Patents by Inventor Kanwal Bhatia
Kanwal Bhatia 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: 7520210Abstract: An oil separator for a compressor is shown, wherein an oil separating efficiency is maximized and a material cost, a weight, and an assembly time are minimized.Type: GrantFiled: September 27, 2006Date of Patent: April 21, 2009Assignee: Visteon Global Technologies, Inc.Inventors: Michael Gregory Theodore, Jr., Brian Kelm, Alfred Lim Poy, Yong Huang, Kanwal Bhatia
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Patent number: 7494328Abstract: A rear housing for a compressor reduces NVH without increasing the overall size of the compressor or inducing flow loss. Generally, the compressor includes a cylinder block receiving lower pressure fluid from the rear housing and providing higher pressure fluid back to the rear housing. The rear housing includes an annular outer wall and an annular inner wall defining a suction chamber and a discharge chamber. An inlet is in fluid communication with the suction chamber. An outlet is in fluid communication with the discharge chamber. The outlet includes a discharge passageway having a tubular member projecting into the discharge chamber. The tubular member is defined by a side wall and a closed end wall. The side wall includes a plurality of holes fluidically connecting the discharge chamber and the discharge passageway.Type: GrantFiled: July 6, 2005Date of Patent: February 24, 2009Assignee: Visteon Global Technologies, Inc.Inventors: Kanwal Bhatia, Rodney James Callahan, Kastriot Shaska
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Publication number: 20080072750Abstract: An oil separator for a compressor is shown, wherein an oil separating efficiency is maximized and a material cost, a weight, and an assembly time are minimized.Type: ApplicationFiled: September 27, 2006Publication date: March 27, 2008Inventors: Michael Gregory Theodore, Brian Kelm, Alfred Lim Poy, Yong Huang, Kanwal Bhatia
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Patent number: 7181926Abstract: An oil separator-muffler for a compressor includes an inner chamber with an oil accumulation region and a wall positioned in the inner chamber. The wall defines a separator region and has an impingement surface. The arrangement of the wall in the inner chamber defines flow channels of varying cross-sectional areas. A mixture inlet for the separator-muffler provides a passageway for an oil gaseous refrigerant mixture to flow from the exterior of the separator-muffler into the separator region. The oil is separated from the mixture as the mixture impinges against the impingement surface and flows into the oil accumulation region. A channel in fluid communication with the oil accumulation region provides a passageway for the separated oil from the accumulation region to the exterior of the separator-muffler.Type: GrantFiled: May 23, 2005Date of Patent: February 27, 2007Assignee: Visteon Global Technologies, Inc.Inventors: Kanwal Bhatia, Michael G. Theodore, Jr., Kastriot Shaska
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Publication number: 20070020132Abstract: A rear housing for a compressor reduces NVH without increasing the overall size of the compressor or inducing flow loss. Generally, the compressor includes a cylinder block receiving lower pressure fluid from the rear housing and providing higher pressure fluid back to the rear housing. The rear housing includes an annular outer wall and an annular inner wall defining a suction chamber and a discharge chamber. An inlet is in fluid communication with the suction chamber. An outlet is in fluid communication with the discharge chamber. The outlet includes a discharge passageway having a tubular member projecting into the discharge chamber. The tubular member is defined by a side wall and a closed end wall. The side wall includes a plurality of holes fluidically connecting the discharge chamber and the discharge passageway.Type: ApplicationFiled: July 6, 2005Publication date: January 25, 2007Inventors: Kanwal Bhatia, Rodney Callahan, Kastriot Shaska
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Publication number: 20060260340Abstract: An oil separator-muffler for a compressor includes an inner chamber with an oil accumulation region and a wall positioned in the inner chamber. The wall defines a separator region and has an impingement surface. The arrangement of the wall in the inner chamber defines flow channels of varying cross-sectional areas. A mixture inlet for the separator-muffler provides a passageway for an oil gaseous refrigerant mixture to flow from the exterior of the separator-muffler into the separator region. The oil is separated from the mixture as the mixture impinges against the impingement surface and flows into the oil accumulation region. A channel in fluid communication with the oil accumulation region provides a passageway for the separated oil from the accumulation region to the exterior of the separator-muffler.Type: ApplicationFiled: May 23, 2005Publication date: November 23, 2006Inventors: Kanwal Bhatia, Michael Theodore, Kastriot Shaska
