Patents by Inventor Philippe Rigal
Philippe Rigal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11761686Abstract: An integrated air conditioning system having a first air conditioning unit having a first evaporator with a first input and a first output; a second air conditioning unit having a second evaporator with a second input and a second output; a first conduit fluidly connecting the first input with the second output; a second conduit fluidly connecting the second input with the first output. The first and second conduits and the first and second evaporators form a working fluid circuit.Type: GrantFiled: January 17, 2023Date of Patent: September 19, 2023Assignee: CARRIER CORPORATIONInventors: Batung Pham, Pierre Delpech, Philippe Rigal
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Publication number: 20230143201Abstract: An integrated air conditioning system having a first air conditioning unit having a first evaporator with a first input and a first output; a second air conditioning unit having a second evaporator with a second input and a second output; a first conduit fluidly connecting the first input with the second output; a second conduit fluidly connecting the second input with the first output. The first and second conduits and the first and second evaporators form a working fluid circuit.Type: ApplicationFiled: January 17, 2023Publication date: May 11, 2023Inventors: Batung Pham, Pierre Delpech, Philippe Rigal
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Publication number: 20180156505Abstract: An integrated air conditioning system having a first air conditioning unit having a first evaporator with a first input and a first output; a second air conditioning unit having a second evaporator with a second input and a second output; a first conduit fluidly connecting the first input with the second output; a second conduit fluidly connecting the second input with the first output. The first and second conduits and the first and second evaporators form a working fluid circuit.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Inventors: Batung Pham, Pierre Delpech, Philippe Rigal
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Patent number: 9909790Abstract: An integrated air conditioning system having a first air conditioning unit having a first evaporator with a first input and a first output; a second air conditioning unit having a second evaporator with a second input and a second output; a first conduit fluidly connecting the first input with the second output; a second conduit fluidly connecting the second input with the first output. The first and second conduits and the first and second evaporators form a working fluid circuit.Type: GrantFiled: September 18, 2007Date of Patent: March 6, 2018Assignee: CARRIER CORPORATIONInventors: Batung Pham, Pierre Delpech, Philippe Rigal
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Patent number: 8261561Abstract: An air conditioning system having a free-cooling mode. The system includes a refrigeration circuit have a compressor, a pump, an expansion device having a variable opening, and a controller. The controller selectively operates the system in the free-cooling mode by circulating the refrigerant through the refrigeration circuit via the pump. The system includes a free-cooling capacity control sequence resident on the controller. The free-cooling capacity control sequence adjusts the cooling capacity of the system at least by adjusting the variable opening based on the temperature difference between a working fluid temperature and a set point temperature.Type: GrantFiled: December 28, 2006Date of Patent: September 11, 2012Assignee: Carrier CorporationInventors: Philippe Rigal, Pierre Delpech, Batung Pham
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Publication number: 20110094246Abstract: An integrated air conditioning system having a first air conditioning unit having a first evaporator with a first input and a first output; a second air conditioning unit having a second evaporator with a second input and a second output; a first conduit fluidly connecting the first input with the second output; a second conduit fluidly connecting the second input with the first output. The first and second conduits and the first and second evaporators form a working fluid circuit.Type: ApplicationFiled: September 18, 2007Publication date: April 28, 2011Applicant: CARRIER CORPORATIONInventors: Batung Pham, Pierre Delpech, Philippe Rigal
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Publication number: 20100042265Abstract: An air conditioning system having a free-cooling mode. The system includes a refrigeration circuit have a compressor, a pump, an expansion device having a variable opening, and a controller. The controller selectively operates the system in the free-cooling mode by circulating the refrigerant through the refrigeration circuit via the pump. The system includes a free-cooling capacity control sequence resident on the controller. The free-cooling capacity control sequence adjusts the cooling capacity of the system at least by adjusting the variable opening based on the temperature difference between a working fluid temperature and a set point temperature.Type: ApplicationFiled: December 28, 2006Publication date: February 18, 2010Applicant: CARRIER CORPORATIONInventors: Philippe Rigal, Pierre Delpech, Batung Pham
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Publication number: 20090120110Abstract: A method for providing controllable amounts of heat recovery from a refrigerant circuit includes the steps of providing a cooling circuit comprising a compressor, a condenser, an expansion device and an evaporator connected in series by refrigerant flow lines; providing a heat recovery circuit comprising a heat recovery heat exchanger, the heat recovery circuit being connected to the cooling circuit so that the heat recovery heat exchanger is in parallel with the condenser, and the heat recovery heat exchanger being in heat exchange relationship with a fluid to be heated based upon an end-user demand for heat; and selectively flowing refrigerant through the condenser of the cooling circuit and the heat recovery heat exchanger of the heat recovery circuit so as to maintain temperature of the fluid within a temperature hand around a set point provided by the end user.Type: ApplicationFiled: September 30, 2005Publication date: May 14, 2009Applicant: CARRIER CORPORATIONInventors: Michel K. Grabon, Ba-Tung Pham, Philippe Rigal, Pierre Delpech
