With Combustion Engine Patents (Class 374/144)
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Patent number: 8790006Abstract: A thermal measurement system that includes a light collection device and a detection system in communication with the device. The detection system includes two detection subsystems, wherein one subsystem is configured to detect light from a surface of an object, while the other subsystem is configured to detect light from the surface and a gas. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: GrantFiled: November 30, 2009Date of Patent: July 29, 2014Assignee: General Electric CompanyInventors: Hejie Li, Samhita Dasgupta, Edward Randall Furlong, Nirm Velumylum Nirmalan, Anquan Wang, Guanghua Wang, Stephen Thomas Walls, Lesley Ellen Brown
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Patent number: 8788165Abstract: An abnormal state diagnosis method for an automatic transmission oil temperature sensor includes: a warm-up judging step of judging whether a sensor value from an engine side temperature sensor in an engine warm-up state indicates the engine warm-up state; a sensor normal operation judgment step of starting to judge whether the engine side temperature sensor including the warm-up judgment result normally performs a temperature detection operation; a provisional judgment step of judging whether an upper or lower deviation width between the sensor value of the engine side temperature sensor and an oil temperature sensor value from an automatic transmission oil temperature sensor is equal to or smaller than a predetermined threshold value; and a final judgment step of determining the judgment result by the provisional judgment step when the automatic transmission control unit receives a permission signal from the engine control module.Type: GrantFiled: November 6, 2012Date of Patent: July 22, 2014Assignee: JATCO LtdInventors: Yasuhiko Yuyama, Hajime Tasaka, Masahiro Hamano
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Patent number: 8721175Abstract: The fastening apparatus for fastening elements includes a combustion chamber, a housing for a gas cartridge, means for injecting gas from a cartridge into the combustion chamber and a management module. An engine thermistor is provided to be subjected to the temperature of the chamber, as well as a second cartridge thermistor intended to be subjected to the temperature of the gas cartridge disposed in the cartridge housing. Both thermistors are mounted for transmitting their temperature information to the management module. The management module is operable for managing temperature information and determining the opening time of the injection means.Type: GrantFiled: March 18, 2011Date of Patent: May 13, 2014Assignee: Societe de Prospection et d'Inventions Techniques SPITInventors: Pierre Cordeiro, Guy Jaillet, Christian Ricordi
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Patent number: 8690423Abstract: A sensor configured to detect exhaust gas temperature of an exhaust, the sensor including a housing and a sensing element at least partially disposed within the housing. A filler material, including a first media and at least one additional media, is disposed within the housing and at least partially surrounds the sensing element. The first media is configured to be stable in reducing atmospheres up to 800° C. and in oxidizing atmospheres up to 850° C. and the second media is configured to provide oxygen storage capacity and enhance chemical stability and/or oxygen entrapment.Type: GrantFiled: September 7, 2011Date of Patent: April 8, 2014Assignee: Stoneridge, Inc.Inventors: Zaid Alnaqash, Ken Kubasek, Ronald N. Landis
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Patent number: 8690422Abstract: The present invention provides a method for measuring the temperature of a motor for a hybrid electric vehicle. In preferred embodiments, the method of the present invention can preferably ensure the stability and reliability of motor control by extending the linearity of a temperature sensor attached to the motor within a required measurement range. The present invention preferably provides a method for measuring the temperature of a motor for a hybrid electric vehicle, in which a required measurement range of motor temperature is divided into high and low temperature ranges and a hardware gain circuit is divided into first and second gain blocks such that the first gain block measures the temperature of the high temperature range and the second gain block measures the temperature of the low temperature range.Type: GrantFiled: June 9, 2010Date of Patent: April 8, 2014Assignee: Hyundai Motor CompanyInventors: Chul Woo Kim, Bum Sik Kim, Tae Hwan Chung, Young Kook Lee, Jin Hwan Jung, Sang Hyeon Moon, Sung Kyu Kim, Jae Won Lee
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Patent number: 8672541Abstract: A temperature sensor (100) includes a heat-sensitive element (21) having a thermistor sintered-body (22), an insulating support (31), an insulation sheath (41) and a housing tube (11). The insulating support (31) is in contact with the rear end of the heat-sensitive element (21) and the insulation sheath (41) is in contact with the rear end of the insulating support (31). The housing tube (11) accommodates the heat-sensitive element (21), the insulating support (31) and the insulation sheath (41). The housing tube (11) includes a sheath accommodation portion (14) which accommodates the insulation sheath (41) and a distal accommodation portion (13). The distal accommodation portion (13) is located toward the distal end of the housing tube (11) with respect to the sheath accommodation portion (14), is smaller in outside diameter than the sheath accommodation portion (14), and accommodates at least half of the insulating support (31) as measured from the axially distal end of the insulating support (31).Type: GrantFiled: August 18, 2011Date of Patent: March 18, 2014Assignee: NGK Spark Plug Co., Ltd.Inventors: Masamichi Ito, Koji Matsuo, Satoshi Ishikawa
