Patents by Inventor Chijou Wang
Chijou Wang 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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Publication number: 20250042367Abstract: A fluid curtain system for a vehicle mounted sensor includes a sensor member including a first end, a second end, and a sensing surface. The sensing surface is arranged between the first end and the second end. A fluid curtain generator is arranged at one of the first end and the second end of the sensor member. The fluid curtain generator is operable to generate and direct multiple streams of fluid at the sensor, the multiple streams of fluid forming a fluid curtain across the sensing surface.Type: ApplicationFiled: August 1, 2023Publication date: February 6, 2025Inventors: Steven James Jennings, Thomas W. Jozwiak, Chijou Wang
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Publication number: 20240301810Abstract: A compressor assembly includes a compressor housing having an inlet port configured to receive intake air and an outlet port configured to discharge pressurized air. A hollow section having an inner radial surface defines the inlet port of the compressor housing. A compressor wheel is disposed in the hollow section. A positive crankcase ventilation (PCV) passage is configured to allow airflow between a crankcase of an engine and the hollow section of the compressor housing. The PCV passage has an outlet opening that opens into the hollow section of the compressor housing and the inner radial surface includes an integrally formed raised boss surrounding the outlet opening and protruding into the hollow section.Type: ApplicationFiled: March 6, 2023Publication date: September 12, 2024Inventors: Fengkun WANG, Carnell E. WILLIAMS, Chijou WANG, Maxwell Tyler DOIRON
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Patent number: 12071872Abstract: A compressor assembly includes a compressor housing having an inlet port configured to receive intake air and an outlet port configured to discharge pressurized air. A hollow section having an inner radial surface defines the inlet port of the compressor housing. A compressor wheel is disposed in the hollow section. A positive crankcase ventilation (PCV) passage is configured to allow airflow between a crankcase of an engine and the hollow section of the compressor housing. The PCV passage has an outlet opening that opens into the hollow section of the compressor housing and the inner radial surface includes an integrally formed raised boss surrounding the outlet opening and protruding into the hollow section.Type: GrantFiled: March 6, 2023Date of Patent: August 27, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Fengkun Wang, Carnell E. Williams, Chijou Wang, Maxwell Tyler Doiron
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Publication number: 20240139759Abstract: A sensor cleaning nozzle includes a nozzle housing including a first end and a second end defining a head portion, and a nozzle system arranged within the nozzle housing. The nozzle system includes a fluid feed member including a fluid feed inlet arranged at the first end and a fluid feed outlet arranged in the head portion. A cleaning nozzle is arranged in the head portion. The cleaning nozzle includes a nozzle inlet is fluidically connected to the fluid feed outlet, a nozzle outlet is exposed at the head portion, and a nozzle bore extends between the nozzle inlet and the nozzle outlet. The nozzle bore converges from the nozzle inlet toward the nozzle outlet along a first nozzle axis and diverges from the nozzle inlet toward the nozzle outlet along a second nozzle axis.Type: ApplicationFiled: May 4, 2023Publication date: May 2, 2024Inventors: Thomas W. Jozwiak, Chijou Wang, Grant W. Brady
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Patent number: 11808177Abstract: A turbocharger including a compressor section having a compressor housing with an air inlet and a compressor air discharge and a compressor wheel in the compressor housing. A turbine section having a turbine housing with an exhaust gas inlet and a turbine exhaust gas outlet and a turbine wheel in the turbine housing, the turbine wheel being drivingly connected to the compressor wheel, the exhaust gas inlet being configured to be connected to an engine exhaust passage and the turbine exhaust gas outlet being configured to be connected to an exhaust system. The compressor housing includes a diffuser with a recess that receives the compressor wheel wherein the recess has a sidewall with an upper edge and the compressor wheel has a base plate with an upper surface that is below the upper edge of the sidewall of the recess in the diffuser.Type: GrantFiled: July 26, 2022Date of Patent: November 7, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ian Alexander May, Chijou Wang, Carnell E. Williams
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Patent number: 11180996Abstract: A turbine wheel for a turbocharger of a vehicle propulsion system includes a central hub and a plurality of blades extending outwardly from the central hub. Each of the blades defining an inducer section and an exducer section, and each of the blades including a first surface portion and a second surface portion. The first surface portion including a thermal barrier coating and the second surface portion free from the thermal barrier coating.Type: GrantFiled: October 23, 2019Date of Patent: November 23, 2021Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Grant W. Brady, Chijou Wang, Julie A. Swartz, Su Jung Han
