Patents by Inventor Parmesh Verma
Parmesh Verma 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: 9267696Abstract: An air temperature and humidity control device is provided including a first heat pump having a compressor, an expansion valve, a condenser, and an evaporator. The first heat pump has a refrigerant circulating there through. A humidity controller includes a first contactor fluidly coupled to the evaporator and condenser. The first contact includes at least one contact module having a porous sidewall that defines an internal space through which a hygroscopic material flows. A first air flow is in communication with the porous sidewall of the first contactor. The device also has a second heat pump including a first polishing coil. The first polishing coil is substantially aligned with and arranged generally downstream from the first contactor relative to the first air flow.Type: GrantFiled: February 27, 2014Date of Patent: February 23, 2016Assignee: CARRIER CORPORATIONInventors: David W. Gerlach, Sherif Kandil, Parmesh Verma, Frederick J. Cogswell, Rajiv Ranjan, Ahmad M. Mahmoud, Richard G. Lord
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Patent number: 9261298Abstract: A system has a compressor (22, 412). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. The system has a heat absorption heat exchanger (64). The system includes a separator (170) comprising a vessel having an interior. The separator has an inlet, a first outlet, and a second outlet. An inlet conduit may extend from the inlet and may have the conduit outlet positioned to discharge an inlet flow into the vessel interior to cause the inlet flow to hit a wall before passing to a liquid refrigerant accumulation in the vessel.Type: GrantFiled: July 20, 2011Date of Patent: February 16, 2016Assignee: Carrier CorporationInventors: Jinliang Wang, Parmesh Verma, David P. Martin, Frederick J. Cogswell
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Patent number: 9217590Abstract: A system (200; 300; 400; 500; 600) has a compressor (22; 200, 221). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. An ejector (38) has a primary inlet (40) coupled to the heat rejection heat exchanger to receive refrigerant, a secondary inlet (42), and an outlet (44). A separator (48) has an inlet (50) coupled to the outlet of the ejector to receive refrigerant from the ejector, a gas outlet (54), and a liquid outlet (52). One or more valves (244, 246, 248, 250) are positioned to allow switching of the system between first and second modes.Type: GrantFiled: January 4, 2011Date of Patent: December 22, 2015Assignee: United Technologies CorporationInventors: Frederick J. Cogswell, Hongsheng Liu, Parmesh Verma, Oliver Finckh
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Publication number: 20150293002Abstract: A method of measuring concentrations of gas mixtures is disclosed in which an ionic liquid and/or low vapor-pressure organic solvent is exposed to a gas mixture being tested to form a solution of the gas components in the liquid. The vapor pressure of the solution is then measured at one or more other temperatures and compared to predicted vapor pressures based on known individual vapor pressure profiles of the gas components in the liquid in order to determine the actual proportions of the components in the gas sample.Type: ApplicationFiled: August 23, 2013Publication date: October 15, 2015Inventors: Yinshan Feng, Parmesh Verma, Mary Teresa Lombardo
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Patent number: 9140470Abstract: An ejector has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet to the outlet. A secondary flowpath extends from the secondary inlet to the outlet. A mixer convergent section (114; 300; 400) is downstream of the secondary inlet. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle has a throat (106) and an exit (110). An actuator (204) is coupled to the motive nozzle to drive a relative streamwise shift of the exit and convergent section.Type: GrantFiled: November 1, 2011Date of Patent: September 22, 2015Assignee: Carrier CorporationInventors: Parmesh Verma, Frederick J. Cogswell, Jinliang Wang