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Patent number: 7237394Abstract: An apparatus for managing refrigerant charge in an air conditioning unit comprising a cooling circuit through which a refrigerant flows from a compressor, through a condenser, and through an evaporator, a heat recovery circuit extending from a first terminus between the compressor and the condenser to a second terminus between the evaporator and the condenser, a heat recovery unit located between the first and second terminus of the heat recovery circuit, a first valve located between the condenser and the first terminus, a second valve located between the first terminus and the heat recovery unit, a third valve located on a cooling charge circuit having a first end on the cooling circuit between the condenser and the evaporator and a second end at the evaporator, a fourth valve located on a heating charge circuit having a first end on the heat recovery circuit and a second end at the evaporator, and a logic unit for sensing a saturated temperature and opening and closing the valves based upon the saturated tType: GrantFiled: September 30, 2004Date of Patent: July 3, 2007Assignee: Carrier CorporationInventors: Philippe Rigal, Ba-Tung Pham, Pierre Delpech
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Publication number: 20060064995Abstract: An apparatus for managing refrigerant charge in an air conditioning unit comprising a cooling circuit through which a refrigerant flows from a compressor, through a condenser, and through an evaporator, a heat recovery circuit extending from a first terminus between the compressor and the condenser to a second terminus between the evaporator and the condenser, a heat recovery unit located between the first and second terminus of the heat recovery circuit, a first valve located between the condenser and the first terminus, a second valve located between the first terminus and the heat recovery unit, a third valve located on a cooling charge circuit having a first end on the cooling circuit between the condenser and the evaporator and a second end at the evaporator, a fourth valve located on a heating charge circuit having a first end on the heat recovery circuit and a second end at the evaporator, and a logic unit for sensing a saturated temperature and opening and closing the valves based upon the saturated tType: ApplicationFiled: September 30, 2004Publication date: March 30, 2006Inventors: Philippe Rigal, Ba-Tung Pham, Pierre Delpech
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Patent number: 6871509Abstract: An air conditioning system is disclosed which takes advantage of low ambient temperature conditions so as to activate a refrigerant flow that bypasses the compressor. The activation of the refrigerant flow is achieved by the intelligent control of a pump positioned between the outlet of the condenser and the inlet of an expansion device upstream of the evaporator. The refrigerant flow produced by the pump does not require any particular positioning of the condenser and evaporator components with respect to each other. The evaporator preferably absorbs heat from water circulating in a secondary loop which is used to remove heat from a building by one or more fan coil units.Type: GrantFiled: October 2, 2002Date of Patent: March 29, 2005Assignee: Carrier CorporationInventors: Michel K. Grabon, Xavier Girod, Kenneth J. Nieva, Philippe Rigal
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Publication number: 20040065099Abstract: An air conditioning system is disclosed which takes advantage of low ambient temperature conditions so as to activate a refrigerant flow that bypasses the compressor. The activation of the refrigerant flow is achieved by the intelligent control of a pump positioned between the outlet of the condenser and the inlet of an expansion device upstream of the evaporator. The refrigerant flow produced by the pump does not require any particular positioning of the condenser and evaporator components with respect to each other. The evaporator preferably absorbs heat from water circulating in a secondary loop which is used to remove heat from a building by one or more fan coil units.Type: ApplicationFiled: October 2, 2002Publication date: April 8, 2004Inventors: Michel K. Grabon, Xavier Girod, Kenneth J. Nieva, Philippe Rigal
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Patent number: 6711911Abstract: An expansion valve is controlled in response to sensing conditions at the outlet of at least one compressor within a refrigeration loop in a manner that achieves low suction superheat operation of the compressor. In particular, a discharge superheat is computed using data obtained from a specific mathematical model of the compression process corresponding to the current capacity stage of the compressor. The position of the expansion valve is controlled so as to result in an actual discharge superheat being within a predetermined dead band amount of the computed discharge superheat.Type: GrantFiled: November 21, 2002Date of Patent: March 30, 2004Assignee: Carrier CorporationInventors: Michel K. Grabon, Philippe Rigal, Ba-Tung Pham
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Patent number: 6689226Abstract: The decontamination gel consists of one solution including: a) a thickening agent; b) an active agent of decontamination; in which the thickening agent (a), is an agent exclusively organic, chosen among water-soluble organic polymers. This gel is usable for radioactive decontamination of surfaces, especially metallic surfaces.Type: GrantFiled: March 20, 2002Date of Patent: February 10, 2004Assignee: S.T.M.I. Société des Techniques en Milieu IonisantInventors: David Cheung, Philippe Rigal, Stéphane Bargues, Frédéric Favier, Jean-Louis Pascal