Plenum Type Patents (Class 236/13)
  • Patent number: 9632547
    Abstract: A cooling module for cooling at least two server modules that are configured to house a plurality of servers, the cooling module including a housing having an interior containing air, an intake into the housing, an outlet from the housing, at least one fan configured to move the air from the intake to the outlet and at least one sprayer configured to spray a mist into the air in the interior for evaporative cooling of the interior. Also a system formed of the cooling module, first and second server modules and a plenum connecting the outlet of the cooling module and intakes of the first and second server modules.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 25, 2017
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Walter Mark Hendrix, Deepak Kumar Sivanandan
  • Patent number: 9509130
    Abstract: Both a miniature circuit breaker with short-circuit self-locking function and a miniature circuit breaker with position state detection function include: a first miniature circuit and a miniature circuit breaker operation output device. A motor, an action unit and a control unit are located within the casing of the miniature circuit breaker operation output device. The motor outputs a torque, the action unit obtains the torque and the torque is converted into the closing or breaking operation of the first miniature circuit breaker, the control unit controls the rotation and stop of the motor. A position state detection mechanism is located within the casing of the miniature circuit breaker operation output device of the miniature circuit breaker with position state detection function and triggers the control unit to stop the motor when the closing or breaking operation of the first miniature circuit breaker reaches the specified position.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: November 29, 2016
    Assignee: HUBEI SHENGJIA WIRING CO., LTD.
    Inventor: Jiasheng Wan
  • Patent number: 9488369
    Abstract: A gas mixing device has a plurality of interleaved rows of adjustable louvers. When at least two flowing gas streams are received that are desired to be mixed, the louvers of each row directs the gas streams in a direction different from that of the adjacent rows, mixing the gas streams. When effectively only a single flowing gas stream is received, the louvers are positioned vertically thereby reducing the pressure drop across the gas mixing device.
    Type: Grant
    Filed: May 5, 2012
    Date of Patent: November 8, 2016
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventors: Mitchell B. Cohen, Todd D. Hellewell
  • Patent number: 9187918
    Abstract: A high-rise building has a stairwell, an air supply shaft, inlet openings connecting the air supply shaft to the stairwell, and a pressure system for keeping the stairwell free from smoke. The stairwell is vertically divided into several partial spaces. The separation is performed by at least one partition. Each partition has a door enabling a passage from one partial space of the stairwell into an adjacent partial space.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: November 17, 2015
    Assignee: SWISS RALTEC GMBH
    Inventors: Horst A. Ermer, Hans Gaida
  • Publication number: 20150136377
    Abstract: A control method for a heat transfer system, wherein the heat transfer system comprises a supply conduit (12), at least one load circuit (2) and a heat transfer device (6; 28) between the supply conduit and the at least one load circuit, wherein a supply flow (qS) in the supply conduit (12) is detected on the basis of a desired entry-side load temperature (Tref), of an actual entry-side load temperature (TL) which is detected in the load circuit (2) and of a load flow (qL) in the load circuit (2), as well to as a heat transfer system, in which such a control method is applied.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Carsten Skovmose KALLESØE, Brian Kongsgaard NIELSEN
  • Patent number: 8960269
    Abstract: A heat exchanger includes: a bypass valve; a stack of standard tubes; and, in the stack, a pair of stacked-together adapter tubes. Each standard tube end has spaced-apart walls including openings. Each adapter tube end has: a wall including an opening; and a passage. At one end of the pair, the passages communicate with one another and the openings communicate with the openings in adjacent standard tubes; at the other end, the openings communicate with the openings in adjacent standard tubes. The valve includes a plug with opposed plug walls, one plug wall having one of an inlet and outlet, the plug being disposed with its walls between and at said other end of the pair and with the inlet and outlet communicating with the passages. An actuator is adjacent to the plug and has a reciprocating plunger for selectively blocking at least said one of the inlet and outlet.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: February 24, 2015
    Assignee: Dana Canada Corporation
    Inventors: Brian Cheadle, Yuri Peric, Doug Vanderwees
  • Patent number: 8936202
    Abstract: A system for heating a facility is provided. The system includes a first inlet from a district heating system. A heating system is arranged having a condensate outlet. A hyper-condensate recycler is provided having a second inlet coupled to the condensate outlet and a third inlet coupled to the first inlet. The hyper-condensate recycler includes a first outlet. A separator having a fourth inlet is coupled to the first outlet, the separator further having a second outlet fluidly coupled to the first inlet.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: January 20, 2015
