Patents by Inventor Piyush Desai

Piyush Desai 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: 20240073110
    Abstract: System and computer-implemented method for generating multi-cloud recommendations for workloads uses costs and performance metrics of appropriate instance types in specific public clouds for target workloads to produce recommendation results. The appropriate instance types in the specific public clouds are determined based on instance capabilities and the workload type of the target workloads. In addition, a recommended cloud resource offering is determined for the target workloads, which is sent as a notification with the recommendation results of the appropriate instance types in the specific public clouds.
    Type: Application
    Filed: December 1, 2022
    Publication date: February 29, 2024
    Inventors: AMITA VASUDEV KAMAT, Piyush Hasmukh Parmar, Aalap Desai
  • Patent number: 11784599
    Abstract: An SR drive with an acoustic noise reduction system for reducing vibration and acoustic noise in a switched reluctance motor (SRM). The vibration and acoustic noise at specific harmonics of current excitation in SRM are in a proportional relationship with the radial force harmonics acting at SRM stator teeth. The acoustic noise reduction system includes a processor on which is installed an acoustic noise reduction application designed to derive an optimum current waveform for generating an average torque satisfying an optimum torque condition and creating radial force with minimum amplitude at the desired order of harmonics of current excitation. A reduction in the amplitude of the specific radial force harmonics utilizing the optimum current waveform minimizes the vibration and acoustic noise in the SRM. The acoustic noise reduction system applies turn-on and turn-off angles at the optimum current waveform to improve the system efficiency.
    Type: Grant
    Filed: February 6, 2022
    Date of Patent: October 10, 2023
    Assignees: Tokyo Institute of Technology, Turntide Technologies Inc.
    Inventors: Akira Chiba, Candra Adi Wiguna, Jihad Furqani, Piyush Desai
  • Publication number: 20230253904
    Abstract: An SR drive with an acoustic noise reduction system for reducing vibration and acoustic noise in a switched reluctance motor (SRM). The vibration and acoustic noise at specific harmonics of current excitation in SRM are in a proportional relationship with the radial force harmonics acting at SRM stator teeth. The acoustic noise reduction system includes a processor on which is installed an acoustic noise reduction application designed to derive an optimum current waveform for generating an average torque satisfying an optimum torque condition and creating radial force with minimum amplitude at the desired order of harmonics of current excitation. A reduction in the amplitude of the specific radial force harmonics utilizing the optimum current waveform minimizes the vibration and acoustic noise in the SRM. The acoustic noise reduction system applies turn-on and turn-off angles at the optimum current waveform to improve the system efficiency.
    Type: Application
    Filed: February 6, 2022
    Publication date: August 10, 2023
    Inventors: Akira Chiba, Candra Adi Wiguna, Jihad Furqani, Piyush Desai
  • Patent number: 11682995
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: June 20, 2023
    Assignee: Turntide Technologies, Inc.
    Inventors: Mahesh Krishnamurthy, Trevor Creary, Piyush Desai, Mark Johnston
  • Publication number: 20230107792
    Abstract: A switched reluctance machine comprising at least one rotor comprising a set of rotor poles arranged about a central axis, at least one stator positioned concentric to and radially outward from the central axis and the rotor, the stator having an outer surface and an outer surface active zone; a housing having a sleeve positioned only radially outward from the stator outer surface active zone; at least one housing endplate coupled to an end of said housing; wherein said stator has no direct connection to said housing, and wherein the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases.
    Type: Application
    Filed: December 11, 2022
    Publication date: April 6, 2023
    Inventors: Piyush Desai, Tim Knodel, Bryan Knodel, Earl Fairall, Mark Johnston, Mahesh Krishnamurthy
  • Patent number: 11532976
    Abstract: A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis; at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator having an outer surface and an outer surface active zone; a housing having a sleeve positioned only radially outward from the stator outer surface active zone; at least one housing endplate coupled to an end of said housing; and wherein said stator has no direct connection to said housing.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 20, 2022
    Inventors: Piyush Desai, Tim Knodel, Bryan Knodel, Earl Fairall
  • Publication number: 20220190766
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Inventors: MAHESH KRISHNAMURTHY, TREVOR CREARY, PIYUSH DESAI, MARK JOHNSTON
  • Patent number: 11277061
    Abstract: A high rotor pole switched reluctance machine (HRSRM) employs an axial and radial mirroring concept and is represented by a first Multiple Rotor Pole (MRP) formula and second Multiple Stator Pole (MSP) formula. A multiple rotor HRSRM comprises at least two rotors each having a plurality of rotor poles and at least two stators having a plurality of stator poles. The at least two rotors and the at least two stators are positioned about a central axis with the stator placed between the rotors. In other embodiments, the number of stators equals the number of rotors and effectively operate as a single stator and rotor. In yet another embodiment, the effective single stator and rotor type high rotor pole switched reluctance machine is realized as single stator and rotor positioned concentrically around a central axis.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: March 15, 2022
    Assignee: Turntide Technologies, Inc.
