| 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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| 09/04/2002 | CN1090320C Pluck-resistance measuring instrument for snap members |
| 08/29/2002 | WO2002066809A2 Sensor mounted in an injection line leading to an injection valve in a direct-injection internal combustion engine |
| 08/29/2002 | WO2002066282A2 Device for receiving a force acting upon a vehicle seat |
| 08/29/2002 | DE10206389A1 Halbleiterdrucksensor und Abgasanlage, welche denselben enthält Semiconductor pressure sensor and exhaust system, which contains the same |
| 08/27/2002 | US6439030 Signal processing device for piezoelectric sensor |
| 08/27/2002 | US6439029 Method of detecting a knock in an internal combustion engine by means of ionic current |
| 08/22/2002 | US20020112610 Semiconductor pressure sensor and an exhaust system including the same |
| 08/20/2002 | US6435902 Sensor mount |
| 08/06/2002 | US6427662 Knock control apparatus for internal combustion engine |
| 08/06/2002 | US6427539 Strain gauge |
| 08/01/2002 | US20020100330 Pressure sensor, a method for manufacturing a pressure sensor and a combustion engine having a pressure sensor |
| 07/31/2002 | CN1361555A Chip-type LED and its manufacture |
| 07/25/2002 | DE10142799A1 Method of monitoring detonation in motor vehicle internal combustion engine involves comparing detected values to reference value |
| 07/25/2002 | DE10100957A1 Pressure sensor for fuel injection valve of direct-injection internal combustion engine has measuring coil in which voltage is induced if magnetoelastic effect occurs in element surrounding injection line |
| 07/18/2002 | US20020093339 Misfire detection system for internal combustion engines |
| 07/10/2002 | EP1221603A1 Knock / misfire detection by wavelet transform |
| 07/10/2002 | EP0981759B1 Measuring device for electrically decoupled function testing of working systems |
| 07/10/2002 | CN1087425C Apparatus for determining pressure of piston engine cylinder and diesel engine with the same |
| 07/09/2002 | US6418260 Optical fiber and fiber-optic sensing system using the same |
| 07/04/2002 | DE10065297A1 Device for analysis of signals from combustion engine knocking sensors has a serial peripheral interface, SPI, to reduce microcontroller and bus loading and reduce the number of microcontroller input ports |
| 06/26/2002 | EP1217207A2 Misfire detection system for internal combustion engines |
| 06/25/2002 | US6411886 Method of detecting and controlling detonation of an internal combustion engine |
| 06/25/2002 | US6411038 Installation structure of engine component with combustion pressure sensor in engine |
| 06/20/2002 | WO2002016745A3 Method for knock recognition in an internal combustion engine and corresponding device |
| 06/20/2002 | US20020073766 Method for knock control |
| 06/18/2002 | US6407610 Circuit and a method for extending the output voltage range of an integrator circuit |
| 06/13/2002 | US20020072844 Method, computer program, and control system for operating a motor vehicle having an internal combustion engine |
| 06/13/2002 | DE10127230A1 Druckerfassungsvorrichtung The pressure sensing device |
| 06/06/2002 | WO2002044681A1 Pressure sensor unit |
| 06/06/2002 | WO2002044680A1 Charge amplifier for piezoelectric pressure sensor |
| 06/06/2002 | WO2002044542A1 System and method for improved exhaust pressure sensing of an internal combustion engine |
| 06/06/2002 | DE10059701A1 Sonde zur Messung von Druckschwingungen Probe for measuring pressure vibrations |
| 06/05/2002 | EP1211498A1 Probe for measuring pressure vibrations |
| 06/04/2002 | US6397669 Method and arrangement for evaluating combustion processes in an internal combustion engine |
| 05/29/2002 | EP1208364A1 Method for detecting knocking |
