Patents by Inventor Balaji Maniam
Balaji Maniam 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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Publication number: 20240044559Abstract: A refrigeration system comprises: an evaporator having an evaporator inlet and an evaporator outlet; a compressor having (i) a compressor outlet, and (ii) a compressor inlet coupled to the evaporator outlet; a first condenser loop coupled between the compressor outlet and the evaporator inlet, the first condenser loop comprising: a first inlet valve, a first condenser, and a first redistribution valve coupling the first condenser loop to the compressor inlet; and a second condenser loop coupled between the compressor outlet and the evaporator inlet, the second condenser loop comprising: a second inlet valve, a second condenser, and a second redistribution valve coupling the second condenser loop to the compressor inlet.Type: ApplicationFiled: March 31, 2023Publication date: February 8, 2024Inventors: Arash Moharreri, Balaji Maniam, Sai Rajeev Devaragudi
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Patent number: 10903701Abstract: A method of manufacturing an electric motor that includes a plurality of structural cooling features is provided, where the electric motor utilizes axial cooling channels integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack. A coolant manifold assembly, incorporated into the stator between left and right stator portions, provides a means of distributing coolant to the axial cooling channels.Type: GrantFiled: September 17, 2018Date of Patent: January 26, 2021Assignee: Atieva, Inc.Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Publication number: 20190381861Abstract: A method for heating the air within the passenger cabin of an electric vehicle is provided. The method utilizes a heat pump to permit efficient air recirculation by the vehicle's HVAC system, thereby increasing driving range, especially in cold weather conditions.Type: ApplicationFiled: June 21, 2018Publication date: December 19, 2019Applicant: Atieva, Inc.Inventors: Balaji Maniam, Adam Kasprzyk
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Publication number: 20190020231Abstract: A method of manufacturing an electric motor that includes a plurality of structural cooling features is provided, where the electric motor utilizes axial cooling channels integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack. A coolant manifold assembly, incorporated into the stator between left and right stator portions, provides a means of distributing coolant to the axial cooling channels.Type: ApplicationFiled: September 17, 2018Publication date: January 17, 2019Applicant: Atieva, Inc.Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Patent number: 10158263Abstract: A method of cooling an electric motor is provided utilizing axial cooling channels that are integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack and providing an efficient means of removing motor assembly heat. Additionally, as the coolant flows out of the cooling channels it impinges on the end windings, thereby providing a secondary means of cooling the motor assembly.Type: GrantFiled: August 17, 2016Date of Patent: December 18, 2018Assignee: ATIEVA, INC.Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Patent number: 10128701Abstract: An electric motor cooling system is provided utilizing axial cooling channels that are integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack and providing an efficient means of removing motor assembly heat. Additionally, as the coolant flows out of the cooling channels it impinges on the end windings, thereby providing a secondary means of cooling the motor assembly.Type: GrantFiled: August 17, 2016Date of Patent: November 13, 2018Assignee: ATIEVA, INC.Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Publication number: 20180054094Abstract: An electric motor cooling system is provided utilizing axial cooling channels that are integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack and providing an efficient means of removing motor assembly heat. Additionally, as the coolant flows out of the cooling channels it impinges on the end windings, thereby providing a secondary means of cooling the motor assembly.Type: ApplicationFiled: August 17, 2016Publication date: February 22, 2018Applicant: Atieva, Inc.Inventors: Emad Dlala, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Publication number: 20180054097Abstract: A method of cooling an electric motor is provided utilizing axial cooling channels that are integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack and providing an efficient means of removing motor assembly heat. Additionally, as the coolant flows out of the cooling channels it impinges on the end windings, thereby providing a secondary means of cooling the motor assembly.Type: ApplicationFiled: August 17, 2016Publication date: February 22, 2018Applicant: Atieva, Inc.Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Publication number: 20180054096Abstract: An electric motor cooling system is provided utilizing axial cooling channels that are integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack and providing an efficient means of removing motor assembly heat. Additionally, as the coolant flows out of the cooling channels it impinges on the end windings, thereby providing a secondary means of cooling the motor assembly.Type: ApplicationFiled: August 17, 2016Publication date: February 22, 2018Applicant: Atieva, Inc.Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Publication number: 20180054095Abstract: A method of cooling an electric motor is provided utilizing axial cooling channels that are integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack and providing an efficient means of removing motor assembly heat. Additionally, as the coolant flows out of the cooling channels it impinges on the end windings, thereby providing a secondary means of cooling the motor assembly.Type: ApplicationFiled: August 17, 2016Publication date: February 22, 2018Applicant: Atieva, Inc.Inventors: Emad Dlala, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
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Patent number: 8019568Abstract: A system includes an input and a thermal data processing module. The input receives a first oil temperature of an engine oil when an engine is turned on. The thermal data processing module estimates a first heat transfer from a piston of the engine to the engine oil. The thermal data processing module estimates a second heat transfer from the engine oil to an engine block of the engine. The thermal data processing module determines a second oil temperature of the engine oil based on the first oil temperature and the first and second heat transfers.Type: GrantFiled: October 28, 2008Date of Patent: September 13, 2011Inventors: Chad W. Lehner, Balaji Maniam, Gary D. Mandrusiak, David A. Smyczynski, Craig Lash