    Inventors: Mahesh Krishnamurthy, Mark Johnston, Trevor Creary, Piyush Desai
  • Patent number: 11271509
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Grant
    Filed: July 5, 2020
    Date of Patent: March 8, 2022
    Assignee: Turntide Technologies Inc.
    Inventors: Mahesh Krishnamurthy, Trevor Creary, Piyush Desai, Mark Johnston
  • Patent number: 10942642
    Abstract: Examples described herein include improved systems and methods for performing erasures and edits within a graphical user interface. A computing device can include a processor that detects skin contact with a touch-screen display of the computing device. The processor can also detect, based on the skin contact, a gesture that indicates an erasure function. Based on that determination, the processor executes the erasure function.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: March 9, 2021
    Assignee: AirWatch LLC
    Inventor: Alok Piyush Desai
  • Publication number: 20200366178
    Abstract: A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis; at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator having an outer surface and an outer surface active zone; a housing having a sleeve positioned only radially outward from the stator outer surface active zone; at least one housing endplate coupled to an end of said housing; and wherein said stator has no direct connection to said housing.
    Type: Application
    Filed: April 16, 2019
    Publication date: November 19, 2020
    Applicant: Software Motor Company
    Inventors: Piyush DESAI, Tim KNODEL, Bryan KNODEL, Earl FAIRALL
  • Publication number: 20200366231
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Application
    Filed: July 5, 2020
    Publication date: November 19, 2020
    Inventors: Mahesh KRISHNAMURTHY, Trevor CREARY, Piyush DESAI, Mark JOHNSTON
  • Publication number: 20200220440
    Abstract: A high rotor pole switched reluctance machine (HRSRM) employs an axial and radial mirroring concept and is represented by a first Multiple Rotor Pole (MRP) formula and second Multiple Stator Pole (MSP) formula. A multiple rotor HRSRM comprises at least two rotors each having a plurality of rotor poles and at least two stators having a plurality of stator poles. The at least two rotors and the at least two stators are positioned about a central axis with the stator placed between the rotors. In other embodiments, the number of stators equals the number of rotors and effectively operate as a single stator and rotor. In yet another embodiment, the effective single stator and rotor type high rotor pole switched reluctance machine is realized as single stator and rotor positioned concentrically around a central axis.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Inventors: Mahesh Krishnamurthy, Mark Johnston, Trevor Creary, Piyush Desai
  • Patent number: 10707798
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 7, 2020
    Assignee: Software Motor Company
    Inventors: Mahesh Krishnamurthy, Trevor Creary, Piyush Desai, Mark Johnston
  • Publication number: 20200177042
    Abstract: The present invention is a method for producing a plurality of curved stator windings by shaping a plurality of stator coils for a switched reluctance machine (SRM). The present invention proposes apparatus and methods for utilizing a plurality of curved stator windings with two main embodiments: a symmetrical winding and an asymmetrical winding, whereby the plurality of curved stator windings are highly conforming to a curved stator shape. The plurality of curved stator windings provides higher efficiency and lower noise to the SRM. The plurality of curved stator windings conforms to the stator curved shape, maximizing the copper fill factor, thereby permitting maximum copper utilization in the machine.
