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| Number | Title | Issue Date |
| 6308558 | Method for checking the effect of swirl ducts in multi-cylinder internal combustion engines, in particular direct injection engine In a method used for checking the effect of swirl ducts in multicylinder internal combustion engines, especially engines with direct injection, swirl numbers are determined with a swirl measuring device in a simultaneous cylinder that can be connected to ... | 10/30/2001 |
| 6272910 | Camshaft degreeing platform A measurement platform for an overhead cam shaft type internal combustion engine having at least one piston reciprocable within a cylinder formed in a block; an intake valve and an exhaust valve for the cylinder, wherein intake and exhaust cam lobes on th... | 08/14/2001 |
| 6250145 | Method of operationally testing an exhaust gas turbocharger having a variable turbine geometry In the case of a method for operationally testing an exhaust gas turbocharger with a variable turbine geometry, actual values are detected of operating quantities which influence the operational capability of the exhaust gas turbocharger and which compris... | 06/26/2001 |
| 6209390 | Turbocharger fatigue life monitor Turbocharger fatigue life monitors comprise at least one sensor that measures an actual operating condition of the turbocharger, e.g., turbine rotational speed or turbine inlet temperature. The device comprises a central processing unit for receiving info... | 04/03/2001 |
| 6205850 | Method for setting tappet clearance A method for setting clearance between a tappet screw and a valve wherein the movement of the valve during opening and closing is monitored and used to calculate further linear movement of the tappet screw to provide a desired tappet clearance. In one emb... | 03/27/2001 |
| 6173605 | System and method for detecting snap ring position A detection system and method is provided for detecting the position of a snap ring in a bearing assembly of a transmission system. A spreader pin and a bearing are installed directly into spreader segments. Spreader segments receive the bearing. A conduc... | 01/16/2001 |
| 6155108 | Valve seat insert gaging system A valve seat insert inspection system generally comprises a camera which inspects the inner periphery of the valve seat insert adjacent the cylinder head. The camera detects the difference reflectivity of any gap between the valve seat insert and cylinder... | 12/05/2000 |
| 6131445 | Fuel tank sensor assembly A fuel tank sensor assembly for an automotive fuel tank includes a sensor element mounted below a shear plane of the sensor assembly. In the event that a portion of the assembly is sheared off, the sensor element effectively seals off the sense port exten... | 10/17/2000 |
| 6131435 | Method of estimating remaining life of a power transmission belt A method for estimating remaