| 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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| 01/13/2005 | WO2005003713A2 Contact-based transducers for characterizing unsteady pressures in pipes |
| 01/13/2005 | US20050006854 Cylinder head gasket |
| 01/13/2005 | DE10328980A1 Pressure fluctuations measurement system for flowing fluids has laser beam passing through cell with window at either side, forming part of laser Doppler-interferometer |
| 01/11/2005 | US6840094 Intake pressure sensing device for internal combustion engine |
| 01/06/2005 | US20050000288 Acceleration sensor |
| 01/06/2005 | US20050000272 Knock detecting apparatus for internal combustion engine |
| 01/05/2005 | DE10327147A1 Combustion engine cylinder pressure measurement device has a pressure sensor, optimally a magneto elastic sensor, mounted on the outer wall of the cylinder to produce a signal that is correlated with the wall strain |
| 01/05/2005 | CN2669160Y Compressing pressure tester capable of levelly and up-and-down moving |
| 12/30/2004 | DE10102060B4 Zylinderkopf für eine Brennkraftmaschine mit zumindest einem Messaufnehmer zur indirekten Messung des Brennraumdruckes A cylinder head for an internal combustion engine with at least one measuring sensor for indirect measurement of the combustion chamber pressure |
| 12/29/2004 | CN2667482Y Temperature control compression pressure test instrument for octane value machine |
| 12/28/2004 | US6834538 Spark plug mounted thick film strain gauge |
| 12/23/2004 | US20040260453 Method and device for blanking out interference noise during knock recording in an internal combustion engine |
| 12/23/2004 | US20040255700 Device for determining a force |
| 12/23/2004 | DE102004024375A1 Klopferfassungsvorrichtung und Erfassungsverfahren Knock detection apparatus and detection method |
| 12/16/2004 | US20040250626 Incremental pressurization fluctuation counter and methods therefor |
| 12/16/2004 | US20040250603 Nonresonant type knock sensor |
| 12/16/2004 | US20040250602 Sensor assembly operating at high temperature and method of mounting same |
| 12/15/2004 | EP1486653A2 Combustion pressure sensor |
| 12/15/2004 | EP1485602A2 Pressure sensor apparatus for measuring pressures including knock conditions in engine cylinders |
| 12/15/2004 | EP1007842B1 Knock adjustment method for an internal combustion engine |
| 12/09/2004 | US20040244468 Knocking detection apparatus and detecting method |
| 12/07/2004 | US6827062 Ignition timing control apparatus for internal combustion engine |
| 12/02/2004 | US20040237629 Pressure sensor having a heat shield for use in internal combustion engines |
| 11/25/2004 | US20040231425 Pressure sensor |
| 11/24/2004 | EP1135756A4 Rate of rise detector for use with explosion detection and suppression equipment |
| 11/18/2004 | WO2004099750A1 Method for determining the energy of a knock signal for an internal combustion engine |
| 11/16/2004 | US6817245 Acceleration sensor |
| 11/16/2004 | US6817226 Sensing assembly and method of making same |
| 11/09/2004 | US6813952 Pressure sensor device having temperature sensor |
| 11/03/2004 | EP1473558A2 Method for statistical analysis of the irregular running of a combustion engine |
| 11/03/2004 | CN1542425A Installation structure of knockmeter in internal combustion engine |
| 11/02/2004 | US6810723 Engine combustion monitoring and control with integrated cylinder head gasket combustion sensor |
| 10/28/2004 | WO2004092650A2 Method and apparatus for detecting combustion instability in continuous combustion systems |
| 10/28/2004 | WO2004042219A3 Wavelet based artificial neural net combustion sensing |
| 10/28/2004 | DE10358523A1 Test assembly for simulating gas forces in a combustion engine has a piston that can be placed in fixed positions in a combined cylinder and cylinder head arrangement to permit definition of varying test volumes |
| 10/27/2004 | EP0960324B1 Method for monitoring and error recognition |
| 10/26/2004 | US6807863 Vibration pickup comprising a pressure sleeve |
| 10/21/2004 | US20040206186 Engine cylinder pressure sensor |
| 10/21/2004 | US20040206184 Optical device for measuring pressure or force |
| 10/21/2004 | US20040206177 Acceleration sensor |
| 10/21/2004 | DE10319331B3 Statistical evaluation method for IC engine fault diagnosis using incrementation of different counters when signal representing irregular engine running exceeds threshold value |
| 10/21/2004 | DE102004016394A1 Halbleiterdrucksensor Semiconductor pressure sensor |
| 10/21/2004 | DE102004009345A1 Brennkraftmaschinenklopfsensor und Anordnung für dessen Montage Engine knock sensor and arrangement for its assembly |
| 10/20/2004 | EP1469293A1 Engine cylinder pressure sensor |
| 10/19/2004 | US6805099 Wavelet-based artificial neural net combustion sensing |
| 10/14/2004 | US20040204814 Apparatus for detecting knocking of internal combustion |
| 10/14/2004 | US20040200286 High pressure sensor comprising silicon membrane and solder layer |
| 10/13/2004 | CN1536343A 半导体压力传感器 The semiconductor pressure sensor |
| 10/12/2004 | US6803765 Misfire detection system for internal combustion engines |
| 10/07/2004 | US20040194550 Semiconductor pressure sensor |
