| Patents for G01L 23 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid (3,845) |
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| 11/26/2008 | CN100437052C Knock sensor |
| 11/25/2008 | US7454954 Knocking presence evaluation circuit for an internal combustion engine, knocking identification and control system and corresponding pressure signal processing method |
| 11/20/2008 | WO2008139113A2 Method for estimating the level of ethanol in a fuel |
| 11/19/2008 | EP1991849A1 High temperature pressure sensor element, particularly for measuring pressures inside jet engines, method for the production thereof and component for jet engines |
| 11/13/2008 | US20080276689 Knocking detecting device for an internal combustion engine |
| 11/13/2008 | US20080276688 Signal processing method for an engine knock signal |
| 11/12/2008 | EP1989524A1 Pressure gauge |
| 11/12/2008 | EP1989485A1 Pressure measuring device |
| 11/12/2008 | CA2688289A1 Knocking determination device and knocking determination method for internal combustion engine |
| 11/11/2008 | US7448254 Method and apparatus for measuring knocking in internal combustion engines |
| 11/06/2008 | US20080271519 Engine Knock Detection System and Method |
| 11/05/2008 | EP1988378A1 On-Cylinder Combustion Sensor |
| 11/05/2008 | EP1988277A2 Improvements Relating to Combustion Engine Technology |
| 10/30/2008 | WO2008128829A1 Method and device for measuring pressure |
| 10/30/2008 | US20080264150 Internal combustion engine knock determination device |
| 10/30/2008 | US20080264149 System and method for engine sound calibration |
| 10/30/2008 | DE102008014672A1 Klopfsystem mit Detektionszonen Knock detection system with zones |
| 10/30/2008 | DE102008000521A1 Ignition diagnosis system for automotive internal combustion engine, has additive portion to superimpose knock-amplified ionization signal with in-cylinder ionization signal to output knock-enhanced ionization signal |
| 10/23/2008 | US20080257018 Knock detection apparatus for internal combustion engine |
| 10/23/2008 | DE102007018817A1 Verfahren und Vorrichtung zur Druckmessung Method and apparatus for pressure measurement |
| 10/22/2008 | EP1609971B1 Throttle body |
| 10/21/2008 | US7440839 Method and associated device for sensing the air/fuel ratio of an internal combustion engine |
| 10/16/2008 | WO2008122842A1 Improvements in or relating to diagnostics of a capacitive sensor |
| 10/16/2008 | DE102005061851B4 Klopferkennungsvorrichtung für einen Verbrennungsmotor Knock detection device for a combustion engine |
| 10/09/2008 | WO2008024663A3 Combustion knock detection and control through statistical characterization of knock levels |
| 10/08/2008 | EP1977164A1 Pencil-type glow plug |
| 10/02/2008 | US20080236264 Device and Method for Determining Trouble of Cylinder Pressure Sensor |
| 09/25/2008 | US20080229815 Sensor system for measuring pressure |
| 09/25/2008 | US20080229806 Knock system with detection zones |
| 09/24/2008 | EP1972780A1 Vehicle diagnosis system and method |
| 09/24/2008 | EP1971843A1 Device and method for determining knocking of internal combustion engine |
| 09/24/2008 | CN101271030A Knock system with detection zones |
| 09/18/2008 | DE102008009429A1 Abdichtung für eine Glühkerze Seal for a glow plug |
| 09/18/2008 | DE102007012769A1 Internal-combustion engine mechanism operating condition recognizing method for impact sound sensor i.e. knocking sensor, involves monitoring frequency signal of sensor on occurrence of frequency spectrum to perform error operation |
| 09/18/2008 | DE102007012060A1 Sensoranordnung zur Druckmessung Sensor arrangement for measuring pressure |
| 09/17/2008 | EP1970551A2 Spark ignition type internal combustion engine |
| 09/16/2008 | US7424820 Knocking state determination device |
| 09/12/2008 | WO2008107007A1 Device and method for processing pinking signals of an internal combustion engine, with reduced influence of interfering noise |
| 09/11/2008 | DE102008006584A1 Verfahren und Vorrichtung zur Überwachung eines Ansaugluftfilters Method and apparatus for monitoring an intake air filter |
| 09/10/2008 | EP1967834A2 Ignition plug with a pressure sensing device |
| 09/10/2008 | EP1967833A1 Sensor apparatus responsive to pressure and temperature within a vessel |
| 09/10/2008 | EP1966579A1 Apparatus for measuring the cylinder internal pressure of internal combustion engines |
| 09/10/2008 | EP1966538A1 Pencil-type glow plug |
| 09/04/2008 | DE19734680B4 Verfahren zur zylinderselektiven Dichtigkeitsprüfung der Brennräume von Brennkraftmaschinen A method for cylinder-selective leak test of the combustion chambers of internal combustion engines |
| 09/03/2008 | CN101258394A Compensation apparatus and operation method thereof |
| 09/03/2008 | CN101258393A Device for pressure measurement |
| 08/26/2008 | US7418336 Method for internal combustion engine control using pressure ratios |
| 08/20/2008 | EP1959122A1 Internal combustion engine knocking judging device and knocking judging method |
| 08/19/2008 | US7415347 Combustion knock detection and control through statistical characterization of knock levels |
| 08/19/2008 | US7412874 Internal combustion engine knock determination device |
| 08/13/2008 | EP1956231A2 Knock control method |
