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| Number | Title | Issue Date |
| 4996875 | Apparatus and method for evaluation of fluid flow within a combustion chamber The invention provides an apparatus which simulates fluid flow patterns within a chamber. The apparatus includes a chamber having a mechanism to enable viewing of the inside of the chamber. A simulated head member is associated with the chamber to enable ... | 03/05/1991 |
| 4951500 | Method for determining the untwist of turbine blades A method of determining the untwist of turbine blades under dynamic conditions is comprised of the steps of producing a first pair of blade passing event signals in response to a blade tip's movement past a pair of fixed sensors. The signals comprising th... | 08/28/1990 |
| 4945766 | Method and apparatus for ultrasonic inspection Valve spring assemblies are checked for proper assembly of keys by ultrasonically scanning a plurality of assemblies along a path crossing the stem, keys and cap to acquire profile data; compensating for temperature effects by determining the average time... | 08/07/1990 |
| 4942761 | Sensing arrangement for measuring the rotational speed of a rotatable shaft having a crank An L-shaped scanning ring, which is constructed as a simple stamped metal part, can be mounted at a crankshaft web of a crankshaft after installation of the crankshaft. The scanning ring rests against the crankshaft web with both legs and, on one of the l... | 07/24/1990 |
| 4916942 | Notch gauge tool A tool and method for measuring turbine blade outer shroud notch wear in situ in a turbine having multiple stages of turbine blades, each stage being arranged in a circular array. The tool comprises a longitudinal member having first and second ends. A ga... | 04/17/1990 |
| 4915072 | Electronic governor interface module An electronic module interfaces a microcomputer with the fuel injection equipment of a diesel engine so that the microcomputer, acting through the module, exercises control over the fuel injected into the engine. A pulse width modulated fuel deliver contr... | 04/10/1990 |
| 4891972 | Ultrasonic joint inspection device and method A method and device for the examination of a joint between a hollow steel shaft and a piece joined to the steel hollow shaft of a composite camshaft using ultrasonic examination. In the ultrasonic examination, the composite camshaft is put into a liquid a... | 01/09/1990 |
| 4854162 | Method of locating friction generating defects in a multiple bearing assembly A method of determining the location and type of dimensional defects, particularly friction generating defects, which comprises: (a) initiating simulated operation at ambient conditions of an assembly having certain sliding or rolling contact surfaces; (b... | 08/08/1989 |
| 4817420 | Method and device for examination of a joint of a ultrasonic joint inspection device and method A method and device for the examination of a joint between a hollow steel shaft and a piece joined to the steel hollow shaft of a composite camshaft using ultrasonic examination. In the ultrasonic examination, the composite camshaft is put into a liquid a... | 04/04/1989 |
| 4806915 | Apparatus for indicating position of a piston within a cylinder A mechanically actuated sensor indicates the position of a piston within the cylinder of a piston and cylinder assembly. The sensor includes a cam that partially extends into the cylinder chamber for abutting contact with the piston, and a lever arm exten... | 02/21/1989 |
| 4791811 | Deposit thickness measurement A system for determining the thickness of an oxide deposit on a conductive surface by applying a voltage across the deposit while measuring the dielectric breakdown of the layer at various points. An electrode mechanism containing a first electrode can be... | 12/20/1988 |
| 4787242 | Measuring piston steady-state temperatures An apparatus is disclosed for calculating the steady-state temperatures experienced by an Aluminum-Silicon piston. That piston has incorporated therein an Aluminum-Copper alloy device, such as a band integrally cast within the piston, a setscrew, or an in... | 11/29/1988 |
| 4732034 | Tachometer kit with alternator pick up A vehicle tachometer kit including a pick up coil that is adapted to be mounted on the outside of the vehicle's alternator to sense its rotating field without any disassembly. An induced signal in the coil from alternator field leakage provides the normal... | 03/22/1988 |
| 4730484 | Missing bearing detector A missing bearing detector for an internal combustion engine in which the engine, at an early stage in the assembly process, is tested on the assembly line by rotating the crankshaft to move the piston assemblies through their reciprocal cycles; microphon... | 03/15/1988 |
| 4711120 | Method of wear monitoring using ultrasonic phase comparison A method of monitoring the cylinder wall wear using ultrasonic phase comparison techniques is disclosed. The method comprises the steps of introducing ultrasonic waves in a cylinder wall so that the waves travel through the cylinder wall. A change in the ... | 12/08/1987 |
| 4683747 | Timing device An Improved Timing Device used as a tool to reduce the time required to tune an 8.2 liter diesel engine or any similar engine which utilizes the same timing procedure, the timing device preferred embodiment comprises a mounting plate, a housing assembly h... | 08/04/1987 |
| 4661695 | Optical apparatus and method for detecting the top dead center position of an engine piston A position detector for detecting the piston TDC position in a piston engine has a cylindrical casing penetrating the top wall defining a combustion chamber of the engine and fixed thereto, a light emission element, a light reception element each being ac... | 04/28/1987 |
| 4658643 | Apparatus for detecting abnormality and limit of use of plain bearings This invention is related to an apparatus for detecting an abnormal condition and limit of use of a forced lubricating plain bearing which supports a rotary shaft. An oiling pressure bore is formed in the plain bearing, and a pressure detector is connecte... | 04/21/1987 |
| 4637361 | Non-adjustable throttle position indicator The need for an accurate measure of the throttle position exists so the electronic engine controller is employed: to continuously check the position of the throttle, to memorize the lowest throttle position reading from the throttle pot, and to define thi... | 01/20/1987 |