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Patent number: 8955343Abstract: A system has a compressor. A heat rejection heat exchanger is coupled to the compressor to receive refrigerant compressed by the compressor. An ejector has a primary inlet coupled with heat rejection heat exchanger to receive refrigerant, a secondary inlet, and an outlet. The system has a heat absorption heat exchanger. The system includes means for providing at least of a 1-10% quality refrigerant to the heat absorption heat exchanger and an 85-99% quality refrigerant to at least one of the compressor and, if present, a suction line heat exchanger.Type: GrantFiled: July 20, 2011Date of Patent: February 17, 2015Assignee: Carrier CorporationInventors: Parmesh Verma, Jinliang Wang, Frederick J. Cogswell, Hans-Joachim Huff, Alexander Lifson, Richard G. Lord
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Publication number: 20140260404Abstract: A refrigerant system includes a first, substantially outdoor, two phase heat transfer fluid vapor compression circulation loop including a compressor, a heat exchanger condenser, an expansion device, and the heat absorption side of a heat exchanger evaporator condenser, connected by conduit in a closed loop and having disposed therein a first heat transfer fluid having a critical temperature of greater than or equal to 31.2° C. The system also includes a second, at least partially indoor, two phase heat transfer fluid circulation loop that transfers heat to the first loop through the heat exchanger evaporator condenser. The second loop includes the heat rejection side of the heat exchanger evaporator condenser, a liquid pump, and a heat exchanger evaporator, connected by conduit in a closed loop and having disposed therein a second heat transfer fluid that has an ASHRAE Class A toxicity rating and an ASHRAE Class 1 or 2L flammability rating.Type: ApplicationFiled: September 27, 2012Publication date: September 18, 2014Applicant: Carrier CorporationInventors: Parmesh Verma, Frederick J. Cogswell, Thomas D. Radcliff, Mohsen Farzad, Vladimir Blasko, Jules R. Munoz, Seshadri Sivakumar
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Publication number: 20140245772Abstract: An air temperature and humidity control device is provided including a first heat pump having a compressor, an expansion valve, a condenser, and an evaporator. The first heat pump has a refrigerant circulating there through. A humidity controller includes a first contactor fluidly coupled to the evaporator and condenser. The first contact includes at least one contact module having a porous sidewall that defines an internal space through which a hygroscopic material flows. A first air flow is in communication with the porous sidewall of the first contactor. The device also has a second heat pump including a first polishing coil. The first polishing coil is substantially aligned with and arranged generally downstream from the first contactor relative to the first air flow.Type: ApplicationFiled: February 27, 2014Publication date: September 4, 2014Applicant: Carrier CorporationInventors: David W. Gerlach, Sherif Kandil, Parmesh Verma, Frederick J. Cogswell, Rajiv Ranjan, Ahmad M. Mahmoud, Richard G. Lord
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Patent number: 8776539Abstract: A system has first and second compressors (22, 180), a heat rejection heat exchanger (30), an ejector (38), a heat absorption heat exchanger (64), and a separator (48). The heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. The ejector (38) has a primary inlet (40) coupled to the heat rejection exchanger (30) to receive refrigerant, a secondary inlet (42), and an outlet (44). The separator (48) has an inlet coupled to the outlet of the ejector to receive refrigerant from the ejector. The separator has a gas outlet (54) coupled to the compressor (22) to return refrigerant to the first compressor. The separator has a liquid outlet (52) coupled to the secondary inlet of the ejector to deliver refrigerant to the ejector (38). The heat absorption heat exchanger (64) is coupled to the liquid outlet of the separator to receive refrigerant. The second compressor (180) is between the separator and the ejector secondary inlet.Type: GrantFiled: July 20, 2011Date of Patent: July 15, 2014Assignee: Carrier CorporationInventors: Parmesh Verma, Jinliang Wang
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Publication number: 20140157807Abstract: An ejector (200; 300; 400; 600) has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet to the outlet. A secondary flowpath extends from the secondary inlet to the outlet. A mixer convergent section (114) is downstream of the secondary inlet. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle has an exit (110). A secondary inlet passageway along the secondary flowpath has a terminal portion oriented to discharge a secondary flow along the secondary flowpath at an angle of less than 75° off-parallel to a local direction of the primary flowpath.Type: ApplicationFiled: December 8, 2011Publication date: June 12, 2014Applicant: CARRIER CORPORATIONInventors: Frederick J. Cogswell, Jinliang Wang, Parmesh Verma
