Patents by Inventor Srinivasa Rao Vaddiraju
Srinivasa Rao Vaddiraju 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: 20230322106Abstract: A charging station for a vehicle, a system and a method of charging the vehicle. The system includes a heat exchanger at the vehicle. The charging station includes a reservoir including a charging station coolant, a dispenser unit configured to circulate the charging station coolant from the reservoir through the vehicle to absorb heat generated at the vehicle, and a cooling unit for cooling the charging station coolant from the reservoir. Heat generated during the charging of the vehicle is transferred into a vehicle coolant circulating within the vehicle. The heat is transferred from the vehicle coolant to a charging station coolant. The charging station coolant is flowed out of the vehicle.Type: ApplicationFiled: April 7, 2022Publication date: October 12, 2023Inventors: Richard J. Lopez, Srinivasa Rao Vaddiraju
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Publication number: 20230322049Abstract: A heating, ventilation and air conditioning (HVAC) system of a vehicle includes a main compressor positioned along a refrigerant circuit circulating a flow of refrigerant therethrough. A chiller is located along the refrigerant circuit and is fluidly connected to a rechargeable energy storage system to cool the rechargeable energy storage system. A chiller outlet passage directs the flow of refrigerant from the chiller toward the main compressor, and an evaporator is located along the refrigerant circuit in a fluidly parallel relationship with the chiller. The evaporator is configured to cool a vehicle cabin. An evaporator outlet passage directs the flow of refrigerant from the evaporator toward the main compressor, and an auxiliary compressor is located along the evaporator outlet passage between the evaporator and the main compressor.Type: ApplicationFiled: April 6, 2022Publication date: October 12, 2023Inventors: Jacob Wright, Srinivasa Rao Vaddiraju, David O'Rourke
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Patent number: 11731532Abstract: A method is usable for cooling portions of a vehicle having a plurality of low temperature radiators (LTR), a rechargeable energy storage system (RESS), an i-condenser coolant circuit, and a RESS coolant circuit. Cooling the RESS occurs by comparing ambient temperature to target low and high temperatures. If the ambient temperature is below the target low temperature, coolant flow is routed through a first flow path placing the first and second LTR in the RESS coolant circuit. If the ambient temperature is between the target low and high temperatures, coolant flow is routed through a second flow path placing the first LTR in the RESS coolant circuit and the second LTR in the i-condenser coolant circuit. If the ambient temperature is above the target high temperature, coolant flow is routed through a third flow path placing the first and second LTR in the i-condenser coolant circuit.Type: GrantFiled: January 6, 2021Date of Patent: August 22, 2023Assignee: GM Global Technology Operations LLCInventor: Srinivasa Rao Vaddiraju
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Patent number: 11654786Abstract: An electric vehicle charging port includes a pair of charging pins each connected to a respective charging cable by a base. A pair of porous metallic cages surround the base of the pair of charging pins. A phase change material disposed in the pair of porous metallic cages and a vapor chamber is disposed between the base of the pair of charging pins and the pair of porous cage. The phase change material with an optional vapor chamber and high thermal conductivity (metal or graphite) foam or mesh to provide faster response of transient heat generation.Type: GrantFiled: October 19, 2020Date of Patent: May 23, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Taeyoung Han, Chih-hung Yen, Kuo-huey Chen, Bahram Khalighi, Vicente Domenech-Llopis, Srinivasa Rao Vaddiraju, Satish P. Ketkar
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Publication number: 20230142706Abstract: A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system includes a refrigerant circuit having a flow of refrigerant circulated therethrough. The refrigerant circuit includes a compressor, an internal condenser, and a chiller heat exchanger. A coolant circuit is fluidly connected to the refrigerant circuit and has a flow of coolant circulated therethrough. The coolant circuit includes the internal condenser, a heater core, and a rechargeable energy storage system (RESS). The refrigerant circuit and the coolant circuit exchange thermal energy at the internal condenser. When operated in an HVAC operating mode, the HVAC system is configured to heat one or more of the heater core and the RESS with thermal energy generated at the compressor.Type: ApplicationFiled: November 9, 2021Publication date: May 11, 2023Inventors: Srinivasa Rao Vaddiraju, Jeffrey A. Bozeman
