Patents by Inventor Suman Dwari
Suman Dwari 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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Patent number: 11946837Abstract: A detection system includes a central manifold including a detection chamber, a pipe network including at least one pipe fluidly coupled to the central manifold, a plurality of inlets formed over a length of the at least one pipe and an aspirating mechanism operable to draw a fluid flow at each of the plurality of inlets through the pipe network to the central manifold. A plurality of independently operable flow control devices is associated with the plurality of inlets. At least one of the plurality of flow control devices includes a solid state flexible polymer deformable in response to application of a voltage.Type: GrantFiled: May 15, 2019Date of Patent: April 2, 2024Assignee: CARRIER CORPORATIONInventors: Rajiv Ranjan, Suman Dwari, Peter R. Harris
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Patent number: 11874318Abstract: Systems and methods for health monitoring and fault detection in power distribution networks are provided. Aspects include providing a first power supply coupled to a power channel, providing a load coupled to the power channel, providing a transmitting sensor coupled to the power channel between the first power supply and the load, providing a receiving sensor coupled to the power channel between the transmitting sensor and the load, operating the transmitting sensor to provide an AC test signal to the power channel, the AC test signal comprises a predefined test signal pattern, operating the receiving sensor to sense, from the power channel, a continuous power signal including the AC test signal, analyzing, by the controller, the AC test signal to determine a fault of the power channel based on comparing the predefined test signal pattern with a predefined nominal probe signal pattern corresponding to a specific network configuration.Type: GrantFiled: August 27, 2021Date of Patent: January 16, 2024Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Parikshith Channegowda, Gurkan Gok, Suman Dwari
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Patent number: 11840423Abstract: A hybrid energy storage system for an elevator car includes a converter disposed on the elevator car and receives power from a power source and provides a first DC voltage to a first DC bus and a second DC voltage to a second DC bus, a first energy storage device connected to the converter receives the first DC voltage on the first DC bus, and a second energy storage device connected to the converter receives the second DC voltage on the second DC bus. The system also includes a first load connected to the first DC bus and a second DC bus, and a second load connected to the second DC bus. Power is provided from the first energy storage device to the first load under a first selected condition and power is supplied from the second energy storage device to the first load under second selected condition.Type: GrantFiled: December 13, 2019Date of Patent: December 12, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Suman Dwari, Stephen Savulak, Enrico Manes, Ronnie E. Thebeau, Xin Wu
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Patent number: 11817752Abstract: Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor that includes an axial segment, a first radial segment, and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.Type: GrantFiled: July 2, 2021Date of Patent: November 14, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Tod Policandriotes, Parag M. Kshirsagar, Suman Dwari, Beata I. Wawrzyniak, Jagadeesh Kumar Tangudu, Sreenivasa R. Voleti
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Patent number: 11770066Abstract: A power converter can include a first line, a second line, a capacitor line disposed between the first line and the second line, a first capacitor and a second capacitor connected to the capacitor line in series between the first line and the second line, a midpoint line connected to a midpoint between the first capacitor and the second capacitor, and a protection circuit disposed between the first capacitor and the second capacitor and configured to provide protection to one or more portions of the power converter.Type: GrantFiled: June 11, 2021Date of Patent: September 26, 2023Assignee: Hamilton Sundstrand CorporationInventors: Bo Liu, Yongduk Lee, Xin Wu, Suman Dwari
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Patent number: 11728738Abstract: An electrical power distribution system includes a first high side sub-module including a high side converter and a high side energy storage device. The first high side sub-module is electrically coupled to a high side load that requires a high voltage or medium voltage DC, the high voltage DC being higher than the medium voltage DC. The system also includes a first low side sub-module including a low side converter and a low side energy storage device. The first high side sub-module and the first low side sub-module are configured to be inductively coupled. The first high side sub-module and the first low side sub-module form a first module.Type: GrantFiled: May 21, 2021Date of Patent: August 15, 2023Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Baljit Singh Riar, Suman Dwari
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Patent number: 11670961Abstract: According to a wireless power transfer system for wirelessly powering a conveyance apparatus of a conveyance system including: a wireless electrical power transmitter located along a side of the conveyance system in a first location; a power management system configured to control operation of the wireless electrical power transmitter; a wireless electrical power receiver located along a surface of the conveyance apparatus opposite the side; an energy storage device configured to receive electrical power from the wireless electrical power receiver; an energy storage device management system configured to monitor data of the energy storage device and the conveyance apparatus, the energy storage device management system being in wireless communication with the power management system, wherein the energy storage device management system is configured to transmit the data to the power management system and the power management system adjusts operation of the wireless electrical power transmitter in response to thType: GrantFiled: December 9, 2019Date of Patent: June 6, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Enrico Manes, Suman Dwari, Stephen Savulak, Goran Djuknic
