Control Of Static Pressure Of Conditioned Space Patents (Class 165/234)
  • Patent number: 9605906
    Abstract: A heat recovery system captures, stores, and releases waste heat from an exhaust. The system includes a first exchanger that removes waste heat from the exhaust and transfers it to a heat transfer fluid. A second heat exchanger transfers at least a portion of the waste heat from the heat transfer fluid to a storage device. The storage device continuously stores the waste heat until a predetermined temperature is obtained. A pump draws flow of the heat transfer fluid from the first heat exchanger to the second heat exchanger. A valve directs flow of the heat transfer fluid into the storage device during a charge mode and out of the storage device during a discharge mode.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: March 28, 2017
    Assignee: Denso International America Inc.
    Inventors: Bryan Styles, Kwangtaek Hong, Bradley Brodie
  • Patent number: 9538776
    Abstract: A pressurized oven is provided having a fully sealed cavity, reduces heat lost, shortens cooking time and saves energy of oven operation. The pressurized oven includes a cavity component, a door assembly, heating elements and a control system that includes a relief valve on top of the cavity. The relief valve includes a valve weight and a venting stub, wherein the valve weight sits on the top of the venting stub. The valve weight disposed on top of the venting stub remains closed and the gas is not released when the pressure is not sufficient to lift the valve weight. When the pressure inside the oven is sufficient to lift the valve weight, the valve weight block is lifted to open the valve, the gas is released and the pressure is decreased. Once the pressure becomes less than the valve weight, the valve closes and gas is no longer released.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: January 10, 2017
    Assignee: KitchenTek, LLC
    Inventor: Michael Gary Sanseverino
  • Patent number: 9194300
    Abstract: A system for bleeding air on an aircraft, including: at least one air bleed valve that can bleed a flow of air on the aircraft, a first temperature information module, a second temperature information module, at least one control module, and at least one data processing module coupled to the control module.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: November 24, 2015
    Assignee: SNECMA
    Inventors: Jerome Guy Roger Sebaa, Fabrice Bon
  • Patent number: 8915295
    Abstract: A zoned HVAC system comprises an HVAC unit including a climate control system and an air mover. In addition, the system comprises a supply air duct in fluid communication with the outlet of the HVAC unit. Further, the system comprises a return air duct in fluid communication with the inlet of the HVAC unit. Still further, the system comprises a plurality of zones positioned between the supply air duct and the return air duct. Moreover, the system comprises a bypass duct extending between the supply air duct and the return air duct. The bypass duct includes an active bypass damper having an open position, a closed position, and a plurality of partially opened positions. The system also comprises a control device configured to control the position of the bypass duct.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 23, 2014
    Assignee: Trane International Inc.
    Inventors: Billy W. Norrell, Gregory S. Brown, John Tanner Taylor, Jonathan David Douglas
  • Patent number: 8783336
    Abstract: A control system for providing thermal management of electronic equipment housed in a cabinet enclosure. The system can include a plurality of sensors in proximity to the cabinet enclosure for monitoring a temperature, a pressure and a humidity associated with the electronic equipment; and a controller in communication with the sensors for receiving data from the sensors, where the controller adjusts the temperature, the pressure and the humidity associated with the electronic equipment.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: July 22, 2014
    Assignee: IO Data Centers, LLC
    Inventor: George Slessman
  • Patent number: 8633424
    Abstract: An HVAC system for a work vehicle having an operator compartment for a vehicle operator, the system including a heating system, a compartment pressurizer blower, a compartment recirculation blower, a temperature sensor, and an operating mode switch, each operably coupled to an electronic circuit, wherein the circuit is configured to reduce pressurizer blower output when the operator selects high output from the heating system under certain predetermined temperature and conditions and operating modes to improve HVAC system performance.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 21, 2014
    Assignee: CNH America LLC
    Inventors: Leonid Chernyavsky, William H. Adamson, Alan G. Leupold, Nicholas J. Prenger, Mark D. Klassen, Michael C. Bunnel
  • Publication number: 20120255720
    Abstract: A temperature controller for a positive pressure room air purification unit is provided with a sensor for ambient room air temperature and supply duct air temperature. Based on the desired temperature, supply duct air may be drawn or drawn and heated.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 11, 2012
    Inventor: Gregory R. Miller
  • Patent number: 8108075
    Abstract: A system and method is presented for providing failsafe control in a control system used for receiving and controlling various object or medium properties in a heating, ventilating or air conditioning system. The control system comprises an HVAC controller, configured to receive failsafe data indicative of a safety related property of an object or medium, and to generate a state indicative of a connection status of a failsafe detector with respect to the HVAC controller. The control system further comprises a non-volatile memory, operably coupled to the HVAC controller and configured to store a connection indication indicative of a connection status of the failsafe detector with respect to the HVAC controller, wherein the HVAC controller is configured to generate a control signal based on satisfaction of a predetermined relationship between the generated state and the stored connection indication.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: January 31, 2012
    Assignee: R.W. Beckett Corporation
    Inventor: John E. Bohan, Jr.