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Publication number: 20230147794Abstract: A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system includes a refrigerant circuit having a flow of refrigerant circulated therethrough. The refrigerant circuit includes a compressor, an internal condenser, and a chiller heat exchanger. A coolant circuit is fluidly connected to the refrigerant circuit and has a flow of coolant circulated therethrough. The coolant circuit includes the chiller heat exchanger, the internal condenser, a heater core, a rechargeable energy storage system (RESS), and a three-way coolant valve to selectably direct the flow of coolant through the RESS and/or along a bypass passage to bypass the RESS.Type: ApplicationFiled: November 9, 2021Publication date: May 11, 2023Inventors: Srinivasa Rao Vaddiraju, Jeffrey A. Bozeman
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Publication number: 20230046910Abstract: A modular system for thermal control of a vehicle component includes a modular thermal control unit configured to be removably installed in a vehicle, the modular thermal control unit including a housing, a heat exchange component, and a connection assembly configured to removably connect the heat exchange component in thermal communication with a thermal loop of the vehicle.Type: ApplicationFiled: August 16, 2021Publication date: February 16, 2023Inventors: Neeraj S. Shidore, Srinivasa Rao Vaddiraju, Satish P. Ketkar, Norman K. Bucknor, Madhusudan Raghavan
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Publication number: 20220212566Abstract: A method is usable for cooling portions of a vehicle having a plurality of low temperature radiators (LTR), a rechargeable energy storage system (RESS), an i-condenser coolant circuit, and a RESS coolant circuit. Cooling the RESS occurs by comparing ambient temperature to target low and high temperatures. If the ambient temperature is below the target low temperature, coolant flow is routed through a first flow path placing the first and second LTR in the RESS coolant circuit. If the ambient temperature is between the target low and high temperatures, coolant flow is routed through a second flow path placing the first LTR in the RESS coolant circuit and the second LTR in the i-condenser coolant circuit. If the ambient temperature is above the target high temperature, coolant flow is routed through a third flow path placing the first and second LTR in the i-condenser coolant circuit.Type: ApplicationFiled: January 6, 2021Publication date: July 7, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Srinivasa Rao Vaddiraju
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Patent number: 11338749Abstract: An automotive vehicle includes a body having fore and aft portions. The vehicle includes a bumper beam coupled to the vehicle body proximate the fore portion and a heat exchanger disposed aft of the bumper beam. A fascia assembly is coupled to the vehicle body and extends about the bumper beam. The fascia assembly includes a fascia inlet configured to direct an airflow from the exterior of the fascia assembly to the interior of the fascia assembly. An energy absorption member is disposed between the fascia and the bumper beam. An air passage extends through at least one of the bumper beam and the energy absorption member. The air passage extends from an air passage inlet to an air passage outlet. The air passage inlet is positioned downstream of the fascia inlet with respect to the airflow, and the air passage outlet being positioned upstream of the heat exchanger.Type: GrantFiled: September 3, 2020Date of Patent: May 24, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jacob Wright, Changyoung Heo, Vinayshankar L. Virupaksha, Trevor T. Winch, Donald M. Jamison, Srinivasa Rao Vaddiraju, Amlanjyoti Barman
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Publication number: 20220118866Abstract: An electric vehicle charging port includes a pair of charging pins each connected to a respective charging cable by a base. A pair of porous metallic cages surround the base of the pair of charging pins. A phase change material disposed in the pair of porous metallic cages and a vapor chamber is disposed between the base of the pair of charging pins and the pair of porous cage. The phase change material with an optional vapor chamber and high thermal conductivity (metal or graphite) foam or mesh to provide faster response of transient heat generation.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Inventors: Taeyoung Han, Chih-hung Yen, Kuo-huey Chen, Bahram Khalighi, Vicente Domenech-Llopis, Srinivasa Rao Vaddiraju, Satish P. Ketkar