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Patent number: 7060122Abstract: An oil separator for a compressor includes a wall with an inner surface defining an inner chamber. The inner chamber includes an oil accumulation region and a separator region with an impingement surface. A mixture inlet provides a passageway for an oil and gaseous refrigerant mixture to flow from the exterior of the separator into the inner chamber. Oil is separated from the mixture as the mixture impinges against the impingement surface. The separated oil drains into the accumulation region and exits the separator through the oil outlet. A gas outlet provides a passageway for the gaseous refrigerant from the separator region and out of the separator.Type: GrantFiled: October 6, 2003Date of Patent: June 13, 2006Assignee: Visteon Global Technologies, Inc.Inventors: Kanwal Bhatia, Eric Bryan Gheen, Aurelian Bahmata
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Publication number: 20050226740Abstract: A rear housing for a compressor reduces the operating temperature of the compressor. The compressor generally includes a cylinder block receiving low pressure fluid from the rear housing and providing high pressure fluid back to the rear housing. The rear housing defines a suction chamber and a discharge chamber. The rear housing further defines an isolation chamber positioned between the suction and discharge chambers. In this way, heat transfer between the higher temperature discharge fluid and the lower temperature suction fluid is reduced, thereby reducing the operating temperature of the compressor.Type: ApplicationFiled: April 9, 2004Publication date: October 13, 2005Inventors: Kanwal Bhatia, Eric Gheen, Vipen Khetarpal, Aurelian Bahmata
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Publication number: 20050072307Abstract: An oil separator for a compressor includes a wall with an inner surface defining an inner chamber. The inner chamber includes an oil accumulation region and a separator region with an impingement surface. A mixture inlet provides a passageway for an oil and gaseous refrigerant mixture to flow from the exterior of the separator into the inner chamber. Oil is separated from the mixture as the mixture impinges against the impingement surface. The separated oil drains into the accumulation region and exits the separator through the oil outlet. A gas outlet provides a passageway for the gaseous refrigerant from the separator region and out of the separator.Type: ApplicationFiled: October 6, 2003Publication date: April 7, 2005Inventors: Kanwal Bhatia, Eric Gheen, Aurelian Bahmata
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Publication number: 20040144107Abstract: A system and method for determining engine operation for a start-stop vehicle is provided. The start-stop vehicle includes an HVAC system. The engine operation control system includes an HVAC control head for indicating demand, a sensor for indicating fan speed, at least one sensor for indicating ambient air temperature, and a powertrain control module in communication with the HVAC control head and the sensors. The powertrain control module determines engine operation. The method for controlling engine operation includes the steps of determining HVAC demand, fan speed, and ambient temperature to a control module. The control module determines engine operation based on the signals from the signal generators of the HVAC demand, the fan speed, and the ambient temperature.Type: ApplicationFiled: January 27, 2003Publication date: July 29, 2004Inventors: Matthew Breton, Peter Rex Gawthrop, Kanwal Bhatia
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Publication number: 20030116368Abstract: A vehicle drive system for a hybrid electric vehicle includes an engine, which includes a crankshaft assembly, and a motor, which includes a main rotor shaft. A first clutch selectively engages the crankshaft assembly and the main rotor shaft. The vehicle drive system also includes a transmission, which includes an input shaft, and second clutch which selectively engages the main rotor shaft and the transmission input shaft. An accessory drive mechanism is driven by the main rotor shaft and drives a vehicle accessory. The accessory may be an air conditioning compressor and include a clutch coupled between the accessory drive mechanism and the compressor.Type: ApplicationFiled: December 20, 2001Publication date: June 26, 2003Inventors: James R. Winkelman, William P. Donohue, Kanwal Bhatia, Jeffrey J. Brautigan, Marci Smith, Greg J. Smith, Zheng Lou, Mathew Breton
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Patent number: 6497114Abstract: An oil separator comprising a cylindrical portion, an inlet for incoming gas/oil mixture, an outlet for separated gas, a lower portion, and an outlet for separated oil is provided. The lower portion decreases in diameter as it proceeds from top to bottom, thereby providing for an increase in centrifugal force within the oil separator and greater separation of oil. The inlet traverses an upper wall of the oil separator, and preferably comprises a plurality of passageways angled with respect to the upper wall.Type: GrantFiled: September 18, 2001Date of Patent: December 24, 2002Assignee: Visteon Global Technologies, Inc.Inventors: Guntis Viktors Strikis, Kanwal Bhatia, Srinivas Pitla, Vipen Khetarpal