  • Patent number: 8056617
    Abstract: An HVAC system for work vehicle having an operator compartment for an operator is disclosed. The HVAC system includes a pressurizer blower and an air-conditioning system coupled to an electronic circuit. The electronic circuit is configured to reduce the output of the pressurizer blower when the operator selects a high output from the air-conditioning system. The HVAC system is also configured to provide defog operation in both a manual mode and an automatic mode of operation. The HVAC system is configured to reset the defog operation when the vehicle ignition is turned off or turned back on. The HVAC system is also configured not to reset the defog operation when the operator switches rapidly between the automatic mode and the manual mode of operation.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: November 15, 2011
    Assignee: CNH America LLC
    Inventors: Mark D. Klassen, Leonid Chernyavsky, Alan G. Leupold, Paul E. Wibbels, Michael C. Bunnell, M. Javaid Arshad
  • Publication number: 20110162829
    Abstract: Systems, methods, and computer-implemented embodiments consistent with the inventions herein are directed to storing and/or transferring heat. In one exemplary implementation, there is provided a system for transferring/storing heat comprised of a heat exchange/storage apparatus including a chamber, and a heat input device adapted to heat/provide a vapor into the chamber. Other exemplary implementations may include one or more features consistent with a heat output device through which a working medium/fluid passes, a thermal storage medium located within the chamber, and/or a heat exchange system that delivers a heat exchange medium/fluid to the thermal storage medium.
    Type: Application
    Filed: October 31, 2010
    Publication date: July 7, 2011
    Inventor: XiaoDong Xiang
  • Publication number: 20110100617
    Abstract: The invention relates to an air-conditioning apparatus which regulates at least the temperature of at least one room to a predetermined temperature desired value (TRAUM SOLL) by ventilation with heated or cooled supply air. The air-conditioning apparatus has a supply air motor (15) which feeds the supply air over a supply air channel (10) to the room (1) to be air-conditioned, a cooling and/or heating device (30, 40 33) for the cooling or warming of the supply air, and an exhaust air motor (16) which draws the exhaust air from the room (1) to be air-conditioned over an exhaust air channel (11). According to the invention, the desired value (PAB SOLL) for the regulator of the exhaust air motor (16) forms a room excess pressure established with respect to the outside pressure (PA).
    Type: Application
    Filed: April 28, 2010
    Publication date: May 5, 2011
    Inventor: Albert BAUER
  • Patent number: 7681630
    Abstract: An HVAC system for work vehicle having an operator compartment for an operator is disclosed. The HVAC system includes a pressurizer blower and an air-conditioning system coupled to an electronic circuit. The electronic circuit is configured to reduce the output of the pressurizer blower when the operator selects a high output from the air-conditioning system. The HVAC system is also configured to provide defog operation in both a manual mode and an automatic mode of operation. The HVAC system is configured to reset the defog operation when the vehicle ignition is turned off or turned back on. The HVAC system is also configured not to reset the defog operation when the operator switches rapidly between the automatic mode and the manual mode of operation.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: March 23, 2010
    Assignee: CNH America LLC
    Inventors: Mark D. Klassen, Leonid Chernyavsky, Alan G. Leupold, Paul E. Wibbels, Michael C. Bunnell, M. Javaid Arshad
  • Patent number: 6929062
    Abstract: An air-conditioning apparatus regulates at least the temperature of at least one room to a predetermined temperature desired value (TRAUM SOLL) by ventilation with heated or cooled supply air. The air-conditioning apparatus has a supply air motor (15) which feeds the supply air through a supply air channel (10) to the room (1) to be air-conditioned, a cooling and/or heating device (30, 40 33) for the cooling or warming of the supply air, and an exhaust air motor (16) which draws the exhaust air from the room (1) to be air-conditioned through an exhaust air channel (11). The desired value (PAB SOLL) for the regulator of the exhaust air motor (16) forms a room excess pressure established with respect to the outside pressure (PA).
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: August 16, 2005
    Inventor: Albert Bauer
  • Publication number: 20030042013
    Abstract: The invention relates to an air-conditioning apparatus which regulates at least the temperature of at least one room to a predetermined temperature desired value (TRAUM SOLL) by ventilation with heated or cooled supply air. The air-conditioning apparatus has a supply air motor (15) which feeds the supply air over a supply air channel (10) to the room (1) to be air-conditioned, a cooling and/or heating device (30, 40 33) for the cooling or warming of the supply air, and an exhaust air motor (16) which draws the exhaust air from the room (1) to be air-conditioned over an exhaust air channel (11). According to the invention, the desired value (PAB SOLL) for the regulator of the exhaust air motor (16) forms a room excess pressure established with respect to the outside pressure (PA).
    Type: Application
    Filed: October 17, 2002
    Publication date: March 6, 2003
    Inventor: Albert Bauer
  • Patent number: 5761908
    Abstract: A self-contained ventilation apparatus is disclosed for ventilating buildings, e.g., patient rooms such as hospital rooms, waiting rooms, hospital operating rooms, doctors' offices, and clinics, especially rooms contaminated with infectious microorganisms. One or more blowers is provided. When there are two blowers, a first blower is provided for discharging room air to the atmosphere and a second blower is provided for introducing fresh outside air to the room to provide a continuous supply of fresh air to the room which is free of disease organisms. Both streams of air pass through an air-to-air heat exchanger to adjust the temperature of the incoming air to approach that exhausted from the room. When filters are used, both currents of air are preferably filtered, e.g., with a high efficiency particle air (HEPA) filter. Provision is made for automatically maintaining room air pressure at the desired value (typically below that of surrounding rooms) as filters gradually become clogged with dust.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: June 9, 1998
    Assignee: Air Quality Engineering
    Inventors: Heidi D. Oas, Dennis E. Welch