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Publication number: 20220063529Abstract: An automotive vehicle includes a body having fore and aft portions. The vehicle includes a bumper beam coupled to the vehicle body proximate the fore portion and a heat exchanger disposed aft of the bumper beam. A fascia assembly is coupled to the vehicle body and extends about the bumper beam. The fascia assembly includes a fascia inlet configured to direct an airflow from the exterior of the fascia assembly to the interior of the fascia assembly. An energy absorption member is disposed between the fascia and the bumper beam. An air passage extends through at least one of the bumper beam and the energy absorption member. The air passage extends from an air passage inlet to an air passage outlet. The air passage inlet is positioned downstream of the fascia inlet with respect to the airflow, and the air passage outlet being positioned upstream of the heat exchanger.Type: ApplicationFiled: September 3, 2020Publication date: March 3, 2022Inventors: Jacob Wright, Changyoung Heo, Vinayshankar L. Virupaksha, Trevor T. Winch, Donald M. Jamison, Srinivasa Rao Vaddiraju, Amlanjyoti Barman
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Patent number: 11207973Abstract: An actively controlled flap system includes a bar defining a rotational axis, a first flap rotatably coupled to the bar and configured to rotate about the rotational axis, and a second flap rotatably coupled to the bar and configured to rotate about the rotational axis, the second flap including an opening extending through the second flap. The first flap is rotatable between a first position in which the opening in the second flap is covered by the first flap and a second position in which the opening in the second flap is uncovered, and the second flap is rotatable between a third position and a fourth position.Type: GrantFiled: October 13, 2020Date of Patent: December 28, 2021Assignee: GM Global Technology Operations LLCInventors: Srinivasa Rao Vaddiraju, Nicholas J. Christoff
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Publication number: 20210155074Abstract: Methods and systems to dissipate heat in a vehicle include a first condenser portion, and a second condenser portion arranged parallel with the first condenser portion. The system includes a fan arranged parallel with the first condenser portion and the second condenser portion. The fan draws air flow from the first condenser portion and the second condenser portion. The system also includes a radiator arranged substantially perpendicular with the first condenser portion and the second condenser portion, and one or more covers controlled to an open or closed position. A controller controls the position of the one or more controlled covers.Type: ApplicationFiled: November 22, 2019Publication date: May 27, 2021Inventors: Srinivasa Rao Vaddiraju, Christopher M. Frizza, Todd C. Marhenke
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Patent number: 10634025Abstract: A skinning apparatus and a method of skinning a porous ceramic. The apparatus includes an axial skinning manifold. The axial skinning manifold includes a curved adaptive pipe to flow cement in a circumferential direction from an inlet at a first position and through an adaptive opening along an inner bend of the curve through a land channel disposed along the inner bend. The land channel emits the cement at a constant velocity from a land opening extending proximate the first position to a second position spaced apart from the first position. The land outlet emits cement at a constant velocity around the outer periphery of the porous ceramic to dispose a uniform skin thereon as the porous ceramic moves axially relative to the land outlet.Type: GrantFiled: May 5, 2017Date of Patent: April 28, 2020Assignee: Corning IncorporatedInventors: Thomas Richard Chapman, John Paul Bir Singh, Amber Leigh Tremper, Srinivasa Rao Vaddiraju, Kevin Lee Wasson
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Patent number: 10358372Abstract: An apparatus (10) for forming the outer layers of a glass laminate sheet comprises a reservoir (12), individual first (14a) and second (14b) distributors extending below and in fluid communication with the reservoir, and first (30a) and second (30b) slots positioned respectively at the bottom of the first and second distributors. The slots have a length, the distributors have sides and a middle, and the length of the slots on the sides of the distributors is desirably decreased relative to the length of the slots in the middle of the distributors. The apparatus is useful with a trough or isopipe (100) to provide clad glass streams to contact an overflowing core glass on respective sides of the trough or isopipe.Type: GrantFiled: September 30, 2014Date of Patent: July 23, 2019Assignee: CORNING INCORPORATEDInventors: Irene Mona Peterson, Olus Naili Boratav, Glen Bennett Cook, Joseph Michael Matusick, David John McEnroe, Srinivasa Rao Vaddiraju
