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).

  • Publication number: 20230322106
    Abstract: 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: Application
    Filed: April 7, 2022
    Publication date: October 12, 2023
    Inventors: Richard J. Lopez, Srinivasa Rao Vaddiraju
  • Publication number: 20230322049
    Abstract: 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: Application
    Filed: April 6, 2022
    Publication date: October 12, 2023
    Inventors: Jacob Wright, Srinivasa Rao Vaddiraju, David O'Rourke
  • Patent number: 11731532
    Abstract: 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: Grant
    Filed: January 6, 2021
    Date of Patent: August 22, 2023
    Assignee: GM Global Technology Operations LLC
    Inventor: Srinivasa Rao Vaddiraju
  • Patent number: 11654786
    Abstract: 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: Grant
    Filed: October 19, 2020
    Date of Patent: May 23, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Taeyoung Han, Chih-hung Yen, Kuo-huey Chen, Bahram Khalighi, Vicente Domenech-Llopis, Srinivasa Rao Vaddiraju, Satish P. Ketkar
  • Publication number: 20230142706
    Abstract: 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: Application
    Filed: November 9, 2021
    Publication date: May 11, 2023
    Inventors: Srinivasa Rao Vaddiraju, Jeffrey A. Bozeman
  • Publication number: 20230147794
    Abstract: 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: Application
    Filed: November 9, 2021
    Publication date: May 11, 2023
    Inventors: Srinivasa Rao Vaddiraju, Jeffrey A. Bozeman
  • Publication number: 20230046910
    Abstract: 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: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Neeraj S. Shidore, Srinivasa Rao Vaddiraju, Satish P. Ketkar, Norman K. Bucknor, Madhusudan Raghavan
  • Publication number: 20220212566
    Abstract: 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: Application
    Filed: January 6, 2021
    Publication date: July 7, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Srinivasa Rao Vaddiraju
  • Patent number: 11338749
    Abstract: 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: Grant
    Filed: September 3, 2020
    Date of Patent: May 24, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jacob Wright, Changyoung Heo, Vinayshankar L. Virupaksha, Trevor T. Winch, Donald M. Jamison, Srinivasa Rao Vaddiraju, Amlanjyoti Barman
  • Publication number: 20220118866
    Abstract: 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: Application
    Filed: October 19, 2020
    Publication date: April 21, 2022
    Inventors: Taeyoung Han, Chih-hung Yen, Kuo-huey Chen, Bahram Khalighi, Vicente Domenech-Llopis, Srinivasa Rao Vaddiraju, Satish P. Ketkar
  • Publication number: 20220063529
    Abstract: 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: Application
    Filed: September 3, 2020
    Publication date: March 3, 2022
    Inventors: Jacob Wright, Changyoung Heo, Vinayshankar L. Virupaksha, Trevor T. Winch, Donald M. Jamison, Srinivasa Rao Vaddiraju, Amlanjyoti Barman
  • Patent number: 11207973
    Abstract: 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: Grant
    Filed: October 13, 2020
    Date of Patent: December 28, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Srinivasa Rao Vaddiraju, Nicholas J. Christoff
  • Publication number: 20210155074
    Abstract: 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: Application
    Filed: November 22, 2019
    Publication date: May 27, 2021
    Inventors: Srinivasa Rao Vaddiraju, Christopher M. Frizza, Todd C. Marhenke
  • Patent number: 10634025
    Abstract: 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: Grant
    Filed: May 5, 2017
    Date of Patent: April 28, 2020
    Assignee: Corning Incorporated
    Inventors: Thomas Richard Chapman, John Paul Bir Singh, Amber Leigh Tremper, Srinivasa Rao Vaddiraju, Kevin Lee Wasson
  • Patent number: 10358372
    Abstract: 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: Grant
    Filed: September 30, 2014
    Date of Patent: July 23, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Irene Mona Peterson, Olus Naili Boratav, Glen Bennett Cook, Joseph Michael Matusick, David John McEnroe, Srinivasa Rao Vaddiraju
  • Patent number: 9803523
    Abstract: 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: Grant
    Filed: October 15, 2014
    Date of Patent: October 31, 2017
    Assignee: Corning Incorporated
    Inventors: Ralph Henry Hagg, Parasuram Padmanabhan Harihara, John Paul Bir Singh, Srinivasa Rao Vaddiraju
  • Patent number: 9770973
    Abstract: 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: Grant
    Filed: July 18, 2016
    Date of Patent: September 26, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Srinivasa Rao Vaddiraju
  • Publication number: 20170233298
    Abstract: 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: Application
    Filed: May 5, 2017
    Publication date: August 17, 2017
    Inventors: Thomas Richard Chapman, John Paul Bir Singh, Amber Leigh Tremper, Srinivasa Rao Vaddiraju, Kevin Lee Wasson
  • Patent number: 9670809
    Abstract: 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: Grant
    Filed: November 19, 2013
    Date of Patent: June 6, 2017
    Assignee: Corning Incorporated
    Inventors: Thomas Richard Chapman, John Paul Bir Singh, Amber Leigh Tremper, Srinivasa Rao Vaddiraju, Kevin Lee Wasson
  • Publication number: 20160229729
    Abstract: 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: Application
    Filed: September 30, 2014
    Publication date: August 11, 2016
    Inventors: Irene Mona Peterson, Olus Naili Boratav, Glen Bennett Cook, Joseph Michael Matusick, David John McEnroe, Srinivasa Rao Vaddiraju