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| Number | Title | Issue Date |
| 7503209 | Timing device for internal combustion engine A stroboscopic timing device for an internal combustion engine includes a switchable light source having a light emitter and a base for mounting the light source on an exterior surface of an engine adjacent to a rotating shaft such as a camshaft or a crankshaft. A p... | 03/17/2009 |
| 7395699 | Spark-plug LDV, LIF, and LII probe for engine flow and combustion analysis A traversable, fiber-optic probe design for flow-related measurements in a production-car IC engine during normal operating conditions may be fitted into an M8 spark-plug hole and traversed as much as 50 mm in an axial direction of the spark plug, allowing measureme... | 07/08/2008 |
| 7389682 | Method and apparatus for engine torque sensing An engine torque sensory system (10), adapted for use with an engine-driven vehicle (12) having a flexplate (18), including at least one sensor (26) fixedly attached on the surface of the flexplate (18) and operable to detect defor... | 06/24/2008 |
| 7389175 | Method and apparatus for detecting the electrical position of the rotor of an electrical machine coupled to an internal combustion engine A method for controlling an alternator includes determining a rotor position of the alternator using data obtained from a first data source when a first condition is met, and determining the rotor position for the alternator using data obtained from a second data so... | 06/17/2008 |
| 7380449 | Method and device for testing a fuel metering system A method and device for testing a fuel metering system. A control unit checks the injector contacts during the initialization phase prior to starting up the fuel metering system. For the test, the injectors are activated by the control unit, and the current values a... | 06/03/2008 |
| 7373803 | Driver circuit for an ion measurement device A driver circuit is described for an ion measuring device associated with a cylinder of a diesel engine for the measurement of the conductivity of the combustion gas present in the cylinder, wherein a negative voltage can be applied by the driver circuit to a glow p... | 05/20/2008 |
| 7370516 | Method for estimating transmission input torque A method for estimating transmission input torque is provided. The method includes identifying a plurality of measurable characteristics that influence transmission input torque. Thereafter, transmission input torque values are measured on a sample powertrain operat... | 05/13/2008 |
| 7369932 | System and method for turbine engine fault detection using discrete event system modeling A system and method is provided for fault detection in a turbine engine. The fault detection system and method uses discrete event system modeling to provide improved fault diagnosis and prognosis. The fault detection system and method receives sensor taken at multi... | 05/06/2008 |
| 7363803 | Failure diagnostic system for fuel vapor processing apparatus In a failure diagnostic system for a fuel vapor processing apparatus, a processing flow path comprising a vapor line, a canister and a purge line is closed with a vapor control valve and a purge control valve. The interior of the processing flow path is reduced in p... | 04/29/2008 |
| 7363905 | Procedure to operate a combustion engine in the event of damage and a device to perform the procedure Procedure to operate a combustion motor in the event of damage, whereby the thermoelectric voltage of a lubricant interruption on parts moving relative to each other and made of different, electrically conducting materials, is used to initiate an alarm signal, in th... | 04/29/2008 |
| 7360406 | Method of determining the rest position of an internal combustion engine The final rest position of an internal combustion engine crankshaft is determined by counting pulses of a CRANK signal responsive to crankshaft rotation after engine turn-off and evaluating the timing of the pulse edges to detect reversals in the direction of cranks... | 04/22/2008 |
| 7353697 | System for mounting an engine to a frame A system for mounting an engine to a frame in a manner to permit measurement of its torque by a transducer which is isolated from loads induced by installation misalignments, frame deflections and acceleration induced forces. One embodiment of the system is compatib... | 04/08/2008 |
| 7316164 | Pressure detection device and manufacturing method of the same A pressure detection device includes a sensing part that is provided at one end portion of the housing to output an electrical signal responsive to an applied pressure, a circuit part that is provided at an other end portion of the housing to process the signal from... | 01/08/2008 |
