Patents by Inventor Lokanath Mohanta

Lokanath Mohanta 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).

  • Patent number: 11988421
    Abstract: A heat exchanger comprising a pair of metal plates joined along corresponding mating surfaces, wherein at least one of the metal plates comprises a plurality of connected recesses which form a fluid circuit between the plates when the plates are joined, wherein the fluid circuit comprises an inlet, an inlet manifold, an outlet, an outlet manifold, and a plurality of flowpaths extending between and fluidly connecting the inlet manifold and outlet manifold, and wherein one or more of the plurality of flowpaths comprise a fluid passage and a flow constriction and wherein a ratio of the hydraulic diameter of the flow constriction to the hydraulic diameter of the fluid passage increases with increasing distance from the inlet.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: May 21, 2024
    Assignee: CARRIER CORPORATION
    Inventors: Lokanath Mohanta, Arindom Joardar, Konstantin Borisov, Ismail Agirman
  • Patent number: 11852422
    Abstract: Disclosed is a double wave fin plate for a fin-tube heat exchanger, having: one half-plate having one perimeter edge with one cut-out forming one portion of a tube connector; another half-plate having another perimeter edge with another cut-out forming another portion of the tube connector; the one perimeter edge and the other perimeter edge are connected to one another about each cut-out to form the fin plate and the tube connector; one surface waveform is formed on the one half-plate; another surface waveform is formed on the other half-plate, and the one surface waveform is disposed at an angle to the other surface waveform in the fin plate.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 26, 2023
    Assignee: CARRIER CORPORATION
    Inventors: Lokanath Mohanta, Arindom Joarder, Jack Leon Esformes
  • Patent number: 11788779
    Abstract: A mixing device and a vapor compression system incorporating a mixing device are provided. The vapor compression system includes a suction line, at least two compressors, and at least one mixing device that is predominantly open (e.g., i.e., include at least a certain percentage, such as seventy percent (70%), of voids/openings). The suction line is used for transferring a working fluid made up of a mixture of a refrigerant and an oil. The suction line includes at least one inlet (e.g., for receiving the working fluid) and at least one outlet (e.g., for distributing the working fluid). The vapor compression system include a first compressor fluidly connected to a first outlet and a second compressor fluidly connected to a second outlet. At least one mixing device is disposed within the suction line (e.g., to increase an internal turbulence of the working fluid).
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: October 17, 2023
    Assignee: Carrier Corporation
    Inventors: Lokanath Mohanta, Arindom Joardar, Nicolas Fonte
  • Publication number: 20230301042
    Abstract: A power electronics assembly includes one or more power electronics devices, and a heat exchanger to which the one or more power electronics devices are mounted. The heat exchanger includes a heat exchanger body, and one or more fluid pathways extending through the heat exchanger body, the heat exchanger configured to transfer thermal energy from the one or more power electronics devices into a flow of fluid passing through the one or more fluid pathways. A plurality of fins extend from an outer surface of the heat exchanger body. The flow of fluid is a flow of liquid refrigerant diverted from a condenser of a heating, ventilation, and air conditioning (HVAC) system.
    Type: Application
    Filed: November 2, 2022
    Publication date: September 21, 2023
    Inventors: Arindom Joardar, Lokanath Mohanta, Konstantin Borisov, Ismail Agirman
  • Publication number: 20230296329
    Abstract: A heat exchanger includes a plurality of plate fins. At least one plate fin has a plurality of holes arranged in one or more rows and a contoured region formed adjacent one of the plurality of holes having a sinusoidal corrugation. The contoured region includes a plurality of elongate adjustable lance elements. The plurality of elongate adjustable lance elements are lowered relative to a central plane arranged at a midpoint of an amplitude of the sinusoidal corrugation.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Inventors: Arindom Joardar, Lokanath Mohanta, Mustafa Koz, Fatemeh Hejripour Rafsanjani
  • Publication number: 20230292464
    Abstract: A method of forming a power electronics assembly includes forming a plurality of pathway openings in a heat exchanger body and inserting a tubular member in each pathway opening of the plurality of pathway openings. The tubular member includes a plurality of internal surface enhancements. An interference fit is defined between the tubular members and the heat exchanger body via one or more of mechanical or thermal expansion to define a plurality of fluid pathways in the heat exchanger. One or more power electronics devices are installed to the heat exchanger body.