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Patent number: 8615875Abstract: A method of manufacturing a metal blading sector for low-pressure guide vanes of a turbomachine of which at least one blade includes an internal cavity configured to accept or communicate with a gas detection probe and at least one hole formed in the wall constituting a passage for gas from a low-pressure zone of the turbomachine toward the cavity and the probe through the fitting, into a casting mold, of a core corresponding to the cavity and the casting of a molten metal in the cavity of the casting mold. The core includes, for each hole for communication with the cavity, a protrusion penetrating the internal surface of the mold and constituting the only element holding the core in position in the casting mold.Type: GrantFiled: July 16, 2009Date of Patent: December 31, 2013Assignee: SnecmaInventors: Damien Alquier, Sebastien Digard Brou De Cuissart
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Publication number: 20130343421Abstract: An engine air system for charge flow temperature estimation includes a charge air cooler outlet temperature sensor configured to provide a first temperature signal, an exhaust gas recirculation outlet temperature sensor configured to provide a second temperature signal, and a control module configured to receive the first temperature signal and the second temperature signal. The control module includes a charge flow temperature estimation module configured to determine an the estimated charge flow temperature at an intake manifold temperature sensing position based on a combination of the first temperature signal multiplied by an estimated fresh air fraction and the second temperature signal multiplied by an exhaust gas recirculation fraction.Type: ApplicationFiled: June 22, 2012Publication date: December 26, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ognyan N. Yanakiev, Charles E. Solbrig, Ryle Maxson
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Patent number: 8608374Abstract: An outside air temperature (OAT) diagnostic system includes an ambient temperature monitoring module that receives (i) an OAT signal from an OAT sensor and (ii) an intake air temperature (IAT) signal from an IAT sensor of an engine. The ambient temperature monitoring module compares the OAT signal to an IAT signal and generates a first difference signal. A performance reporting module determines whether the OAT sensor is exhibiting a fault and generates an OAT performance signal based on the first difference signal.Type: GrantFiled: October 13, 2010Date of Patent: December 17, 2013Inventors: Wajdi B. Hamama, Layne K. Wiggins, Wenbo Wang, Robert J. Horner, John F. Van Gilder, Keith M. Lindsey, Jr., Robert D. Wagner
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Patent number: 8577514Abstract: A method for predicting an ambient temperature around a moving motor vehicle includes utilizing measured ambient temperatures and Newton's Cooling Law. A linear best fit line describing the time constant as a function of vehicle speed can be generated utilizing measured data. In use, the b values can be determined from the best fit line, and the b values can be utilized to provide a predicted or estimated ambient temperature before the measured temperatures drop to the ambient temperature.Type: GrantFiled: January 9, 2012Date of Patent: November 5, 2013Assignee: Ford Global Technologies, LLCInventors: Christos Kyrtsos, Michael Buckenmeyer, Kenneth Gerard Brown
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Patent number: 8568025Abstract: A temperature probe for use in oil-filled transformers comprises an optical fiber, a temperature sensitive member, and a protective cylindrical sheath. The optical fiber and the sensitive member are located in the protective sheath, and continuous longitudinal slit is defined along the length of the sheath to allow oil to flow therein. The optical fiber is mounted in and to the sheath using a bonding material and at a distance from the sheath. The sensitive member is adhesively mounted to the optical fiber, within the sheath, and at a distance thereof.Type: GrantFiled: October 17, 2008Date of Patent: October 29, 2013Inventors: Jean-François Meilleur, Jean-Noël Bérubé, Michel Plourde
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Patent number: 8556505Abstract: According to one embodiment, an apparatus for reading a temperature of a material includes a thermistor that is communicable in temperature sensing communication with the material. The apparatus also includes a first resistor that has a first resistance and a second resistor that has a second resistance that is lower than the first resistance. Additionally, the apparatus includes a switch that is selectively controllable to electrically couple the first resistor and second resistor to the thermistor in a low temperature mode. The switch also is selectively controllable to electrically couple the second resistor to the thermistor and electrically decouple the first resistor from the thermistor in a high temperature mode.Type: GrantFiled: September 20, 2010Date of Patent: October 15, 2013Assignee: Cummins IP, Inc.Inventors: Mark Akins, Elma Avdic, Matt Bower, Bruce Morehead