    Assignees: Consolidated Edison Company of New York, Inc., Hudson Fisonic Corporation
    Inventors: Robert Kremer, Vladimir V. Fisenko, A. Arthur Kressner, Joseph Carbonara, Edward Gerard Ecock
  • Patent number: 8397527
    Abstract: This invention integrates energy saving lighting with energy saving HVAC (Heating, Ventilating and Air Conditioning). This system is termed by the inventor “ILAC” (Integrated Lighting and Air Conditioning). An ILAC system includes light fixtures mounted in a ceiling and, emitting lamp heat into a plenum and visible light into a room. A central computer controls both lighting and HVAC systems. In a COOL mode an HVAC unit cools the room through a supply air duct and return air duct, and the lamp heat exits the plenum through an exhaust duct. In a HEAT mode the HVAC heats the room through the same supply air duct, a ceiling-to-plenum duct carries the heated room air into the plenum, and an HVAC return air duct carries room and plenum heat back into the HVAC unit that uses less power to heat the lamp-warmed return air. In a thermostat-controlled OFF mode, warm room air convects through the ceiling duct into the plenum and exhausts through a plenum exhaust duct along with lamp-heated plenum air.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: March 19, 2013
    Inventor: Jack V. Miller
  • Patent number: 8302874
    Abstract: When the detected temperature by the first temperature sensor is greater than the preset temperature value, the controller controls the airflow capacity of the waste heat inputted into the first intake apparatus to be reduced and controls the airflow capacity of the cold air inputted into the second intake apparatus to increase, therefore, the temperature of the waste heat inputted into the first intake apparatus is reduced. When the detected temperature by the first temperature sensor is less than the preset temperature value, the controller controls the heater to heat the waste heat inputted into the first intake apparatus, when the detected temperature by the first temperature sensor reaches the preset temperature value, the controller controls the first valve to open, to output the waste heat.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: November 6, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Zh-Wei Jian
  • Patent number: 8209066
    Abstract: Outside air enters a ram air scoop on an aircraft frame, and is ducted to a ram air control valve. The air control valve outputs a desired air mass flow to a cyclone air-water separator which removes moisture and produces a dry air flow. A heater assembly heats the dry air to a desired temperature and directs the heated air into an equipment bay enclosure on the aircraft. The relative humidity of the heated air is sensed by an air moisture sensor which produces a corresponding signal. Other sensors disposed near a payload in the bay enclosure produce corresponding air temperature and air pressure signals. All the sensor signals are input to a processor or controller configured to activate the air control valve and the heater assembly according to set points for temperature and humidity that are specified for the payload in the bay enclosure.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: June 26, 2012
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Michel Engelhardt
  • Patent number: 8091623
    Abstract: The invention relates to an air mixer vent (5), designed in particular for a motor vehicle air conditioning system (1). Said vent comprises an air deflector element (15), which is located on the air mixer vent (5) and protrudes from a surface of said vent (5), the latter (5) being configured as a partially cylindrical vent or having a curved cross-section in relation to the pivoting axis (6).
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: January 10, 2012
    Assignee: Behr GmbH & Co. KG
    Inventors: Roland Hackl, Thorsten Möllert, Thomas Zeller
  • Patent number: 7967063
    Abstract: An air conditioning apparatus has a cool-side door device and a heating-side door device between an evaporator and a heater core. The cool-side door device is configured to open and close a cool air passage through which a cool air generated by the evaporator flows. The heating-side door device is configured to open and close a heating air passage through which the cool air flows to be heated by the heater core. At least one of the cool-side door device and the heating-side door device is constructed of a plurality of doors. The plurality of doors is configured to begin to open successively when being opened from a fully closed condition.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: June 28, 2011
    Assignee: Denso Corporation
    Inventors: Hiroyuki Sato, Toshihiko Muraki
  • Patent number: 7954540
    Abstract: A HVAC assembly includes a temperature mixing valve that comprises a shaft, an upper paddle, a lower paddle, and a yielding means. The upper paddle and the lower paddle attach to the shaft. The yielding means applies a force to keep the upper paddle sealed to prevent cold air in a cold air inlet from entering a mixing zone and the lower paddle moves away from a shared sealing boundary over a predetermined angle of rotation before the upper paddle initially moves to allow cold air to enter the mixing zone. Movement of the lower paddle away from the shared sealing boundary allows cold air to enter a hot air inlet and admix with hot air to mix in the mixing zone to produce non-stratified air.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: June 7, 2011
    Assignee: Delphi Technologies, Inc.