| 7316156 | Limited slip differential performance simulation procedure A method of simulating a split μ axle test for limited slip differentials for automotive applications. The method includes treating a clutch pack for a limited slip differential in a lubricant composition for a first period of time at a predetermined temperature. T... | 01/08/2008 |
| 7305871 | Cylinder discriminating device and method thereof, and engine ignition control device and method thereof A cylinder discriminating device includes a cylinder discriminating section. A crank rotor includes first and second non-tooth portions asymmetrically positioned on the crank rotor. The first non-tooth portion is positioned to correspond to a top dead center of a sp... | 12/11/2007 |
| 7302838 | System and method for closed loop control of boundary layer shear stress A system is provided for controlling boundary layer shear stress adjacent a surface over which a fluid stream has been established. The system comprises a boundary layer control device adapted for altering at least one flow characteristic within a boundary layer in ... | 12/04/2007 |
| 7293454 | Anti-aliasing acoustic filter in the presence of pulsating flow An exhaust flow measurement system uses a noise attenuation device to cancel exhaust gas pulsations at the harmonic frequency of a flow rate measurement transducer. ... | 11/13/2007 |
| 7292933 | Engine misfire detection A method of detecting an engine malfunction such as a misfire includes determining engine speed values at each of a plurality of measurement angular positions, heterodyning the engine speed values with sine and cosine functions indexed in the angular domain, passing... | 11/06/2007 |
| 7265319 | Multifunction meter for welding apparatus A multifunction meter and method for monitoring a welding-type device is disclosed. The multifunction meter has a single display unit, a first input configured to receive feedback from an engine, and a second input configured to receive feedback from a power convert... | 09/04/2007 |
| 7261095 | Method for determining the temperature downstream the entry of a catalytic converter for a turbocharged engine This method for determining, in a turbocharged engine, the temperature of the exhaust gases downstream of the turbine of the turbocharger, comprises the following steps: determining the temperature upstream of the turbine of the tu... | 08/28/2007 |
| 7262712 | Helicopter tactile exceedance warning system A helicopter tactile accedence warning system includes a control stick and a tactile warning device attached to the control stick. A computer or micro processor and a keyboard for entering a safe temperature profile are also provided as well as a thermocouple for me... | 08/28/2007 |
| 7251571 | Methods of diagnosing open-secondary winding of an ignition coil using the ionization current signal In a first embodiment, the present invention is a method of detecting an open secondary winding, including the steps of enabling an integrator, resetting the integrator, detecting an ionization current, integrating the ionization current over a spark window, compari... | 07/31/2007 |
| 7243532 | Misfire detector for internal combustion engines Air fuel ratios of exhaust gases of respective cylinders are estimated based on a detection value of an air fuel ratio sensor mounted in an exhaust-collector. Normal combustion and misfire are determined depending upon whether individual cylinder air fuel ratios of ... | 07/17/2007 |
| 7216531 | Compression tester adapter apparatus and method A compression tester adapter includes a plug fitting, a connector fitting and a flexible hose connected to the plug fitting and to the connector fitting to adapt a standard internal combustion engine cylinder compression tester hose assembly to a 16-millimeter threa... | 05/15/2007 |
| 7218117 | Handheld tester for starting/charging systems An improved hand held starting/charging system tester. According to one aspect of the present invention, the portable handheld tester includes a connector to which various test cables can be removably connected to the tester. Detection circuitry within the tester de... | 05/15/2007 |
| 7213449 | Flat track chassis dynamometer A chassis dynamometer for use with a test vehicle such as a snowmobile is provided. First and second spaced apart rolls support the test vehicle. A belt is arranged around the first and second rolls and rotationally couples the rolls to one another. The belt include... | 05/08/2007 |
| 7207214 | Glow plug integrated pressure sensor A pressure-sensing element for an internal combustion engine is located in the sleeve of a ceramic glow plug heater having axial and radial pressure channels connecting the sensor diaphragm to the combustion chamber. The sensor signal conditioner is encapsulated in ... | 04/24/2007 |
