Patents by Inventor Paul Marie de Larminat
Paul Marie de Larminat 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: 10941967Abstract: A system for reducing the refrigerant pressure in an oil sump or in a cavity of a housing. The invention is particularly useful for reducing pressure in a compressor for heat pump applications that has been validated for water chiller operations or in turbine and generator systems in ORC systems generating electricity using refrigerant, the ORC systems essentially being a heat pump application operating in reverse. An auxiliary compressor, an auxiliary condenser or an ejector pump may be used to reduce pressure in the oil sump, to separate refrigerant from oil. The auxiliary compressor, the auxiliary condenser or the ejector pump may also be used to reduce the pressure of refrigerant in the housing of a compressor in heat pump applications at temperatures and pressures at which the compressor was validated for water chiller applications and of the turbine and generator in ORC applications.Type: GrantFiled: January 31, 2019Date of Patent: March 9, 2021Assignee: Johnson Controls Technology CompanyInventors: Paul Marie De Larminat, Damien Jean Daniel Arnou
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Publication number: 20190162457Abstract: A system for reducing the refrigerant pressure in an oil sump (10) or in a cavity (352) of a housing. The invention is particularly useful for reducing pressure in a compressor (23) for heat pump applications that has been validated for water chiller operations or in turbine and generator systems in ORC systems generating electricity using refrigerant, the ORC systems essentially being a heat pump application operating in reverse. An auxiliary compressor (509), an auxiliary condenser (709) or an ejector pump (609) may be used to reduce pressure in the oil sump (10), to separate refrigerant from oil. The auxiliary compressor (509), the auxiliary condenser (709) or the ejector pump (609) may also be used to reduce the pressure of refrigerant in the housing of a compressor in heat pump applications at temperatures and pressures at which the compressor was validated for water chiller applications and of the turbine and generator in ORC applications.Type: ApplicationFiled: January 31, 2019Publication date: May 30, 2019Inventors: Paul Marie De Larminat, Damien Jean Daniel Arnou
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Patent number: 10197316Abstract: A system for reducing the refrigerant pressure in an oil sump (10) or in a cavity (352) of a housing. The invention is particularly useful for reducing pressure in a compressor (23) for heat pump applications that has been validated for water chiller operations or in turbine and generator systems in ORC systems generating electricity using refrigerant, the ORC systems essentially being a heat pump application operating in reverse. An auxiliary compressor (509), an auxiliary condenser (709) or an ejector pump (609) may be used to reduce pressure in the oil sump (10), to separate refrigerant from oil. The auxiliary compressor (509), the auxiliary condenser (709) or the ejector pump (609) may also be used to reduce the pressure of refrigerant in the housing of a compressor in heat pump applications at temperatures and pressures at which the compressor was validated for water chiller applications and of the turbine and generator in ORC applications.Type: GrantFiled: February 19, 2014Date of Patent: February 5, 2019Assignee: Johnson Controls Technology CompanyInventors: Paul Marie De Larminat, Damien Jean Daniel Arnou
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Patent number: 10132542Abstract: A system includes a condenser and an evaporator. The condenser is configured to condense a working fluid, and the evaporator is configured to evaporate the working fluid. The system also includes piping that is configured to circulate the working fluid between the condenser and the evaporator. In addition, the system includes a low point configured to collect condensed working fluid. A controller is configured to selectively enable heating of the condensed working fluid collected within the low point based on a working fluid pressure of the low point.Type: GrantFiled: November 15, 2013Date of Patent: November 20, 2018Assignee: Johnson Controls Technology CompanyInventors: Paul Marie de Larminat, Roger Marc Levesque
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Publication number: 20160003510Abstract: A system for reducing the refrigerant pressure in an oil sump (10) or in a cavity (352) of a housing. The invention is particularly useful for reducing pressure in a compressor (23) for heat pump applications that has been validated for water chiller operations or in turbine and generator systems in ORC systems generating electricity using refrigerant, the ORC systems essentially being a heat pump application operating in reverse. An auxiliary compressor (509), an auxiliary condenser (709) or an ejector pump (609) may be used to reduce pressure in the oil sump (10), to separate refrigerant from oil. The auxiliary compressor (509), the auxiliary condenser (709) or the ejector pump (609) may also be used to reduce the pressure of refrigerant in the housing of a compressor in heat pump applications at temperatures and pressures at which the compressor was validated for water chiller applications and of the turbine and generator in ORC applications.Type: ApplicationFiled: February 19, 2014Publication date: January 7, 2016Inventors: Paul Marie DE LARMINAT, Damien Jean Daniel ARNOU