    Inventor: Garrett Wade Hoehn
  • Patent number: 7866174
    Abstract: A refrigerator having a cold air circulating apparatus includes: a main body, which is provided with a freezer compartment and a refrigerator compartment for preserving food items, and a temperature controlled compartment for preserving food items, separately from the freezer and the refrigerator compartments; a first cooling unit formed at the rear side of the freezer compartment for supplying cold air into the freezer compartment; a second cooling unit formed at the rear side of the refrigerator compartment for providing cold air into the refrigerator compartment; a cold air circulating device for circulating air inside the temperature controlled compartment by using the first cooling unit or the second cooling unit; and a control unit for controlling operations of the cold air circulating device to thereby regulate temperature inside the temperature controlled compartment, based on a user-set temperature for the temperature controlled compartment.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: January 11, 2011
    Assignee: Daewoo Electronics Corporation
    Inventor: Hak Jae Jung
  • Patent number: 7854135
    Abstract: The described method and apparatus pertains namely to the HVAC (Heating, Ventilating, and Air Conditioning) industry, though its many functions extend into any and all forms of air-fluid movement, metering, distribution, and containment. Essentially, the scope of operation of the method and apparatus encompasses all forms of scientific and engineering measurement dealing with fluid dynamics, fluid statics, fluid mechanics, thermal dynamics, and mechanical engineering as they pertain to precise, articulated control of air-fluid distribution and delivery. The described method and apparatus offers complete, comprehensive, and correct utilization of air-fluid movers and terminal devices under unique sensor logic control, from initial lab testing stages through to equipment cataloguing, selection, design and construction of any and all air-fluid distribution systems in entirety, whereas previously there was no such cohesive, total and terminal method of control for these systems or their components.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: December 21, 2010
    Inventor: Daniel Stanimirovic
  • Patent number: 7802734
    Abstract: The described method and apparatus pertains namely to the HVAC (Heating, Ventilating, and Air Conditioning) industry, though its many functions extend into any and all forms of air-fluid movement, metering, distribution, and containment. Essentially, the scope of operation of the method and apparatus encompasses all forms of scientific and engineering measurement dealing with fluid dynamics, fluid statics, fluid mechanics, thermal dynamics, and mechanical engineering as they pertain to precise, articulated control of air-fluid distribution and delivery. The described method and apparatus offers complete, comprehensive, and correct utilization of air-fluid movers and terminal devices under unique sensor logic control, from initial lab testing stages through to equipment cataloguing, selection, design and construction of any and all air-fluid distribution systems in entirety, whereas previously there was no such cohesive, total and terminal method of control for these systems or their components.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: September 28, 2010
    Inventor: Daniel Stanimirovic
  • Patent number: 7775451
    Abstract: The invention relates to a variable flow mixing valve for use in a Heating Ventilation and Air Conditioning module. The module is particularly suited for use in a vehicle. The variable flow mixing valve includes drive means which drive a mixing door and a baffle between various positions in order to allow a relatively warm flow of air, from a first chamber, to mix with a relatively cool flow of air from a second chamber. The baffle and door are linked in such a way as to provide an aperture therebetween through which, in use, the first and/or second flows of air pass. A parking area is also provided for the baffle and is shaped in order to reflect airflow back toward the first and second chambers.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: August 17, 2010
    Assignee: Delphi Technologies, Inc.
    Inventor: Frederic Leoni
  • Publication number: 20080179408
    Abstract: Systems and methods to regulate the amount of outdoor air that is introduced into a building. These systems and methods use the cooling coil control signal which is a function of the load on the cooling coil. These systems and methods utilize extremum seeking control logic to vary the flow of outdoor air into the building in response to these load determinations.
    Type: Application
    Filed: January 30, 2007
    Publication date: July 31, 2008
    Inventor: John E. Seem
  • Publication number: 20070262161
    Abstract: A power saving apparatus is applied in a temperature regulator. The temperature regulator comprises a compressor. The power saving apparatus is electrically connected to the temperature regulator. The power saving apparatus comprises a sensor, a processing unit and a switching unit. The sensor is for sensing temperatures to generate a sensing signal. The processing unit is connected to the sensor for receiving the sensing signal to generate a switching instruction. The switching unit switches the compressor into an operation status or a silence status based on the switching instruction.
