Patents by Inventor Debabrata Pal

Debabrata Pal 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).

  • MOTOR DRIVEN COOLED COMPRESSOR SYSTEM
    Publication number: 20180111676
    Abstract: A cooled compressor system is provided including: a compressor that in operation compresses air; an electric motor that in operation drives the compressor, the electric motor having a back iron, a motor stator radially inward from the back iron, and a motor rotor radially inward from the motor stator; an airflow system fluidly connected to the compressor, the airflow system in operation directs air through the back iron and in between the motor stator and motor rotor; an airflow inlet that in operation allows an inflow of air to the airflow system; and an airflow outlet that in operation allows an outflow of air from the airflow system; wherein the air travels from the airflow inlet to the airflow outlet through the compressor and the airflow system.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 26, 2018
    Inventor: Debabrata Pal
  • THREE-DIMENSIONAL POWER DISTRIBUTION INTERCONNECT STRUCTURE
    Publication number: 20180083425
    Abstract: An electrical power distribution system for a mobile platform, and a method for making such, includes a forming a substrate having a first panel connected to a second panel. The first panel resides in a first plane that differs from a second plan in which the second panel resides. One or more bus bars are arranged on the first panel, with one or more power electronic devices arranged on the first panel and connected to the one or more bus bars. One or more connectors are arranged on the second panel and electrically connected to the one or more bus bars. Finally, one or more thermal relief devices are arranged in contact with the substrate.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 22, 2018
    Inventors: Debabrata Pal, Michael Krenz, John Horowy, Eric Karlen
  • Mounting arrangements for electrical contactors
    Patent number: 9918406
    Abstract: A mounting arrangement for an electrical contactor includes a panel and a post. The post has a first end and a second end protruding from the panel. The first end of the post is arranged to electrically communicate with an electrical contactor. The second end of the post is arranged to connect to an electrical bus bar. A cold plate overlays the panel, extends about the post, and is in thermal communication with the post to transfer heat between the cold plate and post.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: March 13, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • RAM AIR FAN AND POWER ELECTRONICS COOLING SYSTEMS
    Publication number: 20180070474
    Abstract: A power electronics cooling system includes a ram air fan with one or more blades and a ram air fan motor connected via an output shaft. The ram air fan draws in air and passes it across a heat exchanger to cool one or more cooling liquids. One or more pumps pressurize and pump the cooling liquids to various electronic components, including one or more motor controllers. The pumps may be mechanically or electrically coupled to the output shaft of the ram air fan, such that the motor of the ram air fan provides energy to the pumps.
    Type: Application
    Filed: October 30, 2017
    Publication date: March 8, 2018
    Applicant: HAMILTON SUNSTRAND CORPORATION
    Inventor: DEBABRATA PAL
  • Motor stator cooling with dual coolant two-phase heat exchanger
    Patent number: 9903666
    Abstract: A mist cooling system that includes a casing and a liquid inlet. The casing is configured to receive a liquid flow from a source through the liquid inlet and then provide the liquid flow as a mist to a housing of a motor so as to increase a cooling of the motor and prevent any failure of the motor due to overheating.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: February 27, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Debabrata Pal, Craig R. Legros
  • Flexible laminated thermocouple
    Patent number: 9891114
    Abstract: A flexible laminated thermocouple is provided and includes layers of insulation material. At least one of the layers has a longitudinal axis and includes thermocouple conductors formed of differing electrically conductive materials. Each of the thermocouple conductors includes a main section extending along the longitudinal axis and a flange extending transversely to the longitudinal axis. The main sections are insulated from one another and the thermocouple conductors are insulated from thermocouple conductors of another layer.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 13, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Eric Karlen, John Horowy, William Louis Wentland, Debabrata Pal
  • AIRCRAFT ELECTRONICS THERMAL REGULATION SYSTEMS
    Publication number: 20180038657
    Abstract: An electronics cooling system for an aircraft includes a heat exchanger comprising a coolant circuit, an air circuit, and a fuel circuit such that each of the circuits is in thermal communication with at least one of the other circuits. The coolant circuit is in thermal communication with one or more aircraft electronics. The air circuit is in fluid communication with at least one air source. The fuel circuit is in fluid communication with a fuel tank between the fuel tank and an engine of the aircraft.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 8, 2018
    Inventor: Debabrata Pal
  • Power distribution panel connector having thermal management feature
    Patent number: 9882357
    Abstract: An aircraft power distribution system according to an exemplary aspect of the present disclosure includes, among other things, a power source, a load, and a power distribution panel receiving power from the power source and selectively providing power to the load. The power source is connected to the power panel by a lug having a heat sink portion. The heat sink portion has at least one increased dimension relative to the remainder of the lug.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: January 30, 2018
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Debabrata Pal
  • MOUNTING ARRANGEMENTS FOR ELECTRICAL CONTACTORS
    Publication number: 20180020574
    Abstract: A mounting arrangement for an electrical contactor includes a panel and a post. The post has a first end and a second end protruding from the panel. The first end of the post is arranged to electrically communicate with an electrical contactor. The second end of the post is arranged to connect to an electrical bus bar. A cold plate overlays the panel, extends about the post, and is in thermal communication with the post to transfer heat between the cold plate and post.
