| 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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| 06/11/2009 | WO2009070887A1 Apparatus and method for measuring and recording data from violent events |
| 06/11/2009 | US20090150058 Knock determination device and method for internal combustion engine |
| 06/10/2009 | DE10319098B4 Resonanzfreier Klopfsensor Free resonance knock sensor |
| 06/10/2009 | DE102008043822A1 Verbrennungsdrucksensor für eine Brennkraftmaschine Combustion pressure sensor for an internal combustion engine |
| 06/10/2009 | DE102004024920B4 Drucksensor Pressure sensor |
| 06/10/2009 | CN100498260C Device for determining state of detonation |
| 06/04/2009 | US20090139308 Cylinder head gasket and combustion state detector using the same |
| 05/21/2009 | US20090126461 Ion-based triple sensor |
| 05/20/2009 | CN101435731A Combustion pressure detecting apparatus |
| 05/19/2009 | US7533559 Engine knocking detection apparatus which adjusts passband of sensor signal bandpass filter in accordance with increases in crankshaft angle |
| 05/14/2009 | US20090120164 Method and system for estimating in-cylinder pressure and knocking utilizing an in-cylinder pressure sensor |
| 05/13/2009 | EP2058511A1 Fuel injector with fuel pressure sensor |
| 05/13/2009 | EP2057451A1 Pressure measuring sensor |
| 05/12/2009 | US7530275 Pressure sensor set in an opening of a wall |
| 05/07/2009 | WO2009056878A2 Spark ignition device with integral combustion sensor |
| 05/07/2009 | DE10252567B4 Verbrennungszustands-Detektionsvorrichtung für eine Brennkraftmaschine Combustion state detecting device for an internal combustion engine |
| 05/07/2009 | DE102008013594A1 Klopfsensor Knock Sensor |
| 05/06/2009 | CN100485346C Undisassembled measuring system and inspection method for IC engine |
| 05/05/2009 | US7526943 Knock system with detection zones |
| 04/30/2009 | WO2009013117A3 Method for operating an internal combustion engine |
| 04/30/2009 | DE19961299B4 Sensor zur Erkennung des Klopfens bei einer Brennkraftmaschine Sensor for detecting knocking in an internal combustion engine |
| 04/30/2009 | DE10028632B4 Druckerkennungsvorrichtung und Einbauanordnung hierfür Pressure detection device and mounting structure therefor |
| 04/29/2009 | CN101419110A Fire generating device and method |
| 04/29/2009 | CN100482937C Control device for internal combustion engine |
| 04/23/2009 | WO2009050002A1 Knock detection system and method for an amplifier control for a knock signal |
| 04/23/2009 | DE19964193B4 Luftmassenmesser zum Bestimmen des Umgebungsdruckes bei einer Brennkraftmaschine Mass air flow sensor for determining the ambient pressure in an internal combustion engine |
| 04/23/2009 | DE102008046238A1 Klopfsensor-Diagnosesystem und -verfahren Knock sensor diagnostic system and method |
| 04/23/2009 | DE102007049971A1 Glühstiftkerze Glow plug |
| 04/22/2009 | EP2049782A1 Method and device for determining a pressure in the combustion chamber of an internal combustion engine |
| 04/22/2009 | CN201225942Y High-temperature pressure sensor for pulse knock engine based on ion current |
| 04/22/2009 | CN101413453A Internal combustion engine knock determination device and ignition control system including the same |
| 04/16/2009 | DE102007049150A1 Klopferkennungssystem sowie Verfahren für eine Verstärkungsregelung für ein Klopfsignal Knock detection system and method for a gain control for a knock signal |
| 04/16/2009 | DE102006058285B4 Druckkammer und Verfahren zu deren optischer Überwachung Pressure chamber, and to processes for their optical monitoring |
| 04/16/2009 | DE10112530B4 Drucksensor Pressure sensor |
| 04/15/2009 | EP1938072B1 Knock determining apparatus |
| 04/14/2009 | US7518113 Pressure sensor |
| 04/09/2009 | DE102007047710A1 Pressure-measuring device i.e. sheath-type glowplug, for use in e.g. combustion chamber of diesel engine, has layer system with piezoelectric layer provided on rigid body so that impact of body indirectly limits voltage fluctuation in layer |
| 04/09/2009 | DE102006024956B4 Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine Method and device for operating an internal combustion engine |
| 04/08/2009 | CN100476183C Device and method for determining failure of pressure sensor in cylinder |
| 04/02/2009 | WO2009042266A1 Aircraft engine cylinder assembly knock detection and suppression system |
| 03/26/2009 | US20090078027 Aircraft engine cylinder assembly knock detection and suppression system |
| 03/25/2009 | EP2038973A1 Spark plug incorporating a pressure sensor |
| 03/25/2009 | CN101393063A Integration combustion pressure sensor for internal combustion engine |
| 03/19/2009 | US20090072671 Measurement system for measuring cylinder pressure in an internal combustion engine |
| 03/18/2009 | CN101387257A Knock sensor diagnostic system and method |
| 03/12/2009 | WO2009031378A1 Knock determination device and knock determination method for internal combustion engine |
| 03/12/2009 | US20090064762 Knock sensor diagnostic system and method |
| 03/11/2009 | EP2032961A1 Device and method for determining knocking of internal combustion engine |