| 7174777 | Method for controlling at least one actuator in a mass flow duct A method for controlling at least one actuator in a mass flow duct, which makes it possible to implement a predefined pressure upstream from the at least one actuator more rapidly. The flow resistance of the mass flow duct is modified by controlling the at least one... | 02/13/2007 |
| 7168304 | Method and apparatus for indicating a potential fluid filter problem A fluid pressure near a filter (103) is measured and compared (307) to a predetermined value that is based on one or more engine operating parameters. When the measured fluid pressure deviates enough from the predetermined value by an established amoun... | 01/30/2007 |
| 7165446 | Failure diagnostic apparatus for fuel vapor purge system and fuel vapor purge apparatus and combustion engine having failure diagnostic apparatus After a reference pressure using a reference hole is measured, a pressure in an evaporation path is measured. An ECU conducts failure diagnosis using, as a determination pressure for diagnosing presence/absence of a failure, a value obtained by correcting the refere... | 01/23/2007 |
| 7162916 | Method and system for determining engine cylinder power level deviation from normal Individual cylinder output deviations from a normal operating engine cylinder are detected via an analysis of crank shaft speed fluctuations. In the detection phase, the engine is operated at a steady state low idle condition, and engine speed data is collected over... | 01/16/2007 |
| 7146851 | Diagnostic apparatus for variable valve control system ECU calculates variations of air-fuel ratios of respective cylinders and variations of air-fuel ratios of all the cylinders in variable intake valve lift devices of two cylinder groups. Presence and absence of an abnormality is determined on the basis of whether rat... | 12/12/2006 |
| 7143641 | Fluid test machine, methods and systems A method, system and device for analyzing the performance of a fluid discharge device, pursuant to which a fluid discharge device is mounted in a fixture; a discharge monitoring device is located downstream from the fluid discharge device; flow of fluid that is pass... | 12/05/2006 |
| 7140240 | Electric engine start system with inspection mode A turbine engine inspection arrangement utilizes a motor that is otherwise utilized for starting the engine. An inspection interface allows for communicating with a motor controller to operate the motor in an inspection mode. During inspection, the motor moves the c... | 11/28/2006 |
| 7131321 | Throttle system abnormality determination apparatus An abnormality determination apparatus of a throttle control system calculates an integrated value of a deviation between an actual throttle angle and a target throttle angle. The abnormality determination apparatus determines existence or nonexistence of an abnorma... | 11/07/2006 |
| 7117728 | Misfire detecting apparatus for internal combustion engine and method thereof Whether a misfire occurred is judged based on a comparison between diagnosis data that indicates a variation of an engine rotation speed and a threshold based on engine operating conditions. The threshold is corrected based on data that indicates an average correlat... | 10/10/2006 |
| 7117725 | In-cylinder pressure detecting apparatus An apparatus for detecting an in-cylinder pressure of an engine is provided. The apparatus comprises an in-cylinder pressure sensor for outputting a signal indicating a change rate of an in-cylinder pressure and a control unit. The control unit is configured to corr... | 10/10/2006 |
| 7117727 | Misfire detecting apparatus for internal combustion engine and method thereof Whether a misfire occurred is judged based on a comparison between diagnosis data that indicates a variation of an engine rotation speed and a threshold based on engine operating conditions. The misfire judgment is canceled based on a result of a comparison between ... | 10/10/2006 |
| 7114380 | Method for determining and compensating the geometric errors of a rotary encoder A method is described for determining geometric errors of a rotary encoder with a plurality of increments that can be registered by a sensor, encoder being applied to an internal combustion engine and being mounted on a shaft which can be directly or indirectly set ... | 10/03/2006 |
| 7107828 | Method and code for controlling actuator responsive to oil pressure using oil viscosity measure A method and code for controlling the operation of a deactivatable valve lifter of an internal combustion engine includes determining an oil viscosity measure based upon an engine oil pressure achieved when the engine is operating at a warm engine idle operating con... | 09/19/2006 |