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Publication number: 20210123346Abstract: A turbine wheel for a turbocharger of a vehicle propulsion system includes a central hub and a plurality of blades extending outwardly from the central hub. Each of the blades defining an inducer section and an exducer section, and each of the blades including a first surface portion and a second surface portion. The first surface portion including a thermal barrier coating and the second surface portion free from the thermal barrier coating.Type: ApplicationFiled: October 23, 2019Publication date: April 29, 2021Inventors: Grant W. Brady, Chijou Wang, Julie A. Swartz, Su Jung Han
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Patent number: 10935045Abstract: A compressor includes a compressor impeller configured to rotate about an axis of rotation as intake gases flow along the compressor impeller. The compressor impeller includes an inducer and an exducer. The compressor impeller defines a first impeller end at the inducer and a second impeller end at the exducer. The second impeller end extends along a radial axis. The compressor further includes a compressor housing encasing the compressor impeller. The compressor housing defines a compressor volute. The compressor housing partially defines a diffuser in fluid communication with the compressor volute. The diffuser is elongated along a diffuser axis. The diffuser axis is obliquely angled relative to the axis of rotation. The diffuser axis is obliquely angled relative to the radial axis to minimize a turbulence of the intake gases flowing from the diffuser to the compressor volute.Type: GrantFiled: July 19, 2018Date of Patent: March 2, 2021Assignee: GM Global Technology Operations LLCInventor: Chijou Wang
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Publication number: 20200025214Abstract: A compressor includes a compressor impeller configured to rotate about an axis of rotation as intake gases flow along the compressor impeller. The compressor impeller includes an inducer and an exducer. The compressor impeller defines a first impeller end at the inducer and a second impeller end at the exducer. The second impeller end extends along a radial axis. The compressor further includes a compressor housing encasing the compressor impeller. The compressor housing defines a compressor volute. The compressor housing partially defines a diffuser in fluid communication with the compressor volute. The diffuser is elongated along a diffuser axis. The diffuser axis is obliquely angled relative to the axis of rotation. The diffuser axis is obliquely angled relative to the radial axis to minimize a turbulence of the intake gases flowing from the diffuser to the compressor volute.Type: ApplicationFiled: July 19, 2018Publication date: January 23, 2020Applicant: GM Global Technology Operations LLCInventor: Chijou Wang
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Patent number: 9995720Abstract: A snorkel assembly for reading optimization of a sensor, wherein the snorkel assembly may be configured to be positioned around and spaced apart from the sensor. The snorkel assembly may include an upstream side and a downstream side. The snorkel assembly may include a cup section and a tube section extending from the cup section. The tube section may include an inlet opening on the upstream side of the snorkel assembly. The cup section may include an exhaust opening on the downstream side of the snorkel assembly.Type: GrantFiled: May 27, 2015Date of Patent: June 12, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Luciano Nunziato Di Perna, Chijou Wang, Rahul Mital, Jianwen Li, James B. Rodgers
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Patent number: 9821282Abstract: An exhaust system for a diesel engine, includes an exhaust passage adapted to be attached to the diesel engine. A diesel oxidation catalyst is provided in the exhaust passage along with a selective catalyst reduction device disposed downstream from the diesel oxidation catalyst. A diesel exhaust fluid mixing system includes a diesel exhaust fluid injection nozzle and a mixing device defining a single inlet opening and a single outlet opening connected to one another by a partial spiral flow passage. The diesel exhaust fluid injection nozzle injects diesel exhaust fluid directly into the inlet opening of the partial spiral flow passage.Type: GrantFiled: December 4, 2014Date of Patent: November 21, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jianwen Li, Chijou Wang, Rahul Mital, Luciano Nunziato Di Perna, James B. Rodgers
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Publication number: 20170161662Abstract: A system and method of managing software license usage includes: receiving a simulation model that will be processed using two or more license-based software applications; identifying a first license key that will be used to process at least a portion of the simulation model; identifying a second license key that will be used to process at least a portion of the simulation model; and processing the simulation model using the first license key and the second license key, wherein the first license key and the second license key are not used simultaneously and the unused key remains in a shared pool of available license keys.Type: ApplicationFiled: December 2, 2015Publication date: June 8, 2017Inventors: Chijou WANG, Manoj K. MONINGI, Yangbing ZENG
