| 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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| 04/25/1995 | US5408863 Knock detector for internal combustion engine |
| 04/19/1995 | EP0649011A2 Temperature compensated diaphragm structure for a pressure transducer |
| 04/18/1995 | US5406852 Pressure sensor having a resistor element on a glass dryer with electrodes connected thereto |
| 04/13/1995 | WO1995010032A1 Engine knock detection process |
| 04/11/1995 | US5404854 Knock control system for internal combustion engine |
| 04/05/1995 | EP0587605B1 Pinking detection process |
| 04/05/1995 | CN2193999Y Cylinder pressure measuring apparatus for internal-combustion engine |
| 04/04/1995 | US5402683 Built-in amplifier-type combustion pressure sensor and manufacturing method thereof |
| 03/30/1995 | DE4332539A1 Pressure transmitter for registering the pressure in the combustion chamber of internal combustion engines |
| 03/28/1995 | US5400648 Process and device for measuring the variation in internal pressure in the cylinder of a piston engine |
| 03/28/1995 | US5400644 Knock detection system |
| 03/21/1995 | US5398540 Knock sensor |
| 03/15/1995 | EP0643291A1 Device for determining the pressure in a cylinder of a piston engine, and diesel motor provided with such a device |
| 03/07/1995 | US5394745 Fluid pressure transmittal device |
| 03/01/1995 | EP0640819A2 Fiber optic high temperature pressure sensor |
| 03/01/1995 | CN2190783Y 动态压力传感器 Dynamic pressure sensor |
| 02/28/1995 | US5394330 System and method for monitoring an operating state of an engine |
| 02/23/1995 | DE4311838A1 Piezoelectric sensor for picking up pressure oscillations and its arrangement in internal combustion engines |
| 02/21/1995 | US5390546 Fiber optic diaphragm sensors for engine knock and misfire detection |
| 02/15/1995 | CN2189740Y Load-weight sensor |
| 02/09/1995 | WO1995004262A1 Knock sensor |
| 02/08/1995 | EP0637736A2 Piezoelectric pressure sensor and method of manufacturing the same |
| 02/07/1995 | US5386722 Method and apparatus for statistically determining knock borderline and evaluating knock intensity in an internal combustion engine |
| 02/01/1995 | CN2188757Y Pressure testing apparatus |
| 01/31/1995 | US5386367 Method for cylinder-selective knock control in internal combustion engines |
| 01/31/1995 | US5385053 Fiber optic pressure sensor systems |
| 01/10/1995 | US5380014 Cylinder head gasket |
| 01/05/1995 | DE4320594A1 Pressure sensor |
| 01/03/1995 | US5377547 Piezoelectric pressure sensor having tubular charge detecting unit and method of assembling same |
| 12/27/1994 | US5376860 Piezoelectric sensor |
| 12/22/1994 | WO1994029687A1 Pressure transducer for the determination of the pressure in combustion chambers of internal combustion engines |
| 12/22/1994 | WO1994029686A1 Pressure transducer for the determination of the pressure in combustion chambers of internal-combustion engines |
| 12/20/1994 | US5373726 Detonation detection system for internal combustion engines |
| 12/13/1994 | US5373448 Knock detection device for an internal combustion engine |
| 12/08/1994 | DE4419138A1 High temperature pressure sensor |
| 12/08/1994 | DE4418656A1 Cooled pressure sensor |
| 12/06/1994 | US5371472 Charge amplifier for sensors outputting electrical charge |
| 11/29/1994 | US5367904 In an internal combustion engine |
| 11/02/1994 | EP0622622A2 Physical quantity detecting apparatus and internal combustion engine control apparatus each utilizing optical fiber |
| 11/01/1994 | US5361213 Control device for an automobile |
| 10/26/1994 | EP0621470A2 A cylinder pressure sensor |
| 10/18/1994 | US5355853 Knock control system for internal combustion engine |
| 10/13/1994 | DE4403660A1 Pressure sleeve |
| 10/11/1994 | US5353643 Pressure sensor |
| 10/11/1994 | US5353633 Pressure sensor for detecting the pressure in combustion chamber of combustion engine |
| 10/05/1994 | EP0482164B1 Cylinder head gasket |
| 09/29/1994 | DE4409103A1 Method for knock detection for a spark-ignition internal combustion engine |
| 09/28/1994 | EP0517774B1 Process and device for measuring the variation in internal pressure in the cylinder of a piston engine |
| 09/27/1994 | US5349873 Force transducer and pressure detecting circuit using the same |
| 09/22/1994 | DE4308796A1 Method and device for the monitoring and diagnosis of vibrationally excited components |
| 09/22/1994 | DE3744738C2 Ignition timing control for internal combustion engine |
| 09/21/1994 | EP0616203A1 A cylinder pressure sensor for an engine |
| 09/20/1994 | US5347846 Knocking detecting device for internal combustion engine and method therefor |