    Type: Application
    Filed: October 25, 2006
    Publication date: November 15, 2007
    Inventor: Philip Davies
  • Patent number: 7275586
    Abstract: The invention relates to a heating or air-conditioning system for a motor vehicle, by which individual zones of the vehicle interior can be supplied with separately temperature-controlled air. An improved heating or air-conditioning system, which requires just a small amount of installation space, feeds differently temperature-controlled air to a plurality of air-conditioning zones. Despite the small amount of installation space, optimum mixing of cold air and warm air takes place in the heating or air-conditioning system, with the result that the air emerging from air-outlet openings in a respective air-conditioning zone have a constant temperature over the outlet cross section.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: October 2, 2007
    Assignee: Behr GmbH & Co.
    Inventors: Oliver Beck, Michael Förster, Christian Grömmer, Norbert Wöcht
  • Patent number: 7201220
    Abstract: An air conditioner for automotive vehicles is disclosed. The flow rates of air supplied to an evaporator (4) and a heater (5) are adjusted by rotationally displacing a scroll casing (2b) and thus changing an air flow from a blower (2) to a predetermined direction. The air-mix door can thus be eliminated to allow a smaller size of an air-conditioner casing (3) (air-conditioning unit (1)). Also, the ratio between cool air flow rate and hot air flow rate is adjusted by rotationally displacing the scroll casing (2b) with a spur gear (2c) and, therefore, the size and the production cost of the air conditioner can be reduced as compared with a conventional system in which an air-mix door is swung by a link mechanism.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: April 10, 2007
    Assignee: DENSO Corporation
    Inventors: Takahiro Tokunaga, Koji Ito, Masakazu Nagaya
  • Patent number: 7061202
    Abstract: An automobile servomotor controller includes a master control unit having a master control circuit for transmitting a designation signal and a slave unit having a motor and a control circuit which controls driving of a motor by outputting an operation signal to a driving device depending upon said designation signal. The slave unit is constructed by a same feedback control unit having a non-feedback control unit for inhibiting the operation of the motor until a target is changed by an input of a new designation signal with a target reached state and a feedback control unit for driving the motor to reach a target state by detecting a present position value with a position detecting device, and a control inhibiting signal for inhibiting the feedback control is individually provided to the designation signal transmitted from the master control circuit to the non-feedback control unit.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: June 13, 2006
    Assignee: Calsonic Kansei Corporation
    Inventors: Hideki Sunaga, Futoshi Araki, Kaoru Tanaka
  • Patent number: 7017659
    Abstract: A vehicle air-conditioning system adjusts the temperature at an outlet by a combined amount of air flowing through a first bypass passage adjusted by an air mixing door and air flowing through a second bypass passage adjusted by a cool air adjusting door independently of the first bypass. A cool air adjusting door control unit adjusts the opening of the cool air adjusting door so that the temperature detected by a discharge temperature sensor comes closer to a target discharge temperature for precise control of discharge temperature, and also causes the cool air adjusting door to be fully open when the opening of the air mixing door determined by an air mixing door opening setting unit is equal to or smaller than a predetermined degree of opening, so as to maintain a steady amount of air discharged from the outlet.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: March 28, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Isao Tsunoda
  • Patent number: 7005821
    Abstract: In a servomotor controller, when a comparing circuit (70) detects that a position of an object to be controlled has been achieved to a target position, an operation inhibiting signal generating section (71) supplies an operation inhibiting signal (71a) to an operation permitting/inhibiting signal-processing section (66), and obtains an operation stopped state of an H bridge-driving processing section (67) for controlling driving of a motor. A LIN communication processing section (61) receives information to a self address supplied from a superordiante device, and outputs a forced operation (recovery) request (61R) in the received information. The operation state of the H bridge-driving processing section (67) is obtained through an operation permitting trigger signal generating section (65) and the operation permitting/inhibiting signal-processing section (66) through the H bridge-driving processing section (67).
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: February 28, 2006
    Assignee: Calsonic Kansei Corporation
    Inventors: Hideki Sunaga, Futoshi Araki, Kaoru Tanaka
  • Patent number: 6971440
    Abstract: The invention relates to a heating or air-conditioning system for a motor vehicle, by which individual zones of the vehicle interior can be supplied with separately temperature-controlled air. An improved heating or air-conditioning system, which requires just a small amount of installation space, feeds differently temperature-controlled air to a plurality of air-conditioning zones. Despite the small amount of installation space, optimum mixing of cold air and warm air takes place in the heating or air-conditioning system, with the result that the air emerging from air-outlet openings in a respective air-conditioning zone have a constant temperature over the outlet cross section.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: December 6, 2005
    Assignee: Behr GmbH & Co.