    Type: Application
    Filed: November 2, 2022
    Publication date: September 14, 2023
    Inventors: Arindom Joardar, Lokanath Mohanta, Konstantin Borisov, Ismail Agirman
  • Publication number: 20230138320
    Abstract: A heat exchanger assembly includes a housing having at least one area of heat flux and a fluid circuit arranged within an interior of the housing. The fluid circuit having an inlet manifold, an outlet manifold, and at least one fluid passage connecting the inlet manifold and the outlet manifold. The at least one fluid passage is positioned relative to the housing to perform localized cooling of the housing at the at least one area of heat flux. A cooling medium circulates through the fluid circuit.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 4, 2023
    Inventors: Konstantin Borisov, Lokanath Mohanta, Arindom Joardar, Ismail Agirman
  • Publication number: 20230126158
    Abstract: A power electronics assembly includes one or more power electronics devices, and a heat exchanger to which the one or more power electronics devices are mounted. The heat exchanger includes an inlet manifold and an outlet manifold, and one or more fluid pathways extending connecting the inlet manifold and the outlet manifold, the heat exchanger configured to transfer thermal energy from the one or more power electronics devices into a flow of fluid passing through the one or more fluid pathways. Thee one or more fluid pathways include one or more internal enhancements and channel configurations to enhance thermal energy transfer by promoting boiling of the flow of fluid and to reduce the pressure drop in the pathways under a two-phase flow condition. The flow of fluid is a flow of liquid refrigerant diverted from a condenser of a heating, ventilation, and air conditioning (HVAC) system.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Inventors: Lokanath Mohanta, Arindom Joardar, Srikanth Honavara Prasad, Konstantin Borisov, Ismail Agirman
  • Publication number: 20230128951
    Abstract: A power electronics assembly includes one or more power electronics devices, and a heat exchanger to which the one or more power electronics devices are mounted. The heat exchanger includes one or more fluid pathways extending through the heat exchanger to transfer thermal energy from the one or more power electronics devices into a flow of fluid passing through the one or more fluid pathways. The flow of fluid is a flow of liquid refrigerant diverted from a condenser of a heating, ventilation, and air conditioning (HVAC) system. The one or more power electronics devices includes at least one power electronics device located on each opposing lateral side of the heat exchanger.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Inventors: Arindom Joardar, Lokanath Mohanta, Konstantin Borisov, Ismail Agirman
  • Publication number: 20220373236
    Abstract: A heat exchanger comprising a pair of metal plates joined along corresponding mating surfaces, wherein at least one of the metal plates comprises a plurality of connected recesses which form a fluid circuit between the plates when the plates are joined, wherein the fluid circuit comprises an inlet, an inlet manifold, an outlet, an outlet manifold, and a plurality of flowpaths extending between and fluidly connecting the inlet manifold and outlet manifold, and wherein one or more of the plurality of flowpaths comprise a fluid passage and a flow constriction and wherein a ratio of the hydraulic diameter of the flow constriction to the hydraulic diameter of the fluid passage increases with increasing distance from the inlet.
    Type: Application
    Filed: May 13, 2022
    Publication date: November 24, 2022
    Inventors: Lokanath Mohanta, Arindom Joardar, Konstantin Borisov, Ismail Agirman
  • Publication number: 20220307774
    Abstract: Disclosed is a double wave fin plate for a fin-tube heat exchanger, having: one half-plate having one perimeter edge with one cut-out forming one portion of a tube connector; another half-plate having another perimeter edge with another cut-out forming another portion of the tube connector; the one perimeter edge and the other perimeter edge are connected to one another about each cut-out to form the fin plate and the tube connector; one surface waveform is formed on the one half-plate; another surface waveform is formed on the other half-plate, and the one surface waveform is disposed at an angle to the other surface waveform in the fin plate.
    Type: Application
    Filed: September 4, 2020
    Publication date: September 29, 2022
    Inventors: Lokanath Mohanta, Arindom Joarder, Jack Leon Esformes
  • Publication number: 20220146214
    Abstract: A finned tube (e.g., for use in a flooded and falling film evaporator) is provided. The finned tube includes a tube body with an interior surface and an exterior surface. The finned tube may include a plurality of adjacent helical fins (e.g., continuously or intermittently) protruding circumferentially around the exterior surface of the tube body. At least one channel is disposed between the plurality of adjacent helical fins. Each respective helical fin includes at least one sidewall and a fin top. Each channel includes at least one channel enhancement impressed radially into and transversely through at intervals around the circumference of the exterior surface of the tube body. The finned tube may also include at least one top enhancement and/or sidewall enhancement impressed radially into and transversely through at intervals around the circumference of the exterior surface of the tube body.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 12, 2022
    Inventors: Lokanath Mohanta, Wei Zhang
  • Publication number: 20220099341
    Abstract: A mixing device and a vapor compression system incorporating a mixing device are provided. The vapor compression system includes a suction line, at least two compressors, and at least one mixing device that is predominantly open (e.g., i.e., include at least a certain percentage, such as seventy percent (70%), of voids/openings). The suction line is used for transferring a working fluid made up of a mixture of a refrigerant and an oil. The suction line includes at least one inlet (e.g., for receiving the working fluid) and at least one outlet (e.g., for distributing the working fluid). The vapor compression system include a first compressor fluidly connected to a first outlet and a second compressor fluidly connected to a second outlet. At least one mixing device is disposed within the suction line (e.g., to increase an internal turbulence of the working fluid).
    Type: Application
    Filed: September 13, 2021
    Publication date: March 31, 2022
    Inventors: Lokanath Mohanta, Arindom Joardar, Nicolas Fonte