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Patent number: 6494930Abstract: The present invention relates to an oil separator for separating oil from a gaseous medium discharged by a compressor. The oil separator includes an inlet for communication with the discharge outlet of a compressor, and first and second outlets. The first outlet allows separated refrigerant to escape the oil separator, and the second outlet allows separated oil to escape the oil separator. A tortuous path lies between the inlet and a first outlet, and is comprised of one or more enlarged regions and one or more narrow regions that are angularly situated with each other. The walls of the tortuous path provide surfaces on which the oil contained within the gaseous medium can be impinged, and thereby separated from the gaseous medium. The oil separator may also include a collection chamber and drainage pathways that communicate with the tortuous path. The oil separator can be a separate body that is attached to a compressor, or may be integrally formed by a housing of a compressor.Type: GrantFiled: March 26, 2001Date of Patent: December 17, 2002Assignee: Visteon Global Technologies, Inc.Inventors: Guntis Viktors Strikis, Kanwal Bhatia, Lavlesh Sud, Mirza Mahmood Baig, Vipen Khetarpal
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Patent number: 6481240Abstract: An oil separator comprising a cylindrical portion, an inlet for incoming gas/oil mixture, an outlet for separated gas, a lower portion, and an outlet for separated oil is provided. The lower portion decreases in diameter as it proceeds from top to bottom, thereby providing for an increase in centrifugal force within the oil separator and greater separation of oil.Type: GrantFiled: February 1, 2001Date of Patent: November 19, 2002Assignee: Visteon Global Technologies, Inc.Inventors: Guntis Viktors Strikis, Kanwal Bhatia, Lavlesh Sud, Mirza Qadir Mahmood Baig, Vipen Khetarpal
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Publication number: 20020134062Abstract: The present invention relates to an oil separator for separating oil from a gaseous medium discharged by a compressor. The oil separator includes an inlet for communication with the discharge outlet of a compressor, and first and second outlets. The first outlet allows separated refrigerant to escape the oil separator, and the second outlet allows separated oil to escape the oil separator. A tortuous path lies between the inlet and a first outlet, and is comprised of one or more enlarged regions and one or more narrow regions that are angularly situated with each other. The walls of the tortuous path provide surfaces on which the oil contained within the gaseous medium can be impinged, and thereby separated from the gaseous medium. The oil separator may also include a collection chamber and drainage pathways that communicate with the tortuous path. The oil separator can be a separate body that is attached to a compressor, or may be integrally formed by a housing of a compressor.Type: ApplicationFiled: March 26, 2001Publication date: September 26, 2002Inventors: Guntis Viktors Strikis, Kanwal Bhatia, Lavlesh Sud, Mirza Qadir Mahmood Baig, Vipen Khetarpal
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Publication number: 20020100291Abstract: An oil separator comprising a cylindrical portion, an inlet for incoming gas/oil mixture, an outlet for separated gas, a lower portion, and an outlet for separated oil is provided. The lower portion decreases in diameter as it proceeds from top to bottom, thereby providing for an increase in centrifugal force within the oil separator and greater separation of oil.Type: ApplicationFiled: February 1, 2001Publication date: August 1, 2002Inventors: Guntis Viktors Strikis, Kanwal Bhatia, Lavlesh Sud, Mirza Qadir Mahmood Baig, Vipen Khetarpal
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Patent number: 6394244Abstract: An electromagnetic clutch (110) for an air conditioning compressor includes a generally cylindrical pulley (111) rotatably mounted on a comressor housing (116) and having an annular friction surface (120a, 120b) in a cavity (120). A driven member (112) is mounted on a compressor shaft (113) and has a leg (118, 119) with an annular friction surface (118a, 118b, 119a, 119b) positioned radially adjacent the cavity friction surface to form an annular space (120c, 120f) therebetween. A quantity of flowable magnetic material (127) is provided in the annular space and a magnetic coil (124) is fixed on the housing adjacent thereto. When electrical power is applied to the magnetic coil (124), magnetic flux is generated in the annular space (120c, 120f) polarizing the magnetic material and frictionally coupling the friction surfaces to cause the pulley (111) to rotate the driven member (112).Type: GrantFiled: June 29, 2000Date of Patent: May 28, 2002Assignee: Visteon Global Technologies, Inc.Inventors: Vivek Dwivedi, Guntis V. Strikis, John M. Ginder, Larry D. Elie, Shane A. Harte, Kanwal Bhatia
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Patent number: 6332923Abstract: A liquid spray for depositing a coating on a surface of a substrate includes a support bracket and a liquid atomizer operatively connected to the support bracket to spray a liquid spray system also includes an auxiliary air nozzle operatively connected to the support bracket to spray a stream of air to meet the liquid spray just above the surface of the substrate. The support bracket is positioned at a predetermined angle relative to the surface of the substrate for depositing a liquid spray coating on the surface of the substrate.Type: GrantFiled: February 7, 2000Date of Patent: December 25, 2001Assignee: Visteon Global Technologies, Inc.Inventors: Richard Lee Crawley, Daryl Middleton, James Arthur Davis, Kanwal Bhatia, Robert Franklin Tweadey