    Inventors: Oliver Beck, Michael Forster, Christian Grommer, Norbert Wocht
  • Patent number: 6945323
    Abstract: An automotive air conditioning system includes: an air conditioning duct having an outlet; an evaporator; a heater core; an air mix door that divides air passing through the air conditioning duct into to pass through the heater core and to bypass the heater core; an outlet air temperature sensor; a control unit; a primary bypass passageway defined by the air mix door; a secondary bypass passageway different from the primary bypass passageway; and a cold air controlling door that controls an air flow rate in the secondary bypass passageway. The control unit sets an opening for the air mix door to obtain air conditioned to the target outlet air temperature when the cold air controlling door is opened to an initial opening and controls the opening to cause a temperature detected by the outlet air temperature sensor to approach a target outlet air temperature.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: September 20, 2005
    Assignee: Honda Motor Co., Ltd.
    Inventor: Isao Tsunoda
  • Patent number: 6921047
    Abstract: A mixer includes a fresh air tube defining a passage having an inlet receiving conditioned air from an air conditioning pack. The fresh air tube includes an outlet providing mixed air to a cabin of the aircraft. An outer tube at least partially surrounds the fresh air tube and receives recirculated air from the cabin. Multiple holes in the fresh air tube fluidly connect the outer tube to the fresh air tube. The warm recirculation air surrounds the portion of the fresh air tube to heat it preventing ice from forming. The warm recirculation air entering the fresh air tube through the holes homogeneously mixes with the conditioned air from the pack to provide a uniform mixture of air within the fresh air tube, which further ensures the prevention of ice build up.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: July 26, 2005
    Assignee: Hamilton Sundstrand
    Inventors: Charles J. McColgan, Donald R. Desmarais, Jr., Christopher G. Haddad, Thomas M. Zywiak
  • Patent number: 6849234
    Abstract: A system and method for controlling operation of an ultraviolet air treatment device including an ultraviolet lamp positioned to treat air within an air handling system that operates in either an on state or an off state. The method includes activating the ultraviolet lamp, and determining the operational state of the air handling system. The ultraviolet lamp is deactivated upon expiration of a predetermined time period during which the air handling system remains in the off state. The predetermined time period is preferably 30-60 minutes, preferably 40 minutes for residential applications.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: February 1, 2005
    Assignee: Honeywell International Inc.
    Inventors: Tracy L. Lentz, Timothy J. Kensok, Jeffrey M. Hammer, Mark E. Stout, Richard N. Metzger, Jon W. Orr
  • Patent number: 6789617
    Abstract: The invention provides an air mixing damper apparatus and an air conditioning apparatus for vehicles where the temperature of discharged air can be changed linearly with respect to the operation of an actuator lever. A rotation speed adjustment mechanism is disposed between a plate door type air mixing damper 43A for opening and closing an air introducing face 42a of a heater core 42, and a rotation type lever 48 for an actuator 47 driving the air mixing damper 43A, for adjusting the rotation speed at an initial opening stage X and a final opening stage Z of the air mixing damper 43A, to a speed lower than at an intermediate opening stage Y.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: September 14, 2004
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yoshihiro Hashizume, Hideto Noyama, Shiro Matsubara
  • Patent number: 6779735
    Abstract: A system that allows fresh air to be brought into a furnace as part of the return air circuit. This not only helps to replace stale air within a home, it also provides adequate air supplies to establish enough positive pressure within the dwelling to prevent air infiltration around windows, doors, forced air registers and around room perimeters of rooms along the baseboards. The system consists of a furnace that has a return air supply duct, an intake louver and filter for bringing fresh air into the system, an intake fan mounted to the intake, an intake duct that brings the fresh air from the intake louver to the furnace and a motorized damper, installed in the intake duct, to control the flow or air. These components are controlled by a control panel that works with the thermostat and furnace controls to operate the intake fan and damper as for optimum operation.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: August 24, 2004
    Inventor: Richard S. Onstott
  • Patent number: 6718650
    Abstract: A personal dryer capable of expelling temperatured air uniformly throughout the dryer and/or different temperatured air at different regions of the dryer, so as to provide a user with the option of drying their entire body with a more desirable uniformly temperatured air and/or drying different bodily regions with different or varied, user-selectable temperatured air, and wherein such a personal dryer is capable of being pre-programmed to enable a user to dry his/her body in a user-specified regimen or manner.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: April 13, 2004
    Inventor: Sherry Ross
  • Patent number: 6718277
    Abstract: A method and system for controlling atmospheric conditions within a building. A conditioned fluid is supplied inside of the building and one or more atmospheric parameters in various locations inside of the building are sensed. An empirical atmospheric map is then generated and compared to a template atmospheric map. Pattern differentials are identified therebetween and corrective action to reduce the pattern differentials is determined. One or more of the quantity, quality, and distribution of the conditioned fluid is varied in accord with the corrective action determination.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: April 6, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Ratnesh Sharma
  • Publication number: 20040046038
    Abstract: An air blending apparatus having a housing with at least two air inlet chambers having air flow proportioning means controlling the intake flow of separate return and fresh air streams, an air blending chamber receiving the air streams and being constructed and arranged for intimately intermixing and blending these air streams, and air moving means for distributing the blended air through an air handler system to an enclosed building space.