| 10/07/2004 | US20040194536 Knocking detecting device for automobile |
| 10/07/2004 | DE10312661A1 Konfokaler faseroptischer Brennraumdrucksensor Confocal optical fiber combustion chamber pressure sensor |
| 10/07/2004 | DE10312174A1 Pressure signaler for measuring combustion chamber pressure in a combustion engine has a pressure transfer piston made of ceramic material arranged between a membrane and a pressure measurement element |
| 10/06/2004 | CN1534281A Knocking sensor mounting structure for IC engine and knocking sensor for IC engine |
| 10/05/2004 | US6799451 Spark generating apparatus having strain gage cylinder pressure measurement feature |
| 09/30/2004 | WO2004083618A1 Throttle body |
| 09/30/2004 | US20040187847 Method and apparatus for detecting abnormal combustion conditions in reciprocating engines having high exhaust gas recirculation |
| 09/30/2004 | US20040187559 Engine knock sensor and structure for mounting the same |
| 09/30/2004 | DE102004013582A1 Drucksensorvorrichtung mit Temperatursensor Pressure sensor device with temperature sensor |
| 09/29/2004 | CN1532531A Pressure sensor device with temperature sensor |
| 09/23/2004 | US20040183398 Amplifier for converting charge signal |
| 09/23/2004 | US20040182163 Pressure sensor device having temperature sensor |
| 09/23/2004 | US20040182145 Glow plug with built-in combustion pressure sensor and manufacturing method thereof |
| 09/23/2004 | US20040182144 Glow plug with built-in combustion pressure sensor |
| 09/23/2004 | US20040182135 Sensing assembly and method of making same |
| 09/22/2004 | EP1460404A1 Glow plug with built-in combustion pressure sensor and manufacturing method thereof |
| 09/22/2004 | EP1460403A1 Glow plug with built-in combustion pressure sensor |
| 09/22/2004 | EP1460402A2 Amplifier for converting charge signal |
| 09/22/2004 | EP1460400A1 Confocal, fiber optic pressure sensor for a combustion chamber |
| 09/22/2004 | CN1167902C Pressure measuring device of burner |
| 09/16/2004 | US20040177694 Apparatus for sensing pressure fluctuations in a hostile environment |
| 09/15/2004 | EP1086305B1 Method for determining the combustion characteristics of an internal combustion engine |
| 09/14/2004 | US6789409 Knock detection apparatus for internal combustion engine |
| 09/07/2004 | US6786200 Method and apparatus for controlling combustion quality in lean burn reciprocating engines |
| 09/07/2004 | US6786078 Vibration pickup comprising a clamping sleeve |
| 09/02/2004 | US20040168677 Method for setting a knock determination period in an internal combustion engine, method for setting a fuel injection timing in an internal combustion engine, and control apparatus for an internal combustion engine |
| 09/02/2004 | US20040168520 Dynamic pressure probe holder and method of obtaining a dynamic pressure signal |
| 08/26/2004 | US20040163623 Ignition timing control apparatus for internal combustion engine |
| 08/26/2004 | DE102004007202A1 Druckdetektor mit langgestrecktem Gehäuse zur Aufnahme eines druckempfindlichen Elementes Pressure detector with elongate housing for receiving a pressure-sensitive element |
| 08/25/2004 | EP1450024A2 Method for setting a knock determination period in an internal combustion engine, method for setting a fuel injection timing in an internal combustion engine, and control apparatus for an internal combustion engine |
| 08/25/2004 | CN1523333A Pressure detector having elongate housing containing pressure-sensitive element therein |
| 08/25/2004 | CN1523226A Knocking index value calculation device and calculation method thereof |
| 08/24/2004 | US6779403 Acceleration sensor |
| 08/24/2004 | US6779381 Threadless knock sensor |
| 08/19/2004 | WO2004070334A1 Measuring sensor comprising a pre-stressing device |
| 08/19/2004 | US20040162668 Method of detecting knock in an internal combustion engine |
| 08/19/2004 | US20040159309 Knocking index value calculation device and calculation method thereof |
| 08/19/2004 | US20040159159 Pressure detector having elongate housing containing pressure-sensitive element therein |
| 08/19/2004 | DE10350857A1 Verfahren zum Erfassen der Zylinder-Identfizierung durch Verwenden von Im-Zylinder-Ionisierung bei der Zündfunkenerfassung nach erfolgter Teilladung einer Zündspule A method for detecting the cylinder Identfizierung by using in-cylinder ionization at the Zündfunkenerfassung after partial charge of an ignition coil |
| 08/18/2004 | EP1447654A1 Apparatus for and method of knocking index value calculation |
| 08/18/2004 | CN2634458Y On-line vacuum measurer |
| 08/17/2004 | US6776032 Misfire deciding method and misfire deciding system for internal combustion engines |
| 08/17/2004 | US6776026 Knock sensor |
| 08/12/2004 | WO2004068097A1 Pressure sensor |
| 08/12/2004 | US20040158388 Knock control system for internal combustion engine |
| 08/12/2004 | US20040154843 Device for receiving a force acting upon a vehicles seat |
| 08/12/2004 | US20040154376 Method and apparatus for inspecting knocking detector |
| 08/11/2004 | EP1444494A1 Method and device for blanking out interference noise during knock recording in an internal combustion engine |
| 08/11/2004 | EP1337406B1 Tyre blow-out detector |
| 08/11/2004 | CN1161594C Method for detecting knocking |