    Type: Application
    Filed: October 14, 2019
    Publication date: June 4, 2020
    Inventors: Piyush Desai, Edgar Hu, Mark Johnston
  • Patent number: 10658910
    Abstract: A high rotor pole switched reluctance machine (HRSRM) employs an axial and radial mirroring concept and is represented by a first Multiple Rotor Pole (MRP) formula and second Multiple Stator Pole (MSP) formula. A multiple rotor HRSRM comprises at least two rotors each having a plurality of rotor poles and at least two stators having a plurality of stator poles. The at least two rotors and the at least two stators are positioned about a central axis with the stator placed between the rotors. In other embodiments, the number of stators equals the number of rotors and effectively operate as a single stator and rotor. In yet another embodiment, the effective single stator and rotor type high rotor pole switched reluctance machine is realized as single stator and rotor positioned concentrically around a central axis.
    Type: Grant
    Filed: March 4, 2018
    Date of Patent: May 19, 2020
    Assignee: Software Motor Company
    Inventors: Mahesh Krishnamurthy, Mark Johnston, Trevor Creary, Piyush Desai
  • Publication number: 20200144950
    Abstract: The present embodiment is a high rotor pole switched reluctance machine (HRSRM) which provides a plurality of combinations of the number of rotor poles Rn and number of stator poles Sn utilizing a numerical relationship defined by a mathematical formula, Rn=2Sn?Fp, when Sn=m×Fp, wherein Fp is the maximum number of independent flux paths in the stator when stator and rotor poles are fully aligned, and m is the number of phases. The mathematical formulation provides an improved noise performance and design flexibility to the machine. The mathematical formulation further provides a specific number of stator and rotor poles for a chosen m and Fp. The HRSRM can be designed with varying number of phases. The HRSRM provides a smoother torque profile due to a high number of strokes per revolution.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 7, 2020
    Inventors: MAHESH KRISHNAMURTHY, TREVOR CREARY, PIYUSH DESAI, MARK JOHNSTON
  • Patent number: 10461617
    Abstract: A high rotor pole switched reluctance machine (HRSRM) employs an axial and radial mirroring concept and is represented by a first Multiple Rotor Pole (MRP) formula and second Multiple Stator Pole (MSP) formula. A multiple rotor HRSRM comprises at least two rotors each having a plurality of rotor poles and at least two stators having a plurality of stator poles. The at least two rotors and the at least two stators are positioned about a central axis with the stator placed between the rotors. In other embodiments, the number of stators equals the number of rotors and effectively operate as a single stator and rotor. In yet another embodiment, the effective single stator and rotor type high rotor pole switched reluctance machine is realized as single stator and rotor positioned concentrically around a central axis.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 29, 2019
    Assignee: Software Motor Company
    Inventors: Mahesh Krishnamurthy, Mark Johnston, Trevor Creary, Piyush Desai
  • Publication number: 20180301967
    Abstract: A high rotor pole switched reluctance machine (HRSRM) employs an axial and radial mirroring concept and is represented by a first Multiple Rotor Pole (MRP) formula and second Multiple Stator Pole (MSP) formula. A multiple rotor HRSRM comprises at least two rotors each having a plurality of rotor poles and at least two stators having a plurality of stator poles. The at least two rotors and the at least two stators are positioned about a central axis with the stator placed between the rotors. In other embodiments, the number of stators equals the number of rotors and effectively operate as a single stator and rotor. In yet another embodiment, the effective single stator and rotor type high rotor pole switched reluctance machine is realized as single stator and rotor positioned concentrically around a central axis.
    Type: Application
    Filed: June 18, 2018
    Publication date: October 18, 2018
    Inventors: Mahesh Krishnamurthy, Mark Johnston, Trevor Creary, Piyush Desai
  • Publication number: 20180191230
    Abstract: A high rotor pole switched reluctance machine (HRSRM) employs an axial and radial mirroring concept and is represented by a first Multiple Rotor Pole (MRP) formula and second Multiple Stator Pole (MSP) formula. A multiple rotor HRSRM comprises at least two rotors each having a plurality of rotor poles and at least two stators having a plurality of stator poles. The at least two rotors and the at least two stators are positioned about a central axis with the stator placed between the rotors. In other embodiments, the number of stators equals the number of rotors and effectively operate as a single stator and rotor. In yet another embodiment, the effective single stator and rotor type high rotor pole switched reluctance machine is realized as single stator and rotor positioned concentrically around a central axis.
    Type: Application
    Filed: March 4, 2018
    Publication date: July 5, 2018
    Inventors: Mahesh Krishnamurthy, Mark Johnston, Trevor Creary, Piyush Desai