    Type: Application
    Filed: June 13, 2003
    Publication date: March 11, 2004
    Inventor: Thomas C. Knowles
  • Patent number: 6609563
    Abstract: An air conditioning apparatus for an automotive vehicle includes a heater core and a mix door assembly installed in a case. The mix door assembly is detachably installed in the case through an opening formed at a side wall of the case. The mix door assembly constitutes a housing, a mix door and a slide mechanism. The slide mechanism is arranged to slide the mix door according to a received rotational force so as to vary the ratio of warm air to quantity and cool air quantity.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: August 26, 2003
    Assignee: Calsonic Kansei Corporation
    Inventors: Akihiro Tsurushima, Koji Murayama, Katsuhiro Kurokawa, Noriyuki Kitahara, Kouichi Yamazaki
  • Patent number: 6318096
    Abstract: A method of controlling the mixing of outside air and return air, entering an air handling unit, through inlets having dampers, the air handling unit having a coil for conditioning the incoming air and a fan for blowing the conditioned air into a conditioned space, the method including measuring the outside air temperature, and return air temperature, and a minimum coil temperature corresponding to a damper position calculating a correlation values from the outside air, return air, and a minimum temperatures determining a correlation function from the correlation value and damper positions, and using the correlation function to calculate the maximum damper position for an acceptable coil temperature.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: November 20, 2001
    Assignee: The University of Akron
    Inventors: Richard J. Gross, Steven P. Rooke, Patrick Lenahan, David W. Mullen
  • Patent number: 6304803
    Abstract: A heating, ventilation, and air conditioning system for a vehicle including a front HVAC control system that communicates with a rear HVAC control system. The rear HVAC control system includes a control panel having mode, temperature, and blower speed controls. The front HVAC control system includes a control panel having a rear manual control switch for enabling/disabling manual control of the rear HVAC system via the rear HVAC control panel. A microprocessor communicates control information from the front HVAC control system to the rear HVAC control system regardless of the position of the rear manual control switch. Whether the supplied control information is used by the rear HVAC control system is determined by the rear manual switch.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: October 16, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Hank Tien Dao
  • Patent number: 6296193
    Abstract: The flow air from a hot air duct and a cold air duct into a zone of a building is controlled in based upon performing a thermal energy balance calculation for the zone. That calculation produces a heat transfer setpoint from which a hot air flow setpoint and a cold air flow setpoint are derived. The hot and cold air flow setpoints respectively control the flow of air through the hot and cold air ducts.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: October 2, 2001
    Assignee: Johnson Controls Technology Co.
    Inventors: Jonathan D. West, John E Seem
  • Publication number: 20010003347
    Abstract: A temperature control device for a constant temperature chiller unit or a vending machine is provided. Thermal medium fluid such as water in the chiller unit is accurately controlled under starting mode, heating mode and cooling mode. Thermal medium fluid such as air in the vending machine is conveniently controlled in winter mode and summer mode. In the device, a heat exchanger is interposed within a compression circuit, and a bypass circuit is disposed at the downstream side of a pump so that through the bypass circuit thermal medium fluid receives heat from the heat exchanger.
    Type: Application
    Filed: December 7, 2000
    Publication date: June 14, 2001
    Inventors: Kazuyoshi Shimoda, Yasushi Sakamoto, Hideo Ryu, Motoharu Sugiyama, Ikuo Watanabe, Kazunori Takikawa
  • Patent number: 6241154
    Abstract: An air conditioning device has a controller, a fan motor, a by-path strangler, and a heat exchange pipe. The fan motor is disposed in front of the heat exchange pipe. The by-path strangler is disposed between the fan motor and the heat exchange pipe. The controller controls the by-path strangler. The controller has a central processing unit, an output control unit, a detect unit, and a sensor. The sensor senses an environmental detect value to the detect unit. The detect unit outputs the environmental detect value to the central processing unit. The central processing unit outputs a signal to the output control unit. The output control unit has a plurality of output junctions connected to a loading unit. The loading unit has a drive motor and two electric valves.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: June 5, 2001
    Assignee: Yiue Feng Enterprise Co., Ltd.