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Patent number: 8555651Abstract: A temperature measuring device is provided. The temperature measuring device measures the temperature in a combustion system, in particular for that of a combustion system of a gas turbine. The temperature measuring device is equipped with a heat absorbing element disposed in or on the combustion system, a measurement end disposed remotely from the combustion system having, disposed thereon, a temperature sensor measuring the temperature of the measurement end, a heat conducting element which connects the heat absorbing element to the measurement end in a thermally conductive manner, and a cooling device acting on the heat conducting element in a quantifiable manner for heat removal. A gas turbine having a temperature measuring device and method for directly determining the temperature in a combustion chamber are also provided.Type: GrantFiled: March 16, 2010Date of Patent: October 15, 2013Assignee: Siemens AktiengesellschaftInventors: Olaf Hein, Michael Minne
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Patent number: 8527241Abstract: A telemetry system for use in a combustion turbine engine (10) having a compressor (12), a combustor and a turbine (16) and includes a sensor (118) in connection with a turbine blade (111) or vane (23). A transmitter assembly (117) includes a telemetry transmitter circuit/transceiver may be affixed on a turbine blade (111) or seal plate (115) proximate the turbine blade with a first connecting material (119) deposited on the turbine blade (111) for routing electronic data signals, indicative of a condition of the turbine blade (111), from the sensor (118) to the telemetry transmitter circuit/transceiver. An induction power system for powering the telemetry transmitter circuit/transceiver may include a rotating data antenna (116) affixed to the seal plate (115) with an electrical connection (122) between the telemetry transmitting circuit/transceiver for routing electronic data signals from the telemetry transmitter circuit/transceiver to the rotating data antenna (119).Type: GrantFiled: February 1, 2011Date of Patent: September 3, 2013Assignee: Siemens Energy, Inc.Inventors: David J. Mitchell, Ramesh Subramanian, Cora Schillig, Anand A. Kulkarni, Vinay Jonnalagadda, Bulent Acar, Sankar Nellian, James P. Williams, Edward R. Roesch
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Publication number: 20130223478Abstract: A temperature sensor system includes a temperature sensor, a cable having an end coupled to the temperature sensor, and a stop flange coupled to the cable. The temperature sensor system further includes a vibration reducing and/or modifying sleeve positioned against the stop flange. The sleeve includes a body portion defining a through passage configured to receive and retain at least a portion of the cable. The sleeve is configured to provide stability and reduce vibrational stress to the temperature sensor system. The sleeve is configured to be added to the temperature sensor system during assembly of the system and/or to be added after the temperature sensor system is fully assembled.Type: ApplicationFiled: August 23, 2012Publication date: August 29, 2013Applicant: STONERIDGE, INC.Inventors: Ronald N. Landis, Douglas I. Obenour, Robert J. Sparks
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Patent number: 8515710Abstract: Methods and systems for detecting faults in temperature sensors on engine systems provided with equipment for treatment of combustion products of an exhaust effluent stream during engine operation include determining sensor faults from differences in temperature between sensors present in such systems over time. Estimated exhaust gas temperatures may be compared against real time temperature measurements to arrive at a diagnostic residual value representing the difference between a modeled value and measured value, and deviation of the measured value from the modeled value is used to indicate a sensor fault.Type: GrantFiled: March 16, 2009Date of Patent: August 20, 2013Assignee: GM Global Technology Operations LLCInventors: Yue-Yun Wang, Yongsheng He
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Publication number: 20130182743Abstract: An oil temperature sensor mounting structure for an internal combustion engine is provided which is capable of improving appearance while protecting an oil temperature sensor with a simple structure and further capable of miniaturizing and downsizing a vehicle body. In the oil temperature sensor mounting structure for an internal combustion engine in which an oil temperature sensor for detecting temperature of oil is mounted to a cylinder portion protruding upwardly from a crankcase, the cylinder portion has an upper portion laterally covered with a body cover. A head cover is provided on a cylinder head constituting the upper portion of the cylinder portion. The head cover has an upper portion formed with a shoulder. The shoulder is located below a periphery thereof and protrudes laterally. The oil temperature sensor is mounted to the shoulder inwardly in a vehicle width direction of the body cover.Type: ApplicationFiled: December 12, 2012Publication date: July 18, 2013Applicant: HONDA MOTOR CO., LTDInventor: HONDA MOTOR CO., LTD
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Publication number: 20130167554Abstract: A method of assembling a temperature sensing device for a gas turbine engine is provided. The method includes providing a temperature sensor and providing a housing configured to envelop the temperature sensor. The method further includes mounting the temperature sensor within the housing such that a portion of the temperature sensor is disposed outside of the housing and such that the housing is configured to receive a flow of cooling air.Type: ApplicationFiled: December 30, 2011Publication date: July 4, 2013Inventor: John Patrick Parsons