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Publication number: 20160349227Abstract: A snorkel assembly for reading optimization of a sensor, wherein the snorkel assembly may be configured to be positioned around and spaced apart from the sensor. The snorkel assembly may include an upstream side and a downstream side. The snorkel assembly may include a cup section and a tube section extending from the cup section. The tube section may include an inlet opening on the upstream side of the snorkel assembly. The cup section may include an exhaust opening on the downstream side of the snorkel assembly.Type: ApplicationFiled: May 27, 2015Publication date: December 1, 2016Inventors: LUCIANO NUNZIATO DI PERNA, CHIJOU WANG, RAHUL MITAL, JIANWEN LI, JAMES B. RODGERS
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Publication number: 20160158714Abstract: An exhaust system is provided for a diesel engine, including an exhaust passage adapted to be attached to the diesel engine. A diesel oxidation catalyst is provided in the exhaust passage along with a selective catalyst reduction device disposed downstream from the diesel oxidation catalyst. A diesel exhaust fluid mixing system includes a diesel exhaust fluid injection nozzle and a mixing device defining a single inlet opening and a single outlet opening connected to one another by a partial spiral flow passage. The diesel exhaust fluid injection nozzle injects diesel exhaust fluid directly into the inlet opening of the partial spiral flow passage.Type: ApplicationFiled: December 4, 2014Publication date: June 9, 2016Inventors: Jianwen LI, Chijou WANG, Rahul MITAL, Luciano Nunziato DI PERNA, James B. RODGERS
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Patent number: 8826649Abstract: An assembly for mixing liquid within a gas flow includes a hollow conduit that is configured for containing a flow of gas and liquid droplets. The assembly also includes multiple spaced blades and an impingement element. Each of the blades is operatively connected to and extends from the impingement element and is connected to an inner wall of the conduit. The impingement element is upstream of the blades in the flow of gas. The impingement element and the blades are configured to create a preferred distribution of the liquid droplets within the gas flow downstream of the blades within the conduit.Type: GrantFiled: October 18, 2011Date of Patent: September 9, 2014Assignee: GM Global Technology Operations LLCInventors: Jianwen Li, James B. Rodgers, Chijou Wang, Rahul Mital
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Patent number: 8539767Abstract: An exhaust system comprises an exhaust driven turbocharger having an outlet and a flanged portion that extends about the outlet, an exhaust treatment device comprising a canister having an inlet cone that includes an integral inlet flange defining an the inlet opening configured to define a seal with the flanged portion that extends about the outlet of the turbocharger and a substrate disposed within the canister through which the exhaust gas flows. An exhaust gas passage, fluidly couples the turbocharger and the exhaust treatment device and allows for the passage of exhaust gas therebetween and a flow modifier comprising a radially inwardly extending wall portion extends from an inner wall of the exhaust gas passage and directs the exhaust gas away from an outer radius of the exhaust gas passage to evenly distribute the exhaust gas across the an inlet face of the substrate.Type: GrantFiled: July 13, 2011Date of Patent: September 24, 2013Assignee: GM Global Technology Operations LLCInventors: Kimberly O'Kane, Chijou Wang, Gary Clark, II
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Publication number: 20130091830Abstract: An assembly for mixing liquid within a gas flow includes a hollow conduit that is configured for containing a flow of gas and liquid droplets. The assembly also includes multiple spaced blades and an impingement element. Each of the blades is operatively connected to and extends from the impingement element and is connected to an inner wall of the conduit. The impingement element is upstream of the blades in the flow of gas. The impingement element and the blades are configured to create a preferred distribution of the liquid droplets within the gas flow downstream of the blades within the conduit.Type: ApplicationFiled: October 18, 2011Publication date: April 18, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jianwen Li, James B. Rodgers, Chijou Wang, Rahul Mital
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Publication number: 20120234003Abstract: An exhaust system comprises an exhaust driven turbocharger having an outlet and a flanged portion that extends about the outlet, an exhaust treatment device comprising a canister having an inlet cone that includes an integral inlet flange defining an the inlet opening configured to define a seal with the flanged portion that extends about the outlet of the turbocharger and a substrate disposed within the canister through which the exhaust gas flows. An exhaust gas passage, fluidly couples the turbocharger and the exhaust treatment device and allows for the passage of exhaust gas therebetween and a flow modifier comprising a radially inwardly extending wall portion extends from an inner wall of the exhaust gas passage and directs the exhaust gas away from an outer radius of the exhaust gas passage to evenly distribute the exhaust gas across the an inlet face of the substrate.Type: ApplicationFiled: July 13, 2011Publication date: September 20, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kimberly O'Kane, Chijou Wang, Gary Clark, II