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Publication number: 20110051549Abstract: A central insert causes maximum fluid velocity to shift away from an external tube wall reducing friction losses at the tube wall. Centrifugal forces pull fluid away from a central insert wall minimizing friction at the insert wall. The insert may be used in the context of nozzles, flow tubes, vortex tubes, and other fluid pathways. In a nozzle, grooves may be added to the nozzle wall. By introducing these grooves at the exit or end of a nozzle, nucleation may be improved and cavitation may be triggered prior to a fluid entering an expansion tube. The nucleation ring may also be placed at the beginning of a nozzle such that cavitation starts within the nozzle.Type: ApplicationFiled: July 26, 2010Publication date: March 3, 2011Inventors: Kristian Debus, Thomas Gielda, Serguei Charamko, Balaji Maniam
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Publication number: 20110030390Abstract: A vortex tube allowing for control of the velocities, flow, and pressure differentials otherwise present in a free vortex like that found in a tornado is disclosed. The presently disclosed vortex tube may be used for the control and implementation of the otherwise chaotic aspects of a true tornado and vortex (i.e., with less energy and a narrowed and more focused and intense vortex) when implementing the critical flow regime in a fluid flow system.Type: ApplicationFiled: April 2, 2010Publication date: February 10, 2011Inventors: Serguei Charamko, Balaji Maniam
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Publication number: 20090119056Abstract: A system includes an input and a thermal data processing module. The input receives a first oil temperature of an engine oil when an engine is turned on. The thermal data processing module estimates a first heat transfer from a piston of the engine to the engine oil. The thermal data processing module estimates a second heat transfer from the engine oil to an engine block of the engine. The thermal data processing module determines a second oil temperature of the engine oil based on the first oil temperature and the first and second heat transfers.Type: ApplicationFiled: October 28, 2008Publication date: May 7, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Chad W. Lehner, Balaji Maniam, Gary D. Mandrusiak, David A. Smyczynski, Craig Lash
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Patent number: 7063138Abstract: The present invention concerns a method for cooling a passenger compartment in a hybrid vehicle that operates an engine intermittently during vehicle operation. The hybrid vehicle includes an HVAC system having an HVAC duct, a blower for directing a flow of air through the HVAC duct, an evaporator located within the HVAC duct, and a heater core. The heater core has a coolant inlet outlet and is located downstream of the evaporator in the HVAC duct. The method includes the steps of cooling a refrigerant; inducing a flow of the cooled refrigerant through the evaporator; blocking a flow of coolant through the coolant inlet and outlet to trap coolant in the heater core; activating the blower to move air through the evaporator and heater core; turning off the vehicle engine; measuring a duct outlet temperature; and starting the engine when the measured duct outlet temperature is above a predetermined temperature.Type: GrantFiled: May 25, 2004Date of Patent: June 20, 2006Assignee: General Motors CorporationInventors: Munther M. Salim, Gregory A. Major, Todd M. Tumas, Gaurav Anand, Balaji Maniam
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Publication number: 20050263275Abstract: The present invention concerns a method for cooling a passenger compartment in a hybrid vehicle that operates an engine intermittently during vehicle operation. The hybrid vehicle includes an HVAC system having an HVAC duct, a blower for directing a flow of air through the HVAC duct, an evaporator located within the HVAC duct, and a heater core. The heater core has a coolant inlet outlet and is located downstream of the evaporator in the HVAC duct. The method includes the steps of cooling a refrigerant; inducing a flow of the cooled refrigerant through the evaporator; blocking a flow of coolant through the coolant inlet and outlet to trap coolant in the heater core; activating the blower to move air through the evaporator and heater core; turning off the vehicle engine; measuring a duct outlet temperature; and starting the engine when the measured duct outlet temperature is above a predetermined temperature.Type: ApplicationFiled: May 25, 2004Publication date: December 1, 2005Inventors: Munther Salim, Gregory Major, Todd Tumas, Gaurav Anand, Balaji Maniam
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Patent number: 6955141Abstract: A cooling system has a diverter valve to selectively control the flow of coolant through an internal combustion engine having a cylinder block with a cooling jacket and a cylinder head mounted on the block with a cooling jacket. A controller, responsive to the temperature of the block and the head, controls the diverter valve and a water pump to provide adequate coolant flow through the head and the block as needed to maintain optimal operating temperatures. After the engine is shut off, the controller continues to operate the water pump and a cooling fan to continue to cool the engine for a period of time.Type: GrantFiled: August 6, 2003Date of Patent: October 18, 2005Assignee: General Motors CorporationInventors: Chandran B. Santanam, Dimitrios Rizoulis, Balaji Maniam, Gary D. Mandrusiak
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Publication number: 20050028756Abstract: A cooling system has a diverter valve to selectively control the flow of coolant through an internal combustion engine having a cylinder block with a cooling jacket and a cylinder head mounted on the block with a cooling jacket. A controller, responsive to the temperature of the block and the head, controls the diverter valve and a water pump to provide adequate coolant flow through the head and the block as needed to maintain optimal operating temperatures. After the engine is shut off, the controller continues to operate the water pump and a cooling fan to continue to cool the engine for a period of time.Type: ApplicationFiled: August 6, 2003Publication date: February 10, 2005Inventors: Chandran Santanam, Dimitrios Rizoulis, Balaji Maniam, Gary Mandrusiak