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Patent number: 8471702Abstract: A method for monitoring the health of a compressor of a gas turbine is disclosed. The method includes receiving a plurality of turbine data points, wherein the plurality of turbine data points may include one or more operating parameters, at least one of a computer discharge temperature (CTD), and one or more performance parameters. The plurality of turbine data points may be categorized based on the one or more operating parameters. A statistical variability measure of at least one of the CTD and the one or more performance parameters may be computed for each of the plurality of bands. An alarm indicator may be computed based on the at least one statistical variability measure. The method may also include combining two or more of the operating parameters, the CTD and the performance parameters using sensor fusion techniques. The alarm indicator may be computed based on the combined parameters.Type: GrantFiled: December 22, 2010Date of Patent: June 25, 2013Assignee: General Electric CompanyInventors: Ravi Yoganatha Babu, Vinay Bhaskar Jammu, Achalesh Kumar Pandey, Sudhanshu Rai
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Patent number: 8469588Abstract: A system includes a radiation detector array directed toward a fluid flow into a compressor. The radiation detector array is configured to output a signal indicative of a two-dimensional temperature profile of the fluid flow. The system also includes a controller communicatively coupled to the radiation detector array. The controller is configured to detect a temperature variation across the fluid flow based on the signal.Type: GrantFiled: May 3, 2010Date of Patent: June 25, 2013Assignee: General Electric CompanyInventors: Rahul Jaikaran Chillar, Adil Ansari
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Patent number: 8439630Abstract: The monitoring system for a gas turbine engine including a viewing tube assembly having an inner end and an outer end. The inner end is located adjacent to a hot gas flow path within the gas turbine engine and the outer end is located adjacent to an outer casing of the gas turbine engine. An aperture wall is located at the inner end of the viewing tube assembly and an optical element is located within the viewing tube assembly adjacent to the inner end and is spaced from the aperture wall to define a cooling and purge chamber therebetween. An aperture is defined in the aperture wall for passage of light from the hot gas flow path to the optical element. Swirl passages are defined in the viewing tube assembly between the aperture wall and the optical element for passage of cooling air from a location outside the viewing tube assembly into the chamber, wherein swirl passages effect a swirling movement of air in a circumferential direction within the chamber.Type: GrantFiled: March 19, 2010Date of Patent: May 14, 2013Assignee: Siemens Energy, Inc.Inventors: Dennis H. Lemieux, Jan P. Smed, James P. Williams, Vinay Jonnalagadda
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Patent number: 8419270Abstract: A test facility includes a heat source to thermally load a test object being mechanically loaded by rotation imposed by a spin test rig. The heat source can be a quartz lamp controlled to provide a thermal load with a differing phase than the mechanical load. Testing cycles can be run for the test object, with impingement cooling permitting the removal of the thermal load between cycles. The test facility emulates operating conditions in a gas turbine engine to impose realistic thermal and mechanical fatigue stress on the test component.Type: GrantFiled: June 22, 2009Date of Patent: April 16, 2013Assignee: Test Devices, Inc.Inventors: Paul Wawrzonek, H. Eric Sonnichsen, Robert L. Murner
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Publication number: 20130084193Abstract: A motor driven compressor apparatus includes a first stage compressor, a second stage compressor, an electric motor disposed between and coupled to the first stage compressor and the second stage compressor, thermal sensors disposed on the electric motor and configured to externally measure internal temperatures of the electric motor or internal bearings or components, and an external controller coupled to the electric motor and to the thermal sensors, and configured to at least one of slow down a speed of the electric motor and shut down the electric motor in response to at least one of an excess of a predetermined internal temperature and a rate of internal temperature change.Type: ApplicationFiled: October 4, 2011Publication date: April 4, 2013Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Craig M. Beers, John H. Paliulis
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Patent number: 8388224Abstract: An assembly for sensing temperature in a gas turbine engine includes a first array of RTDs connected in parallel, a second array of RTDs connected in parallel, and a circuit electrically connected to the first and second arrays. The circuit determines an approximate temperature of a medium as a function of resistance of the first and second arrays.Type: GrantFiled: August 19, 2010Date of Patent: March 5, 2013Assignee: Hamilton Sundstrand CorporationInventor: Thaddeus J. Zebrowski
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Publication number: 20130051426Abstract: A device for measuring a compressor inlet temperature in a primary stream flow passage of a bypass turbojet. The device includes an airtight hollow structure forming a connection arm of an intermediate casing of the turbojet and configured to pass radially through a flow passage for the primary stream and a flow passage for a secondary stream of the turbojet, the connection arm including at least one inlet air orifice opening out into the primary stream flow passage at an inlet of a compressor and at least one air outlet orifice leading to a zone of the turbojet in which surrounding pressure is less than pressure in the primary stream flow passage at the inlet of the compressor; and a temperature probe having its sensitive element arranged inside the connection arm.Type: ApplicationFiled: April 5, 2011Publication date: February 28, 2013Applicant: SNECMAInventors: Bruno Robert Gaully, Thierry Poix, Maurice Georges Vernochet