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Publication number: 20150308723Abstract: A system includes a condenser and an evaporator. The condenser is configured to condense a working fluid, and the evaporator is configured to evaporate the working fluid. The system also includes piping that is configured to circulate the working fluid between the condenser and the evaporator. In addition, the system includes a low point configured to collect condensed working fluid. A controller is configured to selectively enable heating of the condensed working fluid collected within the low point based on a working fluid pressure of the low point.Type: ApplicationFiled: November 15, 2013Publication date: October 29, 2015Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANYInventors: Paul Marie de Larminat, Roger Marc Levesque
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Patent number: 8092158Abstract: A method of positioning a shaft and associated seal in turbomachinery utilizing electromagnetic bearings. The method includes applying electrical power to the electromagnetic bearings' windings, the shaft center being in a first position and the shaft being in contact with the associated seal. Power adjustment to the electromagnetic bearings moves the shaft. Shaft movements can manipulate the seal, the movements being of decreasing amplitude to a position in which the seal is out of contact with the shaft when the shaft is rotated at its centered position during normal operation. The shaft is in its centered position during normal operation when the shaft axis is substantially coaxial with an axis of the electromagnetic bearings. Movements of decreasing amplitude may include oscillations of decreasing amplitude about one or more axes, or may include a spiral rotation with a decreasing radius to move the shaft center from initial to final positions.Type: GrantFiled: August 11, 2008Date of Patent: January 10, 2012Assignee: Johnson Controls Technology CompanyInventor: Paul Marie De Larminat
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Publication number: 20100006265Abstract: A cooling system to cool an electronic component is disclosed. The cooling system includes a first connection to receive refrigerant, a region to transfer heat from an electronic component to the refrigerant from the first connection, at least one of a cooling coil, a cooling tube, or a cooling block positioned in the region and in fluid communication with the first connection, and a second connection to return refrigerant from the region to an evaporator.Type: ApplicationFiled: July 13, 2009Publication date: January 14, 2010Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANYInventors: Paul Marie DE LARMINAT, Ivan JADRIC, Lars Skovlund ANDERSEN, Koman B. NAMBIAR
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Publication number: 20090045582Abstract: A method of positioning a shaft and associated seal in turbomachinery utilizing electromagnetic bearings. The method includes applying electrical power to the electromagnetic bearings' windings, the shaft center being in a first position and the shaft being in contact with the associated seal. Power adjustment to the electromagnetic bearings moves the shaft. Shaft movements can manipulate the seal, the movements being of decreasing amplitude to a position in which the seal is out of contact with the shaft when the shaft is rotated at its centered position during normal operation. The shaft is in its centered position during normal operation when the shaft axis is substantially coaxial with an axis of the electromagnetic bearings. Movements of decreasing amplitude may include oscillations of decreasing amplitude about one or more axes, or may include a spiral rotation with a decreasing radius to move the shaft center from initial to final positions.Type: ApplicationFiled: August 11, 2008Publication date: February 19, 2009Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANYInventor: Paul Marie DE LARMINAT
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Patent number: 7181928Abstract: Apparatus and methods are provided for cooling motors used to drive gas and air compressors. In particular, the cooling of hermetic and semi-hermetic motors is accomplished by a gas sweep using a gas source located in the low-pressure side of a gas compression circuit. The gas sweep is provided by the creation of a pressure reduction at the compressor inlet sufficient to draw uncompressed gas through a motor housing, across the motor, and out of the housing for return to the suction assembly. The pressure reduction is created by means provided in the suction assembly, such as a nozzle and gap assembly, or alternatively a venturi, located upstream of the compressor inlet. Additional motor cooling can be provided by circulating liquid or another cooling fluid through a cooling jacket in the motor housing portion adjacent the motor.Type: GrantFiled: June 29, 2004Date of Patent: February 27, 2007Assignee: York International CorporationInventor: Paul Marie de Larminat