| 05/28/2002 | US6394647 Method and device for determining gas pressure and temperature in an hollow space |
| 05/23/2002 | DE10141259A1 Drucksensor mit einem Halbleitersensorchip Pressure sensor having a semiconductor sensor chip |
| 05/23/2002 | DE10058058A1 Pressure sensor for use in the inlet to a combustion engine, with housing and O-ring arrangement for easy mounting in its measurement position |
| 05/23/2002 | DE10054201A1 Method for determining the pressure in a fuel reservoir of a fuel injection, especially common rail, system that is more accurate as short-term pressure reductions caused by the fuel injections processes are filtered out |
| 05/23/2002 | DE10034390A1 Pressure sensor for internal combustion engine, has piezoelectric element which generates a signal during deformation of bar connected with a film |
| 05/21/2002 | US6392584 System and method for detecting and warning of potential failure of rotating and vibrating machines |
| 05/14/2002 | US6386028 Pressure monitor |
| 05/02/2002 | WO2002034551A1 Tyre blow-out detector |
| 05/02/2002 | US20020050270 Diagnostic process for use in evaluation of sensor signals, especially knock sensor signals |
| 05/02/2002 | US20020050162 Knock locating method |
| 05/02/2002 | EP1202036A1 Method for localising knocking in internal combustion engines |
| 05/02/2002 | DE10052309A1 Multiple cylinder combustion engine and knocking sensor arrangement, with the sensor arranged on or near the crankshaft to reduce the number of sensors required for engine configurations other than straight |
| 05/02/2002 | CA2426357A1 Tyre blown-out detector tor |
| 04/30/2002 | US6378494 Knock detection apparatus |
| 04/25/2002 | US20020047507 Pressure sensor-incorporating spark plug |
| 04/25/2002 | DE10048060A1 Knock regulation involves adopting minimal value of two knock detection characteristics of cylinder pair as knock detection threshold for cylinders of pair with phase detection failure |
| 04/24/2002 | EP1199551A2 Spark plug incorporating a pressure sensor |
| 04/18/2002 | US20020043898 High temperature piezoelectric sensor |
| 04/18/2002 | DE10044478A1 Schwingungsaufnehmer bzw. Isolierschiebe für einen Schwingungsaufnehmer Vibration Sensors Vibration Sensors for one or Isolierschiebe |
| 04/11/2002 | DE10049908A1 Optimization of combustion engined motor vehicle operation by measurement of operating parameters and determination of corresponding values that are then used to adjust vehicle operation taking into account wear, etc. |
| 04/04/2002 | DE10044479A1 Schwingungsaufnehmer zur Befestigung an einem Schwingungen aufweisenden Bauteil Vibration sensor having for attachment to a vibrating member |
| 04/04/2002 | DE10044477A1 Schwingungsaufnehmer Vibration Sensors |
| 04/04/2002 | DE10044476A1 Schwingungsaufnehmer zur mittelbaren oder unmittelbaren Befestigung an einem Schwingungen aufweisenden Bauteil Vibration pickup to be indirectly or directly fastened to a vibrating component |
| 04/03/2002 | EP0923717B1 Device for determining the pressure and temperature in the suction pipe of an internal combustion engine |
| 04/02/2002 | US6363779 Pressure sensor for an internal combustion engine having an intake tube |
| 03/26/2002 | US6360587 Pre-ignition detector |
| 03/26/2002 | US6360586 Device for detecting the knocking of an internal combustion engine |
| 03/21/2002 | WO2002023145A2 High temperature piezoelectric sensor |
| 03/21/2002 | DE10138110A1 Knock detection in internal combustion engine involves making knock detection threshold less sensitive and/or modifying reference level control while filter characteristic change occurring |
| 03/20/2002 | EP1189050A1 Pressure detector for the cylinder head of an internal-combustion engine, and a cylinder head of an internal-combustion engine provided with such a pressure detector |