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Publication number: 20120307863Abstract: An exhaust gas temperature detection sensor is arranged at a predetermined position outside a muffler, or at a predetermined position outside an exhaust pipe constituting an exhaust gas flow passage on a more downstream side than the muffler in an exhaust direction. The sensor detects that an atmosphere temperature at the predetermined position outside the muffler has reached a predetermined temperature based on an increase in a temperature inside the muffler, or detects that an atmosphere temperature at the predetermined position outside the exhaust pipe has reached a predetermined temperature based on an increase in a temperature of an exhaust gas inside the exhaust pipe.Type: ApplicationFiled: March 15, 2012Publication date: December 6, 2012Applicant: KUBOTA CORPORATIONInventors: Hiroyuki TADA, Masato ASAHARA, Yoshihiro UEDA, Hideki AOKI, Akira MINOURA
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Patent number: 8322920Abstract: In a method for ascertaining a temperature of a sheathed-element glow plug in an internal combustion engine, a temperature difference between the temperature of a glow plug heater inside the sheathed-element glow plug and a temperature at an arbitrary location on the sheathed-element glow plug is determined as a function of at least one operating parameter of the internal combustion engine and/or at least one operating parameter of the sheathed-element glow plug. The temperature of the sheathed-element glow plug is ascertained from a temperature value represented by a measured value, and from the determined temperature difference.Type: GrantFiled: November 1, 2010Date of Patent: December 4, 2012Assignee: Robert Bosch GmbHInventors: Bernd Rapp, Sascha Joos
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Publication number: 20120294331Abstract: A sensor including a tube having a small-diameter portion loosely inserted into a tube insertion hole of an annular mounting fixture and a large-diameter portion having a diameter larger than an inside diameter of the tube insertion hole. A flow path is formed, so that when the large-diameter portion of the tube is locked on the rear end of the tube insertion hole, a rear end of a gap, defined between an inner circumferential surface of the tube insertion hole and an outer circumferential surface of the small-diameter portion of the tube, remains open. Further, the inner circumferential surface of the tube insertion hole and the outer circumferential surface of the small-diameter tubular portion of the tube are brazed together with a brazing filler which flows into the gap.Type: ApplicationFiled: May 21, 2012Publication date: November 22, 2012Applicant: NGK SPARK PLUG CO., LTD.Inventors: Satoshi MOGARI, Masamichi ITO, Satoshi ISHIKAWA
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Patent number: 8303174Abstract: A temperature sensor plausibility diagnosis unit performs plausibility diagnosis of a temperature sensor disposed inside a storage tank in an exhaust purification apparatus of an internal combustion engine that delivers an additive inside the storage tank to an exhaust pipe upstream of a reduction catalyst and selectively reduces and purifies NOx in the exhaust. The temperature sensor plausibility diagnosis unit includes an additive heat capacity calculating portion that calculates the heat capacity of the additive, a heat quantity variation calculating portion that calculates an increase or decrease in the quantity of heat that the additive receives, and a plausibility diagnosing portion that determines the plausibility of the temperature sensor by comparing an estimated temperature course of the additive estimated from the heat capacity of the additive and the increase or decrease in the quantity of heat with a sensor temperature course of the additive detected by the temperature sensor.Type: GrantFiled: October 31, 2008Date of Patent: November 6, 2012Assignee: Bosch CorporationInventor: Hiroyuki Kasahara
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Patent number: 8292497Abstract: Cloud point monitoring systems for determining a cloud point temperature value for diesel fuel are provided. In one exemplary embodiment, a cloud point monitoring system receives diesel fuel in the tubular conduit and propagates light through the diesel fuel. The cloud point monitoring system further determines a cloud point temperature value indicative of a cloud point of the diesel fuel based on a light intensity level of the light that has propagated through cooled diesel fuel.Type: GrantFiled: July 16, 2008Date of Patent: October 23, 2012Assignee: GM Global Technology Operations LLCInventors: Bryan K. Pryor, William C. Albertson, Mike M. McDonald
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Patent number: 8282798Abstract: A gas probe, in particular a lambda probe for the analysis of exhaust gases from a mobile internal combustion engine, includes at least one protective device, at least partly surrounding a sensitive sensor element of the gas probe, which comes into contact with a gas. The at least one protective device includes a gas contact face which at least partly has a hygroscopic surface.Type: GrantFiled: October 10, 2006Date of Patent: October 9, 2012Assignees: EMITEC Gesellschaft fuer Emissionstechnologie mbH, Audi AGInventors: Rolf Brück, Bernhard Pfalzgraf, Bodo Odendall