| 4633707 | Method and apparatus for measuring engine compression ratio, clearance volume and related cylinder parameters A method and apparatus for measuring compression ratio and/or clearance volume in an internal combustion engine cylinder wherein the crankshaft angle associated with piston top dead center position is obtained and cylinder pressure is measured at a number... | 01/06/1987 |
| 4620185 | Wearing part diagnostic system employing tracer elements A machine condition diagnostic system is provided wherein machine components are labelled with indicator materials. A normal level of indicators in the lubricant will be established. The lubricant is monitored and periodically or continually sampled to de... | 10/28/1986 |
| 4542652 | Method and apparatus for determining a relative distance in a cylinder and piston assembly In the method and installation for determining a relative distance between the front wall (22) of the cylinder and the piston (14), an ultrasonic converter (30) is used to which a plate (68) presenting a reflecting reference surface (66) for the formation... | 09/24/1985 |
| 4535624 | Engine monitoring system An extent of travel detection system particularly adapted for measuring piston bottom excursion in an internal combustion engine. Two eddy-current position transducer probes are provided for each piston, the first being positioned to sense piston bottom t... | 08/20/1985 |
| 4521863 | Gauge for checking the clearance existing between the cams of a camshaft and the relevant valves A gauge for measuring the clearance between a cam of an engine camshaft and the relevant valve, during rotation of the camshaft, comprises a first movable feeler element, for contacting the cam profile, and a second movable feeler element, for contacting ... | 06/04/1985 |
| 4474059 | Valve adjusting tool An adjusting tool is easily usable on valve stem pusher structure to enable gap indication and adjustment. A socket grips a nut associated with that structure; a gripper locks the socket on the nut; and an indicator on the gripper indicates the gap dimens... | 10/02/1984 |
| 4468956 | Method and apparatus for utilizing microwaves for internal combustion engine diagnostics A method and apparatus is disclosed for determining various diagnostic conditions of an internal combustion engine from an analysis of the resonances of a reflected microwave signal radiated into a combustion chamber of the internal combustion engine. Var... | 09/04/1984 |
| 4448065 | Method and apparatus for pneumatically measuring the volume of combustion chamber spaces in cylinder heads and the like A process and apparatus is provided for measuring the volume of workpiece spaces, especially combustion chamber spaces in cylinder heads for internal combustion engines. Pressurized air is supplied to the workpiece space and the pressure compared with the... | 05/15/1984 |
| 4442814 | Spark timing control system A spark timing control system for reducing engine noise in an internal combustion engine utilizing a sensor for detector for detecting engine vibration, a filtering device receiving the output of the sensor and passing frequency components within a range ... | 04/17/1984 |
| 4389883 | Method of and arrangement for determining the axial play between the stator and the rotor of an electric motor An arrangement for determining the axial play between the stator and the rotor of an electric motor, especially of a small-size electric motor, includes resilient elements which mount the respective electric motor on a stationary support for oscillatory m... | 06/28/1983 |
| 4383442 | Apparatus for sensing the presence and position of a crank pulley bolt in an internal combustion engine The presence and location of a crank pulley bolt on one end of an internal combustion engine is detected by moving a sensing surface on a jig toward the bolt location until it stops, either by contact with the bolt or the pulley, if the bolt is missing. T... | 05/17/1983 |
| 4372156 | Method and apparatus for determining cylinder liner projection A method of determining the projection of the upper end (15) of a cylinder liner (14) above the top surface (13) of a cylinder block structure (10). The cylinder liner (14) is caused to be fully inserted into the cylinder bore (11) by a press ring (32) ac... | 02/08/1983 |
| 4370884 | Operational testing device for inlet valves and outlet valves of reciprocating engines An operational testing device for inlet valves and outlet valves of reciprocating engines which are separately driven for an operational test comprises at least one microphone arranged in the inlet pipe and at least one microphone arranged in the outlet p... | 02/01/1983 |
| 4109506 | Device for monitoring the lubrication of the crankshaft of a reciprocating internal combustion engine A device for testing the lubrication of an internal combustion engine has a potentiometer circuit connected between two electrodes one in contact with the crankshaft and the other in contact with the crank case, a first voltage detector of the averaging t... | 08/29/1978 |
| 4055998 | Waveform count of teeth on an internal combustion engine flywheel The tooth-to-tooth time interval of teeth on a flywheel of a rotating internal combustion engine is recorded for at least a significant portion of an engine revolution, the variation in the time intervals are utilized to determine minima in the tooth-to-t... | 11/01/1977 |
| 4014209 | Air filter condition indicating device An air filter condition indicating device particularly adapted for use with an air filter positioned in an air flow path, such as in an air induction system of an internal combustion engine for continuously sensing and indicating flow condition of an air ... | 03/29/1977 |
| 3988925 | Valve lash adjusting tool and method therefor A tool and method for automatically adjusting internal combustion engine valve lash is disclosed. The engine is first rotated to correctly position the valve lifter cam for the individual valve which is to be adjusted. The novel tool of this invention is ... | 11/02/1976 |
| 3943760 | Apparatus and method for testing engine oil pressure An apparatus and method for use on an engine to selectively isolate the oil pump assembly from the engine's lubricating system for indicating which of these is producing an oil pressure problem in the engine.... | 03/16/1976 |