| 09/15/1994 | DE4143402C2 Vibration sensor esp. for IC engine knock detection |
| 09/14/1994 | EP0615119A2 Knock sensor diagnostic system |
| 09/09/1994 | CA2117148A1 Knock sensor diagnostic |
| 09/06/1994 | US5343843 Knock control for high speed engine including a knock burst envelope follower |
| 09/01/1994 | WO1994019595A1 Reciprocating piston engine |
| 08/30/1994 | CA1331778C Abnormal combustion-detecting device and combustion control device for internal combustion engines |
| 08/18/1994 | WO1994018443A1 Method and apparatus for controlling the injection of fuel into the combustion chamber of an internal combustion engine |
| 08/17/1994 | CN2174694Y Dynamic time-meter for monitoring running state of engine |
| 08/17/1994 | CN1025694C 压力传感器 Pressure sensors |
| 08/16/1994 | US5339245 System for detecting combustion state in internal combustion engine |
| 08/10/1994 | EP0609787A1 Spark plug with built-in pressure sensor |
| 08/10/1994 | EP0609525A1 Pressure sensor |
| 08/02/1994 | US5333489 Circuit arrangement to detect knocking |
| 07/27/1994 | EP0526600B1 Pressure sensor for determining the pressure in the combustion chamber of an internal combustion engine |
| 07/21/1994 | DE4401313A1 Piezoelectric knock detector for ic engine |
| 07/20/1994 | CN1089724A Coupler |
| 07/19/1994 | US5329809 In an internal combustion engine |
| 07/05/1994 | CA1330593C Method and apparatus for measuring detonation in an internal combustion engine |
| 06/28/1994 | US5323643 Device for detecting change in internal pressure of cylinder |
| 06/28/1994 | US5323639 Vibration sensor |
| 06/21/1994 | US5321979 Engine position detection using manifold pressure |
| 06/21/1994 | US5321973 Knocking detecting system and method for an internal combustion engine |
| 05/31/1994 | US5315875 Pressure sensor for detecting the pressure in the combustion chamber of internal-combustion engines |
| 05/26/1994 | WO1994011718A1 Joints |
| 05/26/1994 | WO1994011632A1 Knocking noise avoiding device for an engine with a variable valve driving mechanism |
| 05/24/1994 | US5313849 Device for temporarily holding pressure sensor in place within spark plug attaching hole of cylinder head |
| 05/24/1994 | US5313826 For detecting variation in torque in a rotating power transmission member |
| 05/17/1994 | US5311765 Device for determining engine knocking intensity from detected variations in engine cylinder internal pressure |
| 05/04/1994 | EP0483188B1 Pressure and heat flow sensor for the combustion chamber of internal combustion engines |
| 04/27/1994 | EP0594331A1 Piezoelectric sensor |
| 04/27/1994 | EP0593889A1 Piezoelectric pressure sensor and method of assembling same |
| 04/26/1994 | US5305722 Knock suppression apparatus for an internal combustion engine |
| 04/21/1994 | DE4300237C1 Cylinder head seal for water-cooled IC engine - incorporates pressure sensor coupled to external evaluation device detecting irregular engine running |
| 04/20/1994 | EP0592983A2 Knock detection and control system for internal combustion engine |
| 04/06/1994 | EP0590893A2 Knocking detection method for internal combustion engines and ignition timing control method therefor |
| 03/30/1994 | WO1995008760A1 Device for fault recognition in a knock-detecting device |
| 03/17/1994 | DE4230374A1 IC engine cylinder head seal with knock or misfire detector - senses change in polarisation of light due to variation of pressure on birefringent optical waveguide around or across opening into combustion chamber |
| 03/08/1994 | US5293046 Optical high pressure sensor |
| 03/02/1994 | EP0584856A2 Method and apparatus for determining air pressure in an engine |
| 03/01/1994 | US5289717 Air-fuel ratio detecting device |
| 02/22/1994 | US5287735 For detecting abnormal combustion event in an internal combustion engine |
| 02/17/1994 | WO1994003785A1 Adaptor for mounting a pressure sensor to a gas turbine housing |
| 02/17/1994 | DE4225815A1 Strain gauge pressure sensor in IC engine cylinder head seal - provides metal enclosure for combustion chamber opening with strain gauge transducer for detecting combustion irregularities |
| 02/17/1994 | CA2142189A1 Adaptor for mounting a pressure sensor to a gas turbine housing |
| 02/10/1994 | DE4226012A1 Cylinder head seal for internal combustion engine - has combustion pressure measurement detector consisting of pressure-sensitive resistance located between crossing conductive tracks in seal to detect combustion irregularities |
| 02/08/1994 | US5284047 Multiplexed single-channel knock sensor signal conditioner system for internal combustion engine |
| 02/03/1994 | WO1994002817A1 Pressure sensor |