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Publication number: 20120163412Abstract: An apparatus for measuring temperature comprises a housing and an actuator pressure sealed to the housing and having a shaft. The actuator is configured to be in pressure communication with a volume of gas or liquid. Upon a change in pressure, the actuator is displaced at least partially in the axial direction. A sensor detects axial displacement of a magnetically encoded target upon the change in pressure in the volume. A device for measuring pressure and temperature in an engine cylinder comprises a valve in pressure communication with an engine cylinder. The valve stem has a magnetic coding located adjacent a sensor. Axial displacement of the stem under cylinder pressure and temperature changes are detected.Type: ApplicationFiled: March 5, 2012Publication date: June 28, 2012Applicant: Eaton CorporationInventor: Dale Arden Stretch
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Patent number: 8197131Abstract: Until the accuracy in calculation of an estimated oil temperature value which is calculated by means of a heat dissipation amount map reaches a predetermined level, an ECU determines, when a transmission oil temperature well exceeds a predetermined temperature after the engine start, whether or not an oil temperature sensor fails. When it is determined that the oil temperature sensor is normal, the ECU uses the detected oil temperature value to learn about the heat dissipation map. When the accuracy in calculation of the estimated oil temperature value reaches the predetermined level through the learning about the heat dissipation amount map, the ECU determines whether or not the oil temperature sensor fails based on the divergence of the detected oil temperature value relative to the estimated oil temperature value.Type: GrantFiled: July 17, 2009Date of Patent: June 12, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kei Kitajima
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Patent number: 8192081Abstract: A temperature sensor including: a temperature sensing element (102) having a temperature sensing unit (103) and a pair of device electrode wires (104); a sheath member (106) having a sheath wire (108) connected at a junction (110) to at least one of the device electrode wires and a sheath outer pipe (107) retaining the sheath wire in an insulating material (114); an inner tube (112) which has a bottomed cylindrical shape; and a cylindrical outer tube (120) having an open end, covering the inner tube such that the open end is located at a front end side of the junction and in a region to the rear end side of or aligned with the front end of the inner tube, and being spaced from the inner tube at the front end side of the junction.Type: GrantFiled: May 8, 2009Date of Patent: June 5, 2012Assignee: NGK Spark Plug Co., Ltd.Inventors: Tatsuya Suzuki, Mitsunori Oi, Takashi Maeda, Norimichi Saito, Toshinori Nishi, Go Hanzawa, Takeshi Morita
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Patent number: 8192078Abstract: A device for recording the pressure and the temperature in an intake manifold of an internal combustion engine, a pressure sensor and a temperature sensor being situated in a common housing, and an evaluation of a signal of the temperature sensor being provided outside the housing. An EMC protective circuit is provided in this context, which is integrated into the housing and/or is situated on the housing, and is electrically connected to the temperature sensor.Type: GrantFiled: June 26, 2009Date of Patent: June 5, 2012Assignee: Robert Bosch GmbHInventors: Jan Gebauer, Masoud Habibi, Markus Reinhard
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Patent number: 8162536Abstract: A method of manufacturing an exhaust temperature sensor is disclosed. It includes forming a green ceramic substrate; and printing an electrical circuit on the green ceramic substrate. The method then contemplates trimming the electrical circuit to a predetermined resistance prior to firing the green ceramic. Finally, the method contemplates firing the green ceramic substrate with the electrical circuit thereon.Type: GrantFiled: December 15, 2008Date of Patent: April 24, 2012Assignee: Delphi Technologies, Inc.Inventors: Charles S. Nelson, Raymond L. Bloink
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Patent number: 8158428Abstract: A system for detecting defects in a combustion duct of a combustion system of a combustion turbine engine while the combustion turbine engine operates, wherein the combustion duct comprises a hot side, which is exposed to combustion gases and, opposing the hot side, a cold side. In one embodiment, the system comprises: a photodetector aimed at the cold side of the combustion duct, the photodetector being configured to detect a visible change to the cold side of the combustion duct.Type: GrantFiled: December 30, 2010Date of Patent: April 17, 2012Assignee: General Electric CompanyInventors: Pradeep Aadi Gopala Krishna, Dullal Ghosh, Saurav Dugar, Matthew Paul Berkebile, Anthony Wayne Krull
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Publication number: 20120082181Abstract: A sensor configured to detect exhaust gas temperature of an exhaust, the sensor including a housing and a sensing element at least partially disposed within the housing. A filler material, including a first media and at least one additional media, is disposed within the housing and at least partially surrounds the sensing element. The first media is configured to be stable in reducing atmospheres up to 800° C. and in oxidizing atmospheres up to 850° C. and the second media is configured to provide oxygen storage capacity and enhance chemical stability and/or oxygen entrapment.Type: ApplicationFiled: September 7, 2011Publication date: April 5, 2012Inventors: Zaid Alnaqash, Ken Kubasek, Ronald N. Landis