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Publication number: 20140109604Abstract: An ejector (200; 300; 400; 600) has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet to the outlet. A secondary flowpath extends from the secondary inlet to the outlet. A mixer convergent section (114) is downstream of the secondary inlet. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle has an exit (110). The mixer has a downstream divergent section down-stream of the convergent section and having a divergence half angle of 0.1-2.0 over a first span of at least 3.0 times a minimum diameter of the mixer.Type: ApplicationFiled: June 21, 2012Publication date: April 24, 2014Applicant: CARRIER CORPORATIONInventors: Miad Yazdani, Abbas A. Alahyari, Thomas D. Radcliff, Parmesh Verma
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Publication number: 20140083121Abstract: An ejector (200; 300; 400) has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet to the outlet. A secondary flowpath extends from the secondary inlet to the outlet. A mixer convergent section (114) is downstream of the secondary inlet. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath to pass a motive flow. The motive nozzle has an exit (110). The ejector has surfaces (258, 260) positioned to introduce swirl to the motive flow.Type: ApplicationFiled: April 10, 2012Publication date: March 27, 2014Applicant: CARRIER CORPORATIONInventors: Louis Chiappetta, JR., Parmesh Verma, Thomas D. Radcliff
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Publication number: 20130277448Abstract: An ejector (200; 300; 320; 340; 400; 430; 460; 480) has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet (40) to the outlet (44) and a secondary flowpath extends from the secondary inlet (42) to the outlet (44), merging with the primary flowpath. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle (100) has a throat (106) and an exit (110). The ejector (200; 300; 320; 340; 400; 430; 460; 480) further has a means (204, 210; 304; 322; 342; 402; 432; 462; 482) for varying an effective area of the exit (110) or simultaneously varying the effective area of the exit (110) and an effective area of the throat (106).Type: ApplicationFiled: January 4, 2011Publication date: October 24, 2013Applicant: CARRIER CORPORATIONInventors: Hongsheng Liu, Jiang Zou, Frederick J. Cogswell, Jinliang Wang, Parmesh Verma
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Publication number: 20130251505Abstract: A system (20) has a first compressor (22) and a second compressor (52). A heat rejection heat exchanger (30) is coupled to the first and second compressors to receive refrigerant compressed by the compressors. The system includes an economizer for receiving refrigerant from the heat rejection heat exchanger and reducing an enthalpy of a first portion of the received refrigerant while increasing an enthalpy of a second portion. The second portion is returned to the compressor. The ejector (66) has a primary inlet (70) coupled to the means to receive a first flow of the reduced enthalpy refrigerant. The ejector has a secondary inlet (72) and an outlet (74). The outlet is coupled to the first compressor to return refrigerant to the first compressor. A first heat absorption heat exchanger (80) is coupled to the economizer to receive a second flow of the reduced enthalpy refrigerant and is upstream of the secondary inlet of the ejector.Type: ApplicationFiled: July 22, 2011Publication date: September 26, 2013Applicant: CARRIER CORPORATIONInventors: Jinliang Wang, Parmesh Verma, Frederick J. Cogswell
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Publication number: 20130239600Abstract: An ejector has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet to the outlet. A secondary flowpath extends from the secondary inlet to the outlet. A mixer convergent section (114; 300; 400) is downstream of the secondary inlet. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle has a throat (106) and an exit (110). An actuator (204) is coupled to the motive nozzle to drive a relative streamwise shift of the exit and convergent section.Type: ApplicationFiled: November 1, 2011Publication date: September 19, 2013Applicant: Carrier CoprorationInventors: Parmesh Verma, Frederick J. Cogswell, Jinliang Wang