| 03/11/2009 | CN101382094A Device and method for determining trouble of cylinder pressure sensor |
| 03/11/2009 | CN100468027C Equipment and method for monitoring cylinder pressure and largesize two stroke diesel engine |
| 03/05/2009 | WO2008139113A3 Method for estimating the level of ethanol in a fuel |
| 02/26/2009 | US20090050108 Operation Control Method on the Basis of Ion Current In Internal Combustion Engine |
| 02/26/2009 | DE102007039392A1 Pressure measuring arrangement, has pressure-sensitive elements including output signals with smaller and larger measuring ranges indirectly or directly processed by low-pass filter and high-pass filter |
| 02/25/2009 | EP2028470A2 Combustion pressure sensor |
| 02/24/2009 | US7493836 Measuring sensor comprising a pre-stressing device |
| 02/18/2009 | EP2024722A1 Knock determination device and method for internal combustion engine |
| 02/18/2009 | CN100462540C An in-cylinder pressure detecting apparatus |
| 02/12/2009 | WO2009020016A1 Knock determining device |
| 02/12/2009 | WO2009019834A1 Pressure sensor and method for manufacturing the same |
| 02/12/2009 | DE19741820B4 Verfahren zur Auswertung des Brennraumdruckverlaufs Method for evaluating the combustion chamber pressure |
| 02/11/2009 | EP2023113A2 Diaphragm pressure sensor |
| 02/11/2009 | CN101363383A Pressure monitoring system |
| 02/05/2009 | WO2009016030A1 Force sensor |
| 02/05/2009 | WO2009015941A1 Piezoelectric pressure sensor |
| 02/04/2009 | CN201189806Y Contactless temperature and air pressure monitor for vehicle tyre |
| 02/04/2009 | CN101358901A Signal imitation device and method capable of producing knock-like signal |
| 02/04/2009 | CN101358891A Output representation method of detecting result of cylinder pressure |
| 01/29/2009 | WO2009013117A2 Method for operating an internal combustion engine |
| 01/29/2009 | WO2008142200A3 Indicator arrangement |
| 01/29/2009 | WO2008142199A3 An indicator arrangement |
| 01/29/2009 | US20090025689 Method for Determining Fuel Volatility and Consequently Performing Cold Starting of an Internal Combustion Engine |
| 01/29/2009 | US20090025468 Piezoelectric Combustion Chamber Pressure Sensor Having a Pressure Transmission Pin |
| 01/22/2009 | DE19749814B4 Verfahren zur Bestimmung eines Brennraumdruckverlaufes A method for determining a combustion chamber pressure profile |
| 01/20/2009 | US7478624 Ignition timing control device of internal combustion engine |
| 01/15/2009 | DE102007032745A1 Device for determining the total pressure in a gas measuring stream of a combustion engine comprises a pressure measuring unit or a removal site arranged within a back-up channel through which flows a medium at high speed |
| 01/15/2009 | DE102005035143B4 Klopfsensor Knock Sensor |
| 01/14/2009 | CN201181254Y 传感器系统 Sensor System |
| 01/14/2009 | CN100451590C Knock sensor |
| 01/13/2009 | US7475589 Knock sensor |
| 01/08/2009 | US20090007883 Throttle System and Sensor Unit |
| 01/08/2009 | DE102006012397B4 Klopfsensor Knock Sensor |
| 12/31/2008 | CN101334329A Marine vehicle diesel indicating diagram test system |
| 12/31/2008 | CN100447544C Non-resonant impacting sensor |
| 12/31/2008 | CN100447403C Knocking index value calculation device and calculation method thereof |
| 12/18/2008 | WO2008153213A1 Waterproof connecting structure for pipe |
| 12/18/2008 | DE102004053091B4 Klopfsensor für Verbrennungsmotor Knock sensor for engine |
| 12/18/2008 | DE102004009345B4 Brennkraftmaschinenklopfsensor und Anordnung für dessen Montage Engine knock sensor and arrangement for its assembly |
| 12/11/2008 | WO2008149832A1 Knocking determination device and knocking determination method for internal combustion engine |
| 12/11/2008 | US20080306677 Knocking state determination device |
| 12/11/2008 | DE102005004492B4 Vorrichtung und Verfahren zur Messung des Zylinderdrucks eines Verbrennungsmotors Apparatus and method for measuring the cylinder pressure of an internal combustion engine |
| 12/11/2008 | DE102004028311B4 Klopfdetektion bei einem Motor mit bedarfsabhängigem Hubraum Knock detection in an engine displacement on demand |
| 12/10/2008 | CN101319953A High temperature pressure measurement method and sensor for impulse knocking engine based on ion current |
| 12/04/2008 | US20080295577 Positional arrangement of knock sensor on a motorcycle engine, engine incorporating same, and motorcycle incorporating same |
| 12/04/2008 | DE102008025315A1 Anordnung eines Klopfsensors Arrangement of a knock sensor |
| 12/03/2008 | CN101315310A Positional arrangement of knock sensor |
| 12/02/2008 | US7458250 Ion sensing arrangement for small gasoline engine |
| 12/02/2008 | US7458249 Method and device for operating an internal combustion engine |
| 11/27/2008 | US20080294328 Internal Combustion Engine Knock Determination Device and Knock Determination Method |
| 11/27/2008 | DE10005437B4 Einrichtung zum Steuern des Klopfvorgangs einer Brennkraftmaschine Means for controlling the knocking of an internal combustion engine |
| 11/26/2008 | CN100437065C Pressure detecting apparatus |