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Publication number: 20120051396Abstract: On the basis of a correlation between exhaust gas temperature detected by an exhaust gas temperature sensor and exhaust gas temperature estimated according to an engine operating condition, it is detected whether or not abnormality occurs in the exhaust gas temperature sensor. Namely, when a change characteristic of the detected exhaust gas temperature follows a change characteristic of the estimated exhaust gas temperature, it is determined that the exhaust gas temperature sensor is normal. On the other hand, when the change characteristic of the detected exhaust gas temperature does not follow that of the estimated exhaust gas temperature, it is determined that the exhaust gas temperature sensor is abnormal.Type: ApplicationFiled: November 4, 2011Publication date: March 1, 2012Applicant: NISSAN DIESEL MOTOR CO., LTD.Inventors: Hideki MATSUNAGA, Toshikazu KATOU
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Publication number: 20120044969Abstract: An assembly for sensing temperature in a gas turbine engine includes a first array of RTDs connected in parallel, a second array of RTDs connected in parallel, and a circuit electrically connected to the first and second arrays. The circuit determines an approximate temperature of a medium as a function of resistance of the first and second arrays.Type: ApplicationFiled: August 19, 2010Publication date: February 23, 2012Applicant: HAMILTON SUNDSTRAND CORPORATIONInventor: Thaddeus J. Zebrowski
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Publication number: 20120020384Abstract: A fuel temperature determining apparatus for an internal combustion is provided which determines the temperature of fuel delivered to a fuel injector without use of a pressure sensor. The fuel temperature determining apparatus includes a pressure sensor that measures the pressure of fuel delivered to the fuel injector and works to analyze an output of the pressure sensor to determine a cycle of a pressure pulsation created in the fuel. The fuel temperature determining apparatus also calculates the temperature of the fuel delivered to the fuel injector based on the cycle of the pressure pulsation.Type: ApplicationFiled: July 22, 2011Publication date: January 26, 2012Applicant: DENSO CORPORATIONInventor: Naoki MIKAMI
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Publication number: 20120014410Abstract: A catalyst overheat prevention apparatus has a temperature obtaining portion that estimates a convergence temperature of a catalyst provided in the exhaust system of an internal combustion engine and the present temperature of the catalyst. The catalyst overheat prevention apparatus also has a fuel increment calculation portion, a comparison portion, a correction portion, and a fuel increment setting portion, which are used to execute OT fuel increase control when the convergence temperature and present catalyst temperature obtained by the temperature obtaining portion are equal to or higher than an OT determination temperature. The catalyst overheat prevention apparatus also has a present temperature correction portion that corrects the present catalyst temperature to be equal to the OT determination temperature when the present catalyst temperature is equal to or higher than the OT determination temperature and the convergence temperature is equal to the OT determination temperature.Type: ApplicationFiled: July 8, 2011Publication date: January 19, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiro Kachi, Shinya Kondo
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Patent number: 8087824Abstract: An aircraft brake assembly (10) includes a torque tube (16) having a passageway (18) for receiving a temperature probe, the passageway (18) having a wall and a width (W) and a length, and a temperature probe (20) having a width (w) less than the passageway width (W) and at least one angled portion (34, 36) where a centerline (44) of the temperature probe (20) changes direction. The temperature probe (20) has a lateral offset (L) greater than the passageway width (W) so that the probe (20) cannot be inserted into the passageway (18) without flexing it at the at least one angled portion (34, 36), and the temperature probe (20) is mounted in the passageway (18) and held in a flexed state by the passageway wall. Also a method of mounting a temperature probe in a brake assembly.Type: GrantFiled: July 26, 2007Date of Patent: January 3, 2012Assignee: Honeywell International Inc.Inventor: Douglas S. Bingham
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Patent number: 8075179Abstract: A procedure for a reasonability check of the signal of a temperature sensor that is arranged in a reducing tank, in particular a HWL-tank, is thereby characterized, in that the tank level is detected by a tank level sensor that is arranged almost at the same filling level position as the temperature sensor, in that the tank level sensor signal is compared to the temperature sensor signal and then, if default tank level sensor signals correlate within default limits with default temperature sensor signal values, a functioning temperature sensor and/or a functioning tank level sensor are indicated.Type: GrantFiled: April 28, 2009Date of Patent: December 13, 2011Assignee: Robert Bosch GmbHInventors: Buelent Barcin, Marc Chaineux, Andreas Wagner