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Publication number: 20230062548Abstract: Systems and methods for health monitoring and fault detection in power distribution networks are provided. Aspects include providing a first power supply coupled to a power channel, providing a load coupled to the power channel, providing a transmitting sensor coupled to the power channel between the first power supply and the load, providing a receiving sensor coupled to the power channel between the transmitting sensor and the load, operating the transmitting sensor to provide an AC test signal to the power channel, the AC test signal comprises a predefined test signal pattern, operating the receiving sensor to sense, from the power channel, a continuous power signal including the AC test signal, analyzing, by the controller, the AC test signal to determine a fault of the power channel based on comparing the predefined test signal pattern with a predefined nominal probe signal pattern corresponding to a specific network configuration.Type: ApplicationFiled: August 27, 2021Publication date: March 2, 2023Inventors: Parikshith Channegowda, Gurkan Gok, Suman Dwari
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Patent number: 11532993Abstract: An apparatus for modular AC to AC frequency conversion is disclosed. An input AC source is configured to generate an input AC voltage at a first frequency. At least one primary low frequency (LF) conversion stage is configured to generate a DC voltage, and comprises a first pair of metal-oxide-semiconductor field effect transistors (MOSFETs). At least one primary high frequency (HF) conversion stage is configured to generate the DC voltage, and comprises a first pair of high electron mobility transistors (HEMTs). At least one secondary LF conversion stage is configured to receive the DC voltage and generate an output AC voltage at a second frequency, and comprises a second pair of MOSFETs. At least one secondary HF conversion stage is configured to receive the DC voltage and generate the output AC voltage at the second frequency, and comprises a second pair of HEMTs.Type: GrantFiled: October 7, 2021Date of Patent: December 20, 2022Assignee: B/E Aerospace, IncInventors: Suman Dwari, Parag M. Kshirsagar, Jeffrey Ewanchuk, Baljit Singh Riar, Brian St. Rock
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Publication number: 20220399800Abstract: A power converter can include a first line, a second line, a capacitor line disposed between the first line and the second line, a first capacitor and a second capacitor connected to the capacitor line in series between the first line and the second line, a midpoint line connected to a midpoint between the first capacitor and the second capacitor, and a protection circuit disposed between the first capacitor and the second capacitor and configured to provide protection to one or more portions of the power converter.Type: ApplicationFiled: June 11, 2021Publication date: December 15, 2022Applicant: Hamilton Sundstrand CorporationInventors: Bo Liu, Yongduk Lee, Xin Wu, Suman Dwari
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Publication number: 20220393590Abstract: A power converter includes an amplifier, an inductor, a capacitor, and an interconnection block formed of an insulating material having conductive material deposited thereon by a multi-material printing process. The interconnection block supports one of the inductor and the capacitor in a manner that the one the inductor and the capacitor is disposed vertically above an other of the inductor and the capacitor.Type: ApplicationFiled: June 4, 2021Publication date: December 8, 2022Inventors: Suman Dwari, Brian St. Rock, Jeffrey Ewanchuk
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Publication number: 20220376626Abstract: An electrical power distribution system includes a first high side sub-module including a high side converter and a high side energy storage device. The first high side sub-module is electrically coupled to a high side load that requires a high voltage or medium voltage DC, the high voltage DC being higher than the medium voltage DC. The system also includes a first low side sub-module including a low side converter and a low side energy storage device. The first high side sub-module and the first low side sub-module are configured to be inductively coupled. The first high side sub-module and the first low side sub-module form a first module.Type: ApplicationFiled: May 21, 2021Publication date: November 24, 2022Inventors: Baljit Singh Riar, Suman Dwari
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Publication number: 20220320981Abstract: Provided are embodiments for a method and a hybrid axial/radial motor. Embodiments can include a central rotor that includes an axial segment, a first radial segment, and a second radial segment, wherein the first radial segment extends axially from a first side of the axial segment and the second radial segment extends axially from a second side of the axial segment, wherein the first side is opposite the second side. Embodiments can also include a stator adapted to receive the first radial segment or the second radial segment of the central rotor.Type: ApplicationFiled: July 2, 2021Publication date: October 6, 2022Inventors: Tod Policandriotes, Parag M. Kshirsagar, Suman Dwari, Beata I. Wawrzyniak, Jagadeesh Kumar Tangudu, Sreenivasa R. Voleti