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Publication number: 20130152626Abstract: A composition is described including a first fluorinated hydrocarbon compound according to the formula: wherein R1, R2, R3, R4, and R5 are each independently H, F, Cl, Br, or I, n is 0, 1, 2, or 3, and each R? group is independently H, F, Cl, Br, or I, with the proviso that zero to three of R1, R2, R3, R4, and R5 are F; a second fluorinated hydrocarbon compound according to the formula: wherein m is 0 or 1, and R6, R7, and R8 are each independently H, F, Cl, Br, or I, with the proviso that one of R6, R7, and R8 is F; and a third fluorinated hydrocarbon compound according to the formula: wherein R9, R10, R11, R12 and R13 are each independently H, Cl, Br, or I.Type: ApplicationFiled: August 11, 2011Publication date: June 20, 2013Applicant: CARRIER CORPORATIONInventors: Yinshan Feng, Parmesh Verma
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Publication number: 20130125569Abstract: A system (200; 250; 270) has first (220) and second (222) compressors, a heat rejection heat exchanger (30), first (38) and second (202) ejectors, a heat absorption heat exchanger (64), and a separator (48). The heat rejection heat exchanger is coupled to the second compressor to receive refrigerant compressed by the second compressor. The first ejector has a primary inlet (40) coupled to the heat rejection exchanger to receive refrigerant, a secondary inlet (42), and an outlet (44). The second ejector has a primary inlet (204) coupled to the heat rejection heat exchanger to receive refrigerant, a secondary inlet (206), and an outlet (208). The separator has an inlet (50) coupled to the outlet (44) of the first ejector to receive refrigerant from the first ejector. The separator has a gas outlet (54) coupled to the secondary inlet (206) of the second ejector via the first compressor (220) to deliver refrigerant to the second ejector.Type: ApplicationFiled: July 20, 2011Publication date: May 23, 2013Applicant: CARRIER CORPORATIONInventors: Parmesh Verma, Thomas D. Radcliff, Frederick J. Cogswell
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Publication number: 20130111944Abstract: A system has a compressor (22), a heat rejection heat exchanger (30), first and second ejectors (38, 202), first and second heat absorption heat exchangers (64, 220), and first and second separators (118, 210). The heat rejection heat exchanger is coupled to the compressor to receive refrigerant compressed by the compressor. The first ejector has a primary inlet coupled to the heat rejection exchanger to receive refrigerant, a secondary inlet, and an outlet. The first separator has an inlet coupled to the out let of the first ejector to receive refrigerant from the first ejector. The first separator has a gas outlet coupled to the compressor to return refrigerant to the compressor. The first separator has a liquid outlet coupled to the secondary inlet of the ejector to deliver refrigerant to the first ejector.Type: ApplicationFiled: July 20, 2011Publication date: May 9, 2013Applicant: CARRIER CORPORATIONInventors: Jinliang Wang, Parmesh Verma
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Publication number: 20130111930Abstract: A system (170) has a compressor (22). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. A non - controlled ejector (38) has a primary inlet coupled to the heat rejection exchanger to receive refrigerant, a secondary inlet, and an outlet. The system includes means (172, e.g., a nozzle) for causing a supercritical-to-subcritical transition upstream of the ejector.Type: ApplicationFiled: July 20, 2011Publication date: May 9, 2013Applicant: Carrier CorporationInventors: Thomas D. Radcliff, Parmesh Verma, Jinliang Wang, Frederick J. Cogswell
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Publication number: 20130111934Abstract: A system has a compressor (22, 412). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. The system has a heat absorption heat exchanger (64). The system includes a separator (170) comprising a vessel having an interior. The separator has an inlet, a first outlet, and a second outlet. An inlet conduit may extend from the inlet and may have the conduit outlet positioned to discharge an inlet flow into the vessel interior to cause the inlet flow to hit a wall before passing to a liquid refrigerant accumulation in the vessel.Type: ApplicationFiled: July 20, 2011Publication date: May 9, 2013Applicant: Carrier CorporationInventors: Jinliang Wang, Parmesh Verma, David P. Martin, Frederick J. Cogswell