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Publication number: 20110271659Abstract: A temperature sensor includes temperature detecting means and at least one of a catalyst and an adsorbent applied to the surface of the temperature detecting means. At least one of the catalyst and the adsorbent catalyzes an exothermic reaction of a reactant in gas on the temperature detecting means. A temperature that is increased by the exothermic reaction is detected by the temperature detecting means. The catalytic efficiency for the exothermic reaction of at least one of the catalyst and the adsorbent is reduced by sulfur poisoning. The temperature sensor is disposed upstream of an exhaust purification system. Accordingly, it is determined that the temperature sensor is subjected to sulfur poisoning if the temperature detected by the temperature sensor is below a prescribed temperature.Type: ApplicationFiled: January 8, 2010Publication date: November 10, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuhiro Umemoto, Hiromasa Nishioka, Yoshihisa Tsukamoto, Junichi Matsuo, Takamitsu Asanuma, Takao Fukuma, Kouhei Yoshida, Daichi Imai, Yuka Nakata
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Patent number: 8042998Abstract: A method for detecting a fault of an oil temperature sensor of an automatic transmission by using a determining means for detecting the fault of the oil temperature sensor. The method includes any one or more of the steps of 1) determining the fault of the oil temperature sensor by comparing minimum and maximum output values of the oil temperature sensor in every driving mode, 2) determining the fault of the oil temperature sensor by detecting abnormal excessive increase and decrease of the oil temperature for a specific duration, 3) determining the fault the oil temperature sensor in the stuck state in the driving mode when transmission oil temperature increases, and 4) determining the fault of the oil temperature sensor by detecting the oil temperature exceeding a predetermined temperature based on the time when the engine is left at a stopped state.Type: GrantFiled: September 7, 2004Date of Patent: October 25, 2011Assignee: Kefico CorporationInventors: Young-Sun Choi, Sung-Teag Cho, Yoon-Sang Yoon, Hyong-Kyu Kim, Jang-Sun Sim
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Patent number: 8033722Abstract: A thin-film thermocouple (12) is disclosed for use with a gas turbine component. The thermocouple may be formed on a non-planar substrate (22) having formed thereon an electrically insulating layer (34) capable of maintaining its insulating properties at gas turbine operating temperatures. A first thermocouple leg (26) made of pure platinum is then deposited on the dielectric layer (34). A second thermocouple leg (28) made of another pure metal or a transparent ceramic oxide is also formed on the dielectric layer (34) wherein the first and second thermocouple legs make ohmic contact at a first end of each leg to form a hot junction (30) for conversion of heat into an electrical signal. The thermocouple may be deposited on a surface of a thermal barrier coating or between a thermal barrier coating and an underlying metal substrate.Type: GrantFiled: December 3, 2008Date of Patent: October 11, 2011Assignee: Siemens Energy, Inc.Inventors: Anand A. Kulkarni, David J. Mitchell, Edward R. Roesch
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Publication number: 20110155113Abstract: The invention has an object to provide a device for determining activation of an exhaust gas sensor which accurately determines a time at which an exhaust gas sensor output is usable, and can suppress an adverse effect caused by use of the exhaust gas sensor output including a large effect of adsorbed species. A time is measured from a time point when a temperature of an air-fuel ratio sensor 48 reaches a predetermined temperature T1, while the air-fuel ratio sensor 48 is warmed up. When the time becomes a predetermined target holding time Te or more, the air-fuel ratio sensor 48 is determined as being in an activation state. The target holding time Te is preferably set at such a length that all adsorbed species adsorbed onto the air-fuel ratio sensor 48 are desorbed, and areas around a sensor element section 50 are completely replaced with an exhaust gas.Type: ApplicationFiled: October 1, 2009Publication date: June 30, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Keiichiro Aoki
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Publication number: 20110134959Abstract: The present invention provides a method for measuring the temperature of a motor for a hybrid electric vehicle. In preferred embodiments, the method of the present invention can preferably ensure the stability and reliability of motor control by extending the linearity of a temperature sensor attached to the motor within a required measurement range. The present invention preferably provides a method for measuring the temperature of a motor for a hybrid electric vehicle, in which a required measurement range of motor temperature is divided into high and low temperature ranges and a hardware gain circuit is divided into first and second gain blocks such that the first gain block measures the temperature of the high temperature range and the second gain block measures the temperature of the low temperature range.Type: ApplicationFiled: June 9, 2010Publication date: June 9, 2011Applicant: HYUNDAI MOTOR COMPANYInventors: Chul Woo Kim, Bum Sik Kim, Tae Hwan Chung, Young Kook Lee, Jin Hwan Jung, Sang Hyeon Moon, Sung Kyu Kim, Jae Won Lee
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Publication number: 20110134960Abstract: In a method for ascertaining a temperature of a sheathed-element glow plug in an internal combustion engine, a temperature difference between the temperature of a glow plug heater inside the sheathed-element glow plug and a temperature at an arbitrary location on the sheathed-element glow plug is determined as a function of at least one operating parameter of the internal combustion engine and/or at least one operating parameter of the sheathed-element glow plug. The temperature of the sheathed-element glow plug is ascertained from a temperature value represented by a measured value, and from the determined temperature difference.Type: ApplicationFiled: November 1, 2010Publication date: June 9, 2011Inventors: Bernd Rapp, Sascha Joos