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Patent number: 11424692Abstract: System and methods for power conversion are provided. Aspects include a first switching module comprising a first set of switches, wherein the first set of switches comprise wide-bandgap devices having a first bandgap, a second switching module comprising a second set of switches, wherein the second set of switches comprise semiconductor devices having a second bandgap, and wherein the first bandgap is larger than the second bandgap, an alternating current (AC) power source connected to the first switching module and the second switching module, a first capacitor bank, a second capacitor bank, and a controller configured to operate the first switching module and the second switching module to create a first direct current (DC) voltage across the first capacitor bank and a second direct current (DC) voltage across the second capacitor bank.Type: GrantFiled: December 23, 2020Date of Patent: August 23, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Suman Dwari, Brian St. Rock, Jeffrey Ewanchuk
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Publication number: 20220200473Abstract: System and methods for power conversion are provided. Aspects include a first switching module comprising a first set of switches, wherein the first set of switches comprise wide-bandgap devices having a first bandgap, a second switching module comprising a second set of switches, wherein the second set of switches comprise semiconductor devices having a second bandgap, and wherein the first bandgap is larger than the second bandgap, an alternating current (AC) power source connected to the first switching module and the second switching module, a first capacitor bank, a second capacitor bank, and a controller configured to operate the first switching module and the second switching module to create a first direct current (DC) voltage across the first capacitor bank and a second direct current (DC) voltage across the second capacitor bank.Type: ApplicationFiled: December 23, 2020Publication date: June 23, 2022Inventors: Suman Dwari, Brian St. Rock, Jeffrey Ewanchuk
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Patent number: 11346586Abstract: An electrocaloric module includes an electrocaloric element that includes an electrocaloric film, a first electrode on a first surface of the electrocaloric film, and a second electrode on a second surface of the electrocaloric film. A support is attached along an edge portion of the electrocaloric film, leaving a central portion of the electrocaloric film unsupported film. At least one of the first and second electrodes includes a patterned disposition of conductive material on the film surface. The electrocaloric module also includes a first thermal connection configured to connect to a first thermal flow path between the electrocaloric element and a heat sink, a second thermal connection configured to connect to a second thermal flow path between the electrocaloric element and a heat source, and a power connection connected to the first and second electrodes and configured to connect to a power source.Type: GrantFiled: June 18, 2018Date of Patent: May 31, 2022Assignee: CARRIER CORPORATIONInventors: Wei Xie, Subramanyaravi Annapragada, Joseph V. Mantese, Scott Alan Eastman, Parmesh Verma, Suman Dwari, Michael L. Perry, Vladimir Blasko
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Patent number: 11345567Abstract: An elevator system includes an elevator car (28) disposed in and constructed and arranged to move along a hoistway (26) generally defined by a stationary structure. A short-range communication system of the elevator system is configured to provide communication between the elevator car and the stationary structure, and may include a transceiver (62, 64) carried by the elevator car and a plurality of transceivers (66) spaced along the hoistway. A network coordinator (68) of the communication system is operatively coupled to the plurality of hoistway transceivers to provide uninterrupted communication.Type: GrantFiled: March 3, 2017Date of Patent: May 31, 2022Assignee: OTIS ELEVATOR COMPANYInventors: David Ginsberg, Suman Dwari, Xin Wu
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Patent number: 11336120Abstract: A wireless power transfer system for wirelessly powering a conveyance apparatus of a conveyance system including: a wireless electrical power transmitter located along a side of the conveyance system in a first location, the side being stationary; and a wireless electrical power receiver located along a surface of the conveyance apparatus opposite the side, the wireless electrical power receiver and the wireless electrical power transmitter being in a facing spaced relationship defining a gap therebetween when the wireless electrical power receiver is located at the first location.Type: GrantFiled: December 9, 2019Date of Patent: May 17, 2022Assignee: OTIS ELEVATOR COMPANYInventors: Suman Dwari, Ajit Rajagopalan, Stephen Savulak, Goran Djuknic, Parikshith B. Channegowda, Enrico Manes
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Publication number: 20210239613Abstract: A scanner of an optical detection system includes a housing, a light source associated with the housing operable to emit a light pulse into an area being scanned, a light sensitive device associated with the housing operable to detect a reflected light pulse from the area being scanned and an actuator for moving the light pulse through the area being scanned. The actuator comprises a solid state flexible polymer deformable in response to application of a voltage to the solid state flexible polymer.Type: ApplicationFiled: May 6, 2019Publication date: August 5, 2021Inventors: Rajiv Ranjan, Suman Dwari, Peter R. Harris
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Patent number: 11051428Abstract: Disclosed is a thermal management system for removing heat from a power electronic heat source, the system comprising: a base plate having a plurality of fluid passages there through and extending between and inlet side of the base plate and an outlet side of the base plate; and a plurality of heat transfer pipe segments respectively attached to one or more of the plurality of fluid passages at the inlet side of the base plate and the outlet side of the base plate, the plurality of heat transfer pipe segments arranged adjacent one another, the plurality of heat transfer pipe segments containing a two-phase working fluid, and the plurality of heat transfer pipe segments forming a continuous flow path through and back into the base plate for the two-phase working fluid.Type: GrantFiled: October 31, 2019Date of Patent: June 29, 2021Assignee: HAMILTON SUNSTRAND CORPORATIONInventors: Jinliang Wang, Suman Dwari