    Type: Application
    Filed: July 12, 2016
    Publication date: January 18, 2018
    Inventor: Debabrata Pal
  • Electrical machine with reduced windage
    Patent number: 9871426
    Abstract: A rotating machine has a shaft rotatable about an axis, a rotor rotatable with the shaft, and a rotor end winding at an axial end of the rotor. A stator is spaced from the rotor and forms a gap therebetween. The stator comprises a stator winding. A fluid system directs fluid through to the stator. A baffle to diverts fluid away from the gap and toward the stator.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: January 16, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • ELECTRICAL CONTACTOR AND PANEL ASSEMBLIES
    Publication number: 20180009399
    Abstract: An electrical contactor assembly includes an electrical contactor, a post in electrical communication with the electrical contactor, an insulator body, and a heat sink. The insulator body is in intimate mechanical contact with the post. The heat sink is in intimate mechanical contact with the insulator body and is in thermal communication with the electrical contactor through the post and the insulator body such that heat flowing between contactor and the heat sink flows through the post and the insulator body.
    Type: Application
    Filed: July 11, 2016
    Publication date: January 11, 2018
    Inventor: Debabrata Pal
  • ELECTRICAL MACHINE WITH REDUCED WINDAGE
    Publication number: 20180006533
    Abstract: A rotating machine has a shaft rotatable about an axis, a rotor rotatable with the shaft, and a rotor end winding at an axial end of the rotor. A stator is spaced from the rotor and forms a gap therebetween. The stator comprises a stator winding. A fluid system directs fluid through to the stator. A baffle to diverts fluid away from the gap and toward the stator.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 4, 2018
    Inventor: Debabrata Pal
  • CONTACTOR IN POWER DISTRIBUTION ASSEMBLY
    Publication number: 20180006413
    Abstract: An electrical contactor assembly includes an electrical contactor having an electrical lead having a contactor pin extending therefrom, an electrical bus bar, and at least one post extending between the electrical contactor and the electrical bus bar. The post is constructed from an electrically and thermally conductive material. The post includes an opening for receiving the contactor pin and the opening includes a contactor-foil material disposed in contact with the pin.
    Type: Application
    Filed: June 29, 2016
    Publication date: January 4, 2018
    Inventor: Debabrata Pal
  • Electrical contactor and panel assemblies
    Patent number: 9855903
    Abstract: An electrical contactor assembly includes an electrical contactor, a post in electrical communication with the electrical contactor, an insulator body, and a heat sink. The insulator body is in intimate mechanical contact with the post. The heat sink is in intimate mechanical contact with the insulator body and is in thermal communication with the electrical contactor through the post and the insulator body such that heat flowing between contactor and the heat sink flows through the post and the insulator body.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: January 2, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • Controller cooling arrangement
    Patent number: 9850817
    Abstract: A controller according to an exemplary aspect of the present disclosure includes, among other things, a cold plate and at least one electronic component mounted to the cold plate by an intermediate thermoelectric cooler.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: December 26, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Debabrata Pal
  • Ram air fan and power electronics cooling systems
    Patent number: 9832910
    Abstract: A power electronics cooling system includes a ram air fan with one or more blades and a ram air fan motor connected via an output shaft. The ram air fan draws in air and passes it across a heat exchanger to cool one or more cooling liquids. One or more pumps pressurize and pump the cooling liquids to various electronic components, including one or more motor controllers. The pumps may be mechanically or electrically coupled to the output shaft of the ram air fan, such that the motor of the ram air fan provides energy to the pumps.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: November 28, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Debabrata Pal
  • Three-dimensional power distribution interconnect structure
    Patent number: 9825437
    Abstract: An electrical power distribution system for a mobile platform, and a method for making such, includes a forming a substrate having a first panel connected to a second panel. The first panel resides in a first plane that differs from a second plan in which the second panel resides. One or more bus bars are arranged on the first panel, with one or more power electronic devices arranged on the first panel and connected to the one or more bus bars. One or more connectors are arranged on the second panel and electrically connected to the one or more bus bars. Finally, one or more thermal relief devices are arranged in contact with the substrate.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 21, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Debabrata Pal, Michael Krenz, John Horowy, Eric Karlen
  • End winding support and heat sink for liquid-cooled generator
    Patent number: 9819239
    Abstract: Embodiments of an end winding support and heat sink for a pole of a generator are provided. An aspect includes a flat plate portion, the flat plate portion comprising an internal cooling liquid channel that routes coolant through the flat plate portion. Another aspect includes a plurality of fins extending out from the flat plate portion, wherein wires of the windings of the generator are supported by the plurality of fins.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: November 14, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Debabrata Pal, Joshua J. Krecklow
  • ELECTRICAL INTERCONNECT ARRANGEMENTS
    Publication number: 20170310064
    Abstract: An electrical interconnect arrangement for coupling a contactor with a bus bar includes a post, a bus bar connected electrically to the post, and a joint coupling the bus bar to the post. The joint has two or more interfaces defined between the post and the bus bar to reduce resistive heat generation within the electrical interconnect arrangement.
    Type: Application
    Filed: April 21, 2016
    Publication date: October 26, 2017
    Inventor: Debabrata Pal
  • Method and assembly for cooling an electric machine
    Patent number: 9793767
    Abstract: In one exemplary embodiment, an electric machine includes a stator having a plurality of axial protrusions forming a plurality of stator cooling channels on a radially outer surface of the stator and a tapered portion located adjacent a distal end of at least one of the plurality of protrusions. Additionally, the disclosure includes a method for cooling the electric machine.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: October 17, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Mark Hamilton Severson, Debabrata Pal, Joseph Kenneth Coldwate