| 08/13/2008 | EP1955038A1 A method and apparatus for detecting engine knock |
| 08/13/2008 | EP1955030A2 Method for analyzing the noise of an internal combustion engine |
| 08/07/2008 | DE102007003562A1 Cylinder pressure measuring device for e.g. diesel engine, has carrying sleeve attached to strain gauges, where elongation of sleeve and elongation of gauges produces elongation of tie rod, which is produced by cylinder pressure |
| 08/06/2008 | CN201096581Y Engine borehole type cylinder press sensor mounting sealing structure |
| 07/31/2008 | WO2008090312A1 In- cylinder pressure measurement system |
| 07/31/2008 | WO2008090100A1 Engine cylinder head mainly for a diesel engine, diesel engine fitted with said cylinder head, and assembly comprising such engine with an engine starting device |
| 07/31/2008 | DE20321570U1 Einrichtung zur Kompensation des Temperaturfehlers vom Hochtemperaturdrucksensor Means for compensating for the temperature error of the high-temperature pressure sensor |
| 07/31/2008 | DE19703891B4 Verfahren und Vorrichtung zur Erkennung einer Leckage Method and apparatus for detection of a leak |
| 07/31/2008 | DE102007003377A1 Cylinder pressure measuring device for e.g. diesel engine, has sleeve with sections that are attached to components, such that length change of rod causes movement of sections and components, where sections are separated from each other |
| 07/30/2008 | EP1950108A1 Method and apparatus for securing car against theft via wireless sensor |
| 07/30/2008 | EP1948924A1 Fuel injection system for internal combustion engines |
| 07/30/2008 | CN101231205A Air cylinder pressure measuring device |
| 07/30/2008 | CN101231204A Cylinder pressure measuring device |
| 07/24/2008 | US20080173070 Method For Correcting a Measured Cylinder Pressure of an Internal Combustion Engine |
| 07/17/2008 | DE10009606B4 Klopferfassungsvorrichtung für einen Verbrennungsmotor Knock detection device for a combustion engine |
| 07/15/2008 | US7398674 Device for pressure measurement, particularly in a combustion chamber of an internal combustion engine |
| 07/10/2008 | WO2008080727A1 Piezoelectric knock sensor |
| 07/10/2008 | DE10064088B4 Klopfsteuervorrichtung für eine Brennkraftmaschine A knock control device for an internal combustion engine |
| 07/09/2008 | EP1942326A1 Pressure measurement device for a gas turbine |
| 07/09/2008 | CN201083582Y Integration type combustion pressure sensor for IC engine |
| 07/03/2008 | DE102006062010A1 Sensor i.e. broad-band sensor, for fastening to internal combustion engine, has sensor unit determining mechanical vibrations released by engine on plate, and elongation sensor unit determining plate's elastic deformation |
| 07/02/2008 | EP1938072A1 Knock determining apparatus |
| 07/02/2008 | CN101213435A Knocking determination device for internal combustion engine |
| 07/02/2008 | CN101213434A Knocking determination device for internal combustion engine |
| 07/02/2008 | CN101213433A 爆震状态判定设备 Knocking state determination device |
| 07/02/2008 | CN101213432A 爆震状态判定设备 Knocking state determination device |
| 07/02/2008 | CN100398802C Signal processor |
| 06/26/2008 | WO2008074547A1 Pressure gauge |
| 06/26/2008 | WO2008055377A3 Pressure sensor for measurements in hot, dynamic processes |
| 06/26/2008 | DE102006041124B4 Glühkerze mit eingebautem Drucksensor Glow plug with integrated pressure sensor |
| 06/25/2008 | CN101208588A Device and method for determining knocking of internal combustion engine |
| 06/19/2008 | WO2008071022A1 Adapter for pressure sensors |
| 06/19/2008 | DE102006059693A1 Druckmesseinrichtung Pressure measuring device |
| 06/19/2008 | DE102006058285A1 Pressure chamber, especially a motor combustion chamber, has a transparent ring-shaped mantle section tensed by fluid pressure for visual monitoring of combustion and chemical reactions |
| 06/12/2008 | WO2008069734A1 Arrangement, method and computer program for milking machine testing by studying vacuum in working mode |
| 06/12/2008 | WO2008068101A1 Pressure-measuring device |
| 06/12/2008 | DE102006057627A1 Druckmesseinrichtung Pressure measuring device |
| 06/05/2008 | WO2008043594A3 Pressure gauge |
| 06/05/2008 | DE102005051817B4 Druckmessglüheinrichtung, insbesondere Druckmessglühkerze Druckmessglüheinrichtung, especially pressure-measuring |
| 06/04/2008 | EP1927835A2 Combustion pressure sensor |
| 05/28/2008 | EP1924831A1 Knock determination apparatus and method for engines |
| 05/28/2008 | CN101189499A Internal combustion engine knock determination device |
| 05/21/2008 | EP1922535A2 Vehicle exhaust dilution and dispersion device |
| 05/21/2008 | EP1922534A1 Device for pressure measurement |
| 05/21/2008 | CN101184980A Internal combustion engine knock determination device |
| 05/20/2008 | US7375314 Self-cleaning optical sensor |
| 05/15/2008 | WO2008055377A2 Pressure sensor for measurements in hot, dynamic processes |
| 05/15/2008 | DE19960328B4 Schwingungsaufnehmer mit einer Druckhülse Vibration sensor with a pressure sleeve |
| 05/15/2008 | DE19536168B4 Verfahren und Einrichtung zur automatischen Ermittlung der Klopfgrenze eines Verbrennungsmotors auf einem Prüfstand Method and device for automatically determining the knock limit an internal combustion engine on a test bench |