    Inventor: Kuo-Liang Weng
  • Publication number: 20010000407
    Abstract: Temperatures in a Dr side air-conditioning zone and a Pa side air-conditioning zone are controlled highly independently of each other without temperature interference between each zone. A room internal air temperature sensor and a room external air temperature sensor are provided. Dr side and Pa side temperature setters separately set room setpoint temperatures (Tset(Dr), Tset(Pa)) in each zone. First and second target blow-out temperature calculating portions, which include neural network, input the room setpoint temperatures and the temperature data. Then it calculates Dr side and Pa side target blow-out temperatures (TAO(Dr), TAO(Pa)) relative to each air-conditioning zones by using a neural network. Air-mixing doors separately adjusts the temperatures of conditioned air blown out from Dr side air passage and Pa side air passage to be the first and second target blow-out temperatures. Here, the neural network has the learning function, which adjusts its output to be desired data (teacher signal).
    Type: Application
    Filed: December 4, 2000
    Publication date: April 26, 2001
    Applicant: DENSO Corporation
    Inventors: Yoshinori Ichishi, Takayoshi Kawai, Yuji Ito, Katsuhiko Samukawa, Yuichi Kajino
  • Patent number: 6179044
    Abstract: A vehicle air-conditioning device with a rear air-conditioning unit does not having a temperature control device, yet prevents excessive hot air blow temperatures when the fan blow is low. A heat exchanger for heating the air blow from the blower is installed in the case of the air-conditioning unit at the rear of a dual air-conditioning type vehicle air-conditioning device along with a cooling air bypass path to allow cool air to bypass the heat exchanger. A cool air bypass door is installed in the cool air bypass path to open and close it as needed. When the blower is set in low speed mode and hot air heated by the heat exchanger is blown out from the blow path in foot mode, the cool air bypass door is set to a position to open the cool air bypass path in a process that mixes cool air and warm air in the blow path and lowers the temperature of the hot air.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: January 30, 2001
    Assignee: Denso Corporation
    Inventor: Hiroyuki Tabara
  • Patent number: 6112807
    Abstract: There is disclosed a system and method for preventing fogging of the windows of an automotive vehicle. The system and method operate the air conditioning system of the vehicle at temperatures where a high degree of probability of fogging exists. The method includes the steps of measuring the ambient temperature, the evaporator core temperature and operating the air conditioning compressor at specific duty cycles depending upon these temperatures. The duty cycle will be determined based upon these temperature variables as well as the relative humidity within the passenger cabin of the vehicle.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: September 5, 2000
    Assignee: Ford Motor Company
    Inventor: Gerhard Allan Dage
  • Patent number: 6079626
    Abstract: In building environmental control, primary HVAC services are distributed to multiple terminal units. An active diffuser terminal unit has a variable speed fan to controllably draw room air into the unit for reheating the air; and, conversely, to force conditioned air down into the space for cooling by reversing the direction of the fan motor. Variation of the fan speed serves to modulate the airflow direction mix through a combination of a vertical port and a horizontal port. This closed system avoids filtering plenum air, and reduces cost by supporting both heating and cooling services with a single fan.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: June 27, 2000
    Inventor: Thomas B. Hartman
  • Patent number: 6019288
    Abstract: A heating or air conditioning unit for the interior of vehicles with air outlets, which are disposed in the center plane of the interior of the vehicle, particularly in the dashboard and which include at least one centrally disposed center vent and two side vents, and with a control unit with adjusting elements for influencing the air emerging from the air outlets is provided. For the purpose of adjusting the division of air between the at least one center vent and the two side vents in the driver's side and the front seat passenger's side of the interior of the vehicle from the driver's seat, two air ducts, each leading to one of the side vents, branch off from the air duct leading to the at least one center vent and, at each branching site, an air splitter is disposed, which is controlled from an air distribution adjusting element, which is disposed in a control panel of the control unit, which is usually placed centrally in the dashboard in the interior of the vehicle.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: February 1, 2000
    Assignee: DaimlerChrysler AG
    Inventors: Klaus Arold, Dieter Heinle, Markus Schoellhorn, Manfred Weindorf
  • Patent number: 6016964
    Abstract: An air-mix door control device for an automobile air-conditioning system home-position-sets the air-mix door for the full-hot position or the full-cool position when it is necessary to control an air-mix door for a new target opening position other than a full-hot position or a full-cool position under a condition that an opening position detecting unit for detecting an opening position of the air-mix door causes a trouble. Also, the air-mix door control device calculates a reverse drive time required for reversely driving the air-mix door from the home-position-set position to the new target opening position so as to correct a time error derived from a torque variation of an air-mix door motor actuator due to a battery voltage. Thus, the air-mix door control device reversely drives the air-mix door according to the reverse drive time and controls the air-mix door for the new target opening position.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: January 25, 2000