| 03/19/2002 | US6359377 Spark plug with engine cylinder pressure sensor |
| 03/14/2002 | WO2002021095A1 Vibration pickup and an insulating disk for a vibration pickup |
| 03/14/2002 | WO2002021094A1 Vibration pickup for fastening to a vibrating component part |
| 03/14/2002 | WO2002021093A1 Vibration sensor for fixing directly or indirectly to a vibrating component |
| 03/14/2002 | WO2002021092A1 Vibration and temperature sensor |
| 03/14/2002 | WO2002020313A1 Device for providing a signal in response to a change of the ambient pressure |
| 03/14/2002 | DE10138976A1 Pre-ignition detector has ion sensing circuit that can be operated to produce ion sensing signal before control circuit switches off ignition control signal to detect pre-ignition |
| 03/14/2002 | DE10043501A1 Method of monitoring detonation in motor vehicle internal combustion engine involves comparing detected values to reference value |
| 03/14/2002 | DE10043498A1 Verfahren zur klopferkennung bei Brennkraftmaschinen A method for detecting knocking in internal combustion engines |
| 03/07/2002 | US20020029105 Method for detecting knock in an internal combustion engine |
| 03/07/2002 | DE10041777A1 Verfahren zur Klopferkennung für eine Brennkraftmaschine und entsprechnde Vorrichtung Method for knock detection system for an internal combustion engine and entsprechnde device |
| 03/06/2002 | EP1184651A2 Method for detecting knock in an internal combustion engine |
| 03/06/2002 | EP1108163B1 Control device in a motor vehicle |
| 02/28/2002 | WO2002016745A2 Method for knock recognition in an internal combustion engine and corresponding device |
| 02/28/2002 | US20020023500 Pressure sensor having semiconductor sensor chip |
| 02/27/2002 | EP1034416B1 Method for evaluating the march of pressure in a combustion chamber |
| 02/21/2002 | WO2002014822A1 Knock recognition in internal combustion engines with modifications by changing filter characteristics or cylinder specific changes |
| 02/20/2002 | EP1099066B1 Control device in a motor vehicle and method to mount a pressure gauge which is used by the control device |
| 02/20/2002 | EP0864079B1 Detonation detection method for internal combustion engines |
| 02/20/2002 | CN1079534C Vibration receiving and mfg. method therefor |
| 02/13/2002 | EP0938651B1 Pressure and temperature sensor |
| 02/12/2002 | CA2025074C Versatile, overpressure proof, absolute pressure sensor |
| 02/07/2002 | WO2001044756A3 Vibration sensor with a pressure housing |
| 02/07/2002 | US20020014108 Method for detecting knocking combustion in the operation of an internal combustion engine |
| 02/07/2002 | DE10035536A1 Zündkerze zur Aufnahme eines Drucksensors und zugehöriger Zündkerzenstecker Spark plug for receiving a pressure sensor and associated spark plug |
| 01/31/2002 | WO2002008714A1 Spark plug for receiving a pressure sensor and corresponding spark plug connector |
| 01/31/2002 | US20020011099 Crankshaft drive sensor |
| 01/30/2002 | CN2475016Y Novel equilibrium pipe net easy bumping and inverting suction |
| 01/24/2002 | US20020008527 Measuring circuit |
| 01/24/2002 | DE10033586A1 Verfahren und Vorrichtung zur Fehlererkennung bzw. Diagnose Method and device for fault detection or diagnosis |
| 01/24/2002 | DE10032702A1 Verfahren zur Erkennung klopfender Verbrennung beim Betrieb einer Brennkraftmaschine A method of detecting knocking combustion during operation of an internal combustion engine |
| 01/23/2002 | EP1174697A1 Detecting knocking in an internal combustion engine with normalization of an ionic current |
| 01/23/2002 | CN1332098A Vehicle loaded densification degree detector |
| 01/23/2002 | CN1078348C Oscillating receiver |
| 01/17/2002 | WO2002004800A1 Method and device for error detection and diagnosis in a knock sensor |