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Patent number: 9803523Abstract: A process for operating an axial skinning apparatus for continuous manufacture of skinned ceramic honeycomb parts, including: determining the physical process parameters of the apparatus including: the rheology of the flowable skin cement; the geometry of the part to be skinned; and the geometry of the annulus gap of the skinning chamber; and calculating a plurality of dimensionless pressure gradient values (Lambda (?)) according to the formula (1): ? = ( ? ? ? P ) ? R 2 ? m ? ? L ? ( R V ) n ( 1 ) where ?P, P, R, V, L, and m and n are as defined herein; plotting a plurality of manifold pressures versus a plurality of part velocities; and selecting at least one operating window based on the skin quality of a plurality of preliminarily skinned parts.Type: GrantFiled: October 15, 2014Date of Patent: October 31, 2017Assignee: Corning IncorporatedInventors: Ralph Henry Hagg, Parasuram Padmanabhan Harihara, John Paul Bir Singh, Srinivasa Rao Vaddiraju
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Patent number: 9770973Abstract: An engine compartment assembly and a vehicle include an engine compartment. The engine compartment assembly and the vehicle also include an inlet configured to allow a flow of air into the engine compartment and an outlet configured to allow at least some of the flow of air out of the engine compartment. The engine compartment assembly and the vehicle further include a wall disposed closer to the outlet than the inlet. Generally, the wall extends in a manner to create an air dam which enhances the flow of air through at least part of the engine compartment. In certain embodiments, the wall extends outwardly from the belly pan away from the engine compartment to create a pressure reduction at the outlet which in turn enhances the flow of air through at least part of the engine compartment.Type: GrantFiled: July 18, 2016Date of Patent: September 26, 2017Assignee: GM Global Technology Operations LLCInventor: Srinivasa Rao Vaddiraju
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Publication number: 20170233298Abstract: A skinning apparatus and a method of skinning a porous ceramic. The apparatus includes an axial skinning manifold. The axial skinning manifold includes a curved adaptive pipe to flow cement in a circumferential direction from an inlet at a first position and through an adaptive opening along an inner bend of the curve through a land channel disposed along the inner bend. The land channel emits the cement at a constant velocity from a land opening extending proximate the first position to a second position spaced apart from the first position. The land outlet emits cement at a constant velocity around the outer periphery of the porous ceramic to dispose a uniform skin thereon as the porous ceramic moves axially relative to the land outlet.Type: ApplicationFiled: May 5, 2017Publication date: August 17, 2017Inventors: Thomas Richard Chapman, John Paul Bir Singh, Amber Leigh Tremper, Srinivasa Rao Vaddiraju, Kevin Lee Wasson
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Patent number: 9670809Abstract: A skinning apparatus and a method of skinning a porous ceramic. The apparatus includes an axial skinning manifold. The axial skinning manifold includes a curved adaptive pipe to flow cement in a circumferential direction from an inlet at a first position and through an adaptive opening along an inner bend of the curve through a land channel disposed along the inner bend. The land channel emits the cement at a constant velocity from a land opening extending proximate the first position to a second position spaced apart from the first position. The land outlet emits cement at a constant velocity around the outer periphery of the porous ceramic to dispose a uniform skin thereon as the porous ceramic moves axially relative to the land outlet.Type: GrantFiled: November 19, 2013Date of Patent: June 6, 2017Assignee: Corning IncorporatedInventors: Thomas Richard Chapman, John Paul Bir Singh, Amber Leigh Tremper, Srinivasa Rao Vaddiraju, Kevin Lee Wasson
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Publication number: 20160229729Abstract: An apparatus (10) for forming the outer layers of a glass laminate sheet comprises a reservoir (12), individual first (14a) and second (14b) distributors extending below and in fluid communication with the reservoir, and first (30a) and second (30b) slots positioned respectively at the bottom of the first and second distributors. The slots have a length, the distributors have sides and a middle, and the length of the slots on the sides of the distributors is desirably decreased relative to the length of the slots in the middle of the distributors. The apparatus is useful with a trough or isopipe (100) to provide clad glass streams to contact an over-flowing core glass on respective sides of the trough or isopipe.Type: ApplicationFiled: September 30, 2014Publication date: August 11, 2016Inventors: Irene Mona Peterson, Olus Naili Boratav, Glen Bennett Cook, Joseph Michael Matusick, David John McEnroe, Srinivasa Rao Vaddiraju