    Assignee: Zexel Corporation
    Inventor: Masashi Ohkubo
  • Patent number: 6012515
    Abstract: A system and method for automatically controlling cabin air temperature T.sub.CBN in an aircraft having a cabin and a mixed air delivery system. The mixed air delivery system provides a flow of mixed air having an actual mixed air temperature into the cabin. The mixed air delivery system comprises a hot bleed air sub-system for providing a flow of hot bleed air, a cool air sub-system for providing a flow of cool air, and an ambient air sub-system for providing a flow of ambient air. The method comprises the steps of defining a selected cabin air temperature T.sub.CBN SEL, and then controlling the flow of hot bleed air, the flow of cool air, and the flow of ambient air such that the mixed air temperature is driven toward a target mixed air temperature defined as k(T.sub.CBN SEL -T.sub.CBN)+T.sub.CBN SEL, wherein k is a gain factor.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: January 11, 2000
    Assignee: Sikorsky Aircraft Corporation
    Inventors: P. Lars R. Stubbendorff, Hercules Georgeou, Michael D. Loschiavo
  • Patent number: 5988515
    Abstract: In a system and method for conditioning air in a vehicle, it is determined whether an inside air temperature detected by an inside air temperature sensor is stable, an outside air temperature is estimated based on the inside air temperature only when the inside air temperature is stable, a target conditioned air temperature is calculated using an estimated outside air temperature as well as the estimation of outside air temperature is repeated, and the estimated outside air temperature used for the calculation of the target conditioned air temperature is renewed only when the estimated outside air temperature is different from a prior estimated outside air temperature by a value more than a predetermined value. The outside air temperature is adequately estimated without providing an outside air temperature sensor. Consequently, a desirable air conditioning for vehicles may be performed simply and inexpensively.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: November 23, 1999
    Assignee: Sanden Corporation
    Inventors: Keiichi Funakoshi, Ichiro Kuwabara
  • Patent number: 5908154
    Abstract: In the air conditioning apparatus, the air conditioning amplifier unit e is connected to the plurality of door actuators through a single communication line and a single power source line, and also there is provided a fan motor maximum voltage limit control means which not only can create a communication signal to be transmitted through the single communication line in the form of two-way signals including a transmission signal containing door target stop position data to be transmitted to the door actuators, and a response signal to be sent back from the door actuators, but also, when the door target stop position data transmitted last time is different from the door target stop position data transmitted this time, can exert a maximum voltage limit on a fan motor, and, when the signal to be sent back from the door actuators, to the air conditioning amplifier unit is a control end signal which indicates that the door position reaches the target position and the door control is ended, can remove the exertion o
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: June 1, 1999
    Assignee: Calsonic Corporation
    Inventors: Hideki Sunaga, Masatoshi Suto
  • Patent number: 5904293
    Abstract: Control parameter (target opening) Xm is stored in a memory and the Xm value stored in the memory is used instead of a PBR value to calculate a deviation S value by a conventional control system. Change amount .DELTA.Xm of a first-order lag is found in response to the S value and the Xm value is corrected. The corrected Xm value is stored in the memory to update the memory contents and is transmitted to an air mix door actuator as a command value.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: May 18, 1999
    Assignee: Calsonic Corporation
    Inventor: Yoshitaka Okasato
  • Patent number: 5850873
    Abstract: A method is provided for reducing vapor generation in a temperature controlled fuel tank in a motor vehicle. The method cooperates with an apparatus having hot and cold fluid sources (20, 22), a heat exchanger (18) having hot and cold valves (26, 24) and an air blower (28) to force temperature conditioned discharge air flow onto a fuel tank (12). The method involves comparing actual and desired fuel temperature signals and producing a first error signal from the comparison. The method then produces a gain signal in response to an operating mode signal and the error signal. A first control signal is then generated in response to the first error signal representing the difference between a desired fuel temperature and the actual fuel temperature. Finally, the heat exchanger is actuated by supplying the first control signal to the cold and hot valves.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: December 22, 1998
    Assignee: Ford Global Technologies, Inc.
    Inventor: Alex Baoda Liu