet and deliver the air to an air system. The bleeding system comprises a first air intake to bleed air at low pressure, a second air intake to bleed air at an intermediate pressure, a first valve and a second valve having inlets connected to the first air intake, a compressor having an inlet connected to the second valve outlet, a high-pressure valve connected to the second air intake, and a control valve connected to the air system, and a controller to control the opening and closing of the valves depending on the pressures at the first and second air intakes.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: February 6, 2018
    Assignee: Airbus Operations (SAS)
    Inventors: Olivier Pelagatti, Thomas Deguin, Ronan Bodet
  • Patent number: 9878794
    Abstract: A method for providing recirculation air to an environmental control system is provided. The method includes supplying via an inlet a flow of bleed air to the environmental control system at a first energy, providing the bleed air from the environmental control system at a second energy into a chamber, and providing the recirculation air to the environmental control system by recirculating the bleed air at a third energy from the chamber to an air cycle machine.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 30, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Louis J. Bruno
  • Patent number: 9856026
    Abstract: A system that comprises a nozzle arrangement is provided. The nozzle arrangement includes at least one nozzle configured to supply a medium at a nozzle flow rate to a fan of an air cycle machine. The nozzle flow rate provides a pneumatic power assist or a power augmentation to a fan of an air cycle machine. The power augmentation, in accordance with the nozzle flow rate, reduces a need for a flow across a turbine of the air cycle machine.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 2, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Harold W. Hipsky, Donald E. Army, Jr., Erin G. Kline, Louis J. Bruno, Christina W. Millot
  • Patent number: 9849990
    Abstract: An environmental control system comprising that utilizes recirculation air. The environmental control system includes an inlet configured to supply bleed air at a first energy from a source to the environmental control system, where the environmental control system supplies the bleed air at a second energy to a chamber. The environmental control system also includes an air cycle machine comprising a compressor and a turbine, where the air cycle machine receives the recirculation air from the chamber and the recirculation air is bleed air at a third energy flowing from the chamber to the air cycle machine.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 26, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Louis J. Bruno
  • Patent number: 9840333
    Abstract: A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air directly flows from a source to mix with recirculated air downstream of a compressor of the air cycle machine in accordance with a high pressure mode or a recirculation chilling mode. The system and method can also utilize the recirculated air flowing from the chamber to drive or maintain the air cycle machine in accordance with the above modes.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 12, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J. Bruno, Paul M. D'Orlando, Donald E. Army, Jr., Thomas M. Zywiak, Harold W. Hipsky, Erin G. Kline, Richard Rusich, John M. Maljanian, Jr., Eric Surawski
  • Patent number: 9809314
    Abstract: An aircraft air conditioning system comprises a process air line configured to supply compressed process air provided by a process air source to an air conditioning unit of the aircraft air conditioning system and a trim air line branching off from the process air line upstream of the air conditioning unit and being configured such that trim air flows through the trim air line, the trim air having been branched off from the compressed process air flowing through the process air line. A compressor is arranged in the trim air line and is configured to compress the trim air flowing through the trim air line. A turbine of the aircraft air conditioning system is configured to drive the compressor. A cabin exhaust air line is configured to supply cabin exhaust air discharged from an aircraft cabin to the turbine for driving the turbine.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: November 7, 2017
    Assignees: Airbus Operations S.L., Airbus Operations GmbH
    Inventors: Holger Bammann, Frank Klimpel, Dariusz Krakowski, Anton Mendez-Diaz
  • Patent number: 9783307
    Abstract: A system and method that comprises an air cycle machine, a flow of bleed air, at least one heat exchanger, and an inlet configured to supply the flow of the bleed air is provided. The bleed air directly flows from a source to either a compressor of the air cycle machine or the at least one heat exchanger in accordance with a high pressure, low pressure, or pressure boost operation mode. The system and method also can also utilize recirculated air flowing from the chamber to drive or maintain the air cycle machine in accordance with the above modes.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: October 10, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J. Bruno, Eric Surawski, Donald E. Army, Jr., Thomas M. Zywiak, Harold W. Hipsky, Erin G. Kline, Richard Rusich, John M. Maljanian, Jr., Paul M. D'Orlando
  • Patent number: 9752834
    Abstract: A cooling system cools at least one heat producing device provided in a unit of transport, and a method is provided for cooling at least one heat producing device provided in a unit of transport. The cooling system includes at least one first liquid circuit and at least one first heat exchanger assigned to the first liquid circuit, the first liquid circuit, for cooling the at least one first heat producing device, being configured to absorb heat of the first heat producing device via a cooling liquid circulating in the first liquid circuit and dissipate heat to the first heat exchanger, the first heat exchanger being coupled in such a manner to a first air-guiding system available on board the unit of transport, that exhaust air extracted from the first air-guiding system can be supplied to the first heat exchanger in order to recool the cooling liquid.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: September 5, 2017
    Assignee: AIRBUS OPERATIONS GMBH
    Inventors: Robert Schöll, Cherif Terzi
  • Patent number: 9738389
    Abstract: A cooling system for use with a galley monument having at least one galley compartment includes a heat exchanger supplying cooled air to at least one galley compartment. An airflow supply and return system has a supply duct that couples the heat exchanger in flow communication with the at least one galley compartment. A diverter mechanism is positioned at least partially within the supply duct for controlling flow of the cooled air. The diverter mechanism is movable between a first position in which the cooled air flows from the heat exchanger through the supply duct to the at least one galley compartment and a second position in which at least a portion of the cooled air from the heat exchanger is discharged from the supply duct to the passenger compartment of the aircraft.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: August 22, 2017
    Assignee: The Boeing Company
    Inventors: Steven George Mackin, Francesco Balestra
  • Patent number: 9650967
    Abstract: A method for decreasing a throttle setting at which a gas turbine-powered aircraft must switch from low-pressure bleed air to a high-pressure bleed air. The method includes flowing low-pressure bleed air from a compressor at a first pressure. A first portion of the low-pressure bleed air is directed to an air-to-air heat exchanger and cooled in the air-to-air heat exchanger. The first portion of the low-pressure bleed air is flowed from the air-to air heat exchanger into a cooled bleed air line. A second portion of the low-pressure bleed air is directed to a low-pressure bypass line. The second portion of the low-pressure bleed air is flowed from the low-pressure bypass line into the cooled bleed air line upstream of an environmental control system.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 16, 2017
    Assignee: Hamiilton Sundstrand Corporation
    Inventor: Gregory L. DeFrancesco
  • Patent number: 9623974
    Abstract: An environmental control system including a turbomachine assembly having a shaft, motor, turbine and compressor, the compressor outputting a compressed air stream, a first valve that splits the compressed air stream into first and second compressed air streams, a heat exchanger to cool the first compressed air stream and output a cooled air stream, a second valve positioned to receive the cooled air stream and split the cooled air stream into first and second cooled air streams, wherein the first cooled stream is expanded in the turbine to produce an expanded air stream that is combined with the second compressed air stream and the second cooled air stream to provide a combined air stream having a temperature and a flow rate, and a controller that communicates control signals to the compressor, motor and first and second valves to control the temperature and flow rate of the combined air stream.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 18, 2017
    Assignee: The Boeing Company
    Inventor: Andrew T. Johnson
  • Patent number: 9617005
    Abstract: A system and method of altering the air conditioning system in an aircraft so that the air conditioning system is electrically powered rather than engine powered. The aircraft is rid of the air conditioning components that are dedicated to the engine powered system. A new electric compressor, evaporator and condenser blower assembly are then installed. Heat exchanger units are installed in the areas of the aircraft that are to be cooled. The new air conditioning system has two circulatory loops. In a refrigerant loop, refrigerant is circulated between the electric compressor, evaporator and condenser. This cools the evaporator. The evaporator is then used to cool circulating liquid coolant. The coolant is circulated to the heat exchange units.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: April 11, 2017
    Inventor: Peter Schiff
  • Patent number: 9611752
    Abstract: A compressor start bleed system for a turbine system includes a compressor section. Also included is a turbine section disposed downstream of the compressor section. Further included is at least one duct fluidly coupled to the compressor section, wherein the at least one duct is configured to route a start bleed extraction from the compressor section to a location downstream of the turbine section. Yet further included is at least one control device of the at least one duct configured to actively modulate the start bleed extraction during a part speed operation of the turbine system.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 4, 2017
    Assignee: General Electric Company
    Inventors: Steven William Tillery, David August Snider
  • Patent number: 9580180
    Abstract: An aircraft environmental control system (ECS) may be configured to operate in first mode and a second mode. The ECS may include an air cycle machine (ACM), a by-pass valve positioned to allow bleed air to by-pass the air cycle machine so that when the by-pass valve is open, the ECS operates in the first mode with bleed air at a first pressure and when the by-pass valve is closed the ECS operates in the second mode at a second bleed air pressure, higher than the first bleed air pressure. A bleed air system controller and ECS controller may be configured to selectively couple high pressure or low pressure bleed air ports of an engine of an aircraft to the ECS and control the by-pass valve position.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 28, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Michel A. Jonqueres, Roy Araki
  • Patent number: 9493243
    Abstract: Embodiments relate to adjusting cabin pressure based on ambient conditions to achieve a target aircraft inflow. An aspect includes receiving a number of occupants on an aircraft. The ambient conditions on the aircraft are monitored and an occupant threshold limit is determined for the aircraft based on the ambient conditions. If it is determined that the number of occupants exceeds the occupant threshold limit, the cabin pressure is reduced in the aircraft according to embodiments. The cabin pressure in the aircraft is reset in response to the occupant threshold limit being increased due to changing ambient conditions.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: November 15, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Brendon W. Lewis, Young K. Park, Allison Mainelli, Cuiye Chen
  • Patent number: 9457908
    Abstract: An nitrogen generation system for an aircraft is provided. The system includes a RAM air circuit, a motor driven compressor (MDC) having a rotor, a stator to drive rotor rotation and a compressor rotatably coupled to the rotor and a cooling system. The cooling system directs cooling air from the RAM air circuit to an inlet of the compressor and an alternative low pressure environment such that the cooling air removes heat from the stator.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: October 4, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Eric Surawski
  • Patent number: 9382841
    Abstract: A bleed air supply system configured to supply bleed air from an engine to an environmental control system (ECS) pack is provided including a high pressure port configured to bleed air from a high spool of the engine. An intermediate pressure port is configured to bleed air from the high spool of the engine. The bleed air at the intermediate pressure port has a pressure less than the bleed air at the high pressure port. A precooler is fluidly coupled to the ECS pack, the high pressure port and the intermediate pressure port. Bleed air from the high pressure port and the intermediate pressure port is conditioned in the precooler before being provided to the ECS pack. A low pressure port is configured to bleed air from a low spool of the engine. The bleed air from the low pressure port bypasses the precooler and is supplied directly to the ECS pack.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: July 5, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Louis J Bruno, Thomas M. Zywiak
  • Patent number: 9375679
    Abstract: An air dryer assembly with manifold system provides increased drying capacity for pressurized air systems, such as vehicle braking systems. A manifold connected to the supply ports of two adjacent air dryers allows parallel flow of air through the separate air dryers. An identical manifold connects to the delivery ports of the two air dryers to combine the clean, dry air from the delivery ports. Similar manifolds connect the control and purge ports of the dryers to allow simultaneous regeneration of the desiccant canisters. An assembly combining two air dryers, two pretreatment units, and manifolds connecting the supply, delivery, control, and purge ports of two air dryers is also disclosed.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: June 28, 2016
    Assignee: HALDEX BRAKE PRODUCTS CORPORATION
    Inventors: Andrew W. Adams, Michael R. Jenkins
  • Patent number: 9272788
    Abstract: An aircraft cooling system including a cooler having a cold transfer circuit, in which a cold transfer medium circulates. The cooler supplies cooling energy to an aircraft device to be cooled. The aircraft cooling system further includes a heat transfer arrangement having a heat transfer circuit, in which a heat transfer medium circulates and which is thermally coupled to the cold transfer circuit of the cooler via a heat exchanger, in order to absorb waste heat generated by the cooler and transfer it to a cabin air extraction system. The heat transfer arrangement further includes at least one heat pump which brings about an increase of the heat energy transfer from the cold transfer medium circulating in the cold transfer circuit of the cooler to the heat transfer medium circulating in the heat transfer circuit, at least in certain operating phases of the aircraft cooling system.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: March 1, 2016
    Assignee: Airbus Operations GmbH
    Inventors: Torsten Truemper, Matthias Reiss
  • Patent number: 9228593
    Abstract: A ram air fan outer housing for directing air from a ram air fan rotor and air from a ram air bypass into a ram air fan outlet. The outer housing includes an outer cylinder and a plenum connected at a joint region. The outer cylinder is made of a laminate stacking sequence of at least four adjacent layers of plain-weave carbon-fiber fabric in an A-B-B-A sequence. The plenum is made of a laminate stacking sequence of at least eight adjacent plenum layers of plain-weave carbon-fiber fabric in an A-B-B-A-A-B-B-A sequence. The plenum is joined to the outer cylinder at a joint region, the joint region includes a transition section transitioning the laminate stacking sequence from the eight adjacent layers of the plenum walls to the four adjacent layers of the outer cylinder walls.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: January 5, 2016
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Eric Chrabascz, Craig M. Beers
  • Patent number: 9162773
    Abstract: The invention concerns an aircraft comprising a reversible rotary electrical machine 30), a wheel (35) for imparting movement to a stream of air, linked to said machine (30), a first ventilation duct (10, 15) configured to supply said wheel (35) with air, an electricity distribution network (70), a reversible power converter (40) connected to said machine (30) and to said network (70), and a control circuit (50) configured to control said converter (40) for, in a motor operating mode of said machine (30), taking a supply current from said network (70) to supply said machine (30) and drive said wheel (35), and, in an alternator operating mode of said machine (30), in which a stream of air flows in said first ventilation duct (15) and imparts movement to said wheel (35), to provide supply power to said network (70) which is generated by said machine (30) driven by said wheel (35).
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 20, 2015
    Assignees: AIRBUS OPERATIONS SAS, AIRBUS OPERATIONS GmbH
    Inventors: Jérôme Mavier, Etienne Foch, Jean-Louis Lando, Xavier Roboam, Jan Barkowsky
  • Patent number: 9140272
    Abstract: A ram air fan outer housing for directing air from a ram air fan rotor and air from a ram air bypass into a ram air fan outlet. The outer housing includes an outer cylinder and a plenum connected at a joint region. The outer cylinder and the plenum are made of a laminate stacking sequence of at least four adjacent layers of plain-weave carbon-fiber fabric. Each layer of the stacking sequence has a weave orientation such that a first layer and a fourth layer are oriented forty-five degrees from each of a second layer and a third layer. The joint region is made of at least eight adjacent layers of plain-weave carbon-fiber fabric. The joint region laminate stacking sequence is formed by interleaving the four adjacent outer cylinder layers in the joint region with the four adjacent plenum layers in the joint region.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: September 22, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Lawrence Binek, Brent J. Merritt
  • Patent number: 9016078
    Abstract: A system for reducing flammability has a heat exchanger that cools ullage from a tank, condenses vapors within the ullage, and returns the cooled ullage and vapors to the tank.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: April 28, 2015
    Assignee: The Boeing Company
    Inventor: Alankar Gupta
  • Patent number: 8840729
    Abstract: An air conditioning drain cleaning system with an automated blow-out cycle to clean out an evaporator pan drain pipe. The system has a pneumatic valve assembly, a controller, a float level switch assembly and a plurality of air lines in a manifold for actuating the pneumatic valve assembly and blowing out the drain pipe. The controller directs the system to initiate or repeat a blow-out cycle until the drain pipe is clear. The pneumatic valve assembly bisects the drain pipe to selectively close the pipe for cleaning with a pair of high pressure air shots, one shot toward each pipe end to dislodge a clog. The float level switch assembly signals the controller if the condensate level in the drain pan drops. If the condensate level does not drop, the controller initiates a further blow-out cycle at increased pressures until the line is clear.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: September 23, 2014
    Inventors: Michael Herren, Douglas Comeaux
  • 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: 8571737
    Abstract: A hybrid vehicle which runs on power from at least one of an electric motor and an engine. When a required output exceeds a sum of an output of the electric motor which is driven by electric power supplied from a battery and an output of the engine while the hybrid vehicle is running on a drive mode in which at least the engine works as a drive source with a clutch engaged, a transmission ratio changing unit increases a ratio of electrical transmission to mechanical transmission of the output of the engine, and an engaging/disengaging control unit releases the clutch at a time point when the mechanically-transmitted output of the engine becomes 0, with the clutch engaged.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 29, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yutaka Tamagawa
  • Patent number: 8505317
    Abstract: Refrigerating device formed by a main compressor (190), a condenser (140) downstream of and in fluid communication with the main compressor (190), main expansion means (170) downstream of the condenser (140) and an evaporator (180) downstream of and in fluid communication with the main expansion means (170), which also comprises a turbocompressor unit (160) in fluid communication between the evaporator (180) and the main compressor (190) and a heat exchanger (150, 152) having a hot branch (150c) connected upstream, via an inlet line (145), to the condenser (140) and downstream, via an outlet line (149), to the main expansion means (170) and a cold branch (15Of) connected, upstream, to an expansion means (142, 144) mounted on a branch (146) of the line (145) and, downstream, to a turbine portion (162) of the turbocompressor unit (160). The invention also relates to a method for circulating a refrigerating fluid inside the abovementioned device.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: August 13, 2013
    Assignee: Angelantoni Life Science SRI
    Inventor: Maurizio Ascani
  • Publication number: 20130133348
    Abstract: An aircraft air provision system includes a power turbine that receives bleed air at a first pressure and provides rotational energy to a shaft and outputs output air at an intermediate pressure. The system also includes a compressor coupled to the shaft that receives input air at a second pressure that is lower than the first pressure and outputs compressed air having a pressure equal to the intermediate pressure and a mix chamber coupled to outputs of both the power turbine and the compressor where the output air and the compressed air are mixed. The system also includes a cooling turbine coupled to the shaft and that is in fluid communication with an output of the mix chamber.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 30, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Steven E. Squier
  • Publication number: 20130118191
    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: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Thomas M. Zywiak, Louis J. Bruno
  • 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
  • Patent number: 8365550
    Abstract: This invention relates to an aircraft air conditioning system with at least one compressor, a first conduit connected with a pressure side of the compressor and at least one cooling unit provided downstream of the compressor. A second bypass conduit is connected with the pressure side of the compressor to conduct at least part of the compressed air around at least one cooling unit and has a throttle for varying air flow therethrough.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 5, 2013
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventor: Franz Martin Vögel
  • Publication number: 20120192580
    Abstract: One embodiment of the present invention is a gas discharge system utilizing a temperature-actuated valve. The temperature-actuated valve uses a temperature-measuring device to sense the temperature of the natural gas after it pass through an expansion valve and after leaving a heat exchanger inside the discharge station. This temperature-measuring device sends a signal to a valve that is automatically actuated. If the temperature of the gas is too low, the valve is tightened, increasing the residence time in the heat exchanger and increasing the gas temperature. If the gas temperature is too high, the valve is opened, reducing the residence time in the heat exchanger, decreasing gas temperature. Using this temperature-actuated valve to control the temperature of a wet gas discharge station is also disclosed.
    Type: Application
    Filed: February 2, 2012
    Publication date: August 2, 2012
    Applicant: OSCOMP SYSTEMS INC.
    Inventor: Pedro T. Santos
  • Publication number: 20120180509
    Abstract: A bleed air conditioning system within an aircraft including a low-pressure bleed air line and a high-pressure bleed air line. The system includes an air-to-air heat exchanger and an un-cooled bleed air line to connect the air-to-air heat exchanger to the low-pressure bleed air line and the high-pressure bleed air line. The un-cooled bleed air line carries a flow of un-cooled bleed air from at least one of the low-pressure bleed air line and the high-pressure bleed air line to the air-to-air heat exchanger. The system also includes a cooled bleed air line connected to the air-to-air heat exchanger for carrying cooled bleed air from the air-to-air heat exchanger and a low-pressure bypass line connecting the low-pressure bleed air line to the cooled bleed air line, bypassing un-cooled bleed air from the low-pressure line around the air-to-air heat exchanger to the cooled bleed air line.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 19, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Gregory L. DeFrancesco
  • Publication number: 20120102994
    Abstract: Refrigerators, with particular, but not exclusive, application to the storage and transport of vaccines are disclosed. A refrigerator has a payload container (20) within which items can be placed for temperature-controlled storage. The payload container (20) is submerged in a reservoir (21) that contains water. The reservoir has a cooling region containing the payload container and a headspace containing water that is, in use, higher than the payload container. Cooling means, that might include a refrigeration unit (30) having cooling elements (32) or a cold thermal mass can cool waterwithin the headspace. Where there is a refrigeration unit, a power supply, typically solar powered, can act as a source of power for the refrigeration unit. Embodiments may include a freezer compartment close to the cooling elements (32). Alternatively, the cooling region may comprise a pipe manifold within the payload container.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 3, 2012
    Inventor: Ian Tansley
  • Patent number: 8042354
    Abstract: An air conditioning apparatus that includes a turbine and a compressor with rotors mounted on and fixed to a common rotatable shaft with a heat exchanger located between the turbine and the compressor. The air conditioning apparatus turbine has an inlet that is connected to a source of air such as aircraft ram air the outlet from the turbine and is positioned to direct outlet air from the turbine to the heat exchanger. The compressor which is located adjacent to and downstream from the heat exchanger has an inlet that is positioned to receive air exiting from the heat exchanger. In one embodiment, no external power is necessary to obtain cooling of liquid coolant located within the heat exchanger that is integral with the air conditioning apparatus and another embodiment includes test equipment.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: October 25, 2011
    Assignee: Fairchild Controls Corporation
    Inventors: Paul J. Dziorny, Benjamin D. Sellers
  • Patent number: RE43312
    Abstract: It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger evaporator, an expander and an indoor heat exchanger a radiator. An injection circuit for introducing high pressure refrigerant is provided in a halfway of an expansion process of said expander.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: April 17, 2012
    Assignee: Panasonic Corporation
    Inventors: Kazuo Nakatani, Yoshikazu Kawabe, Yuji Inoue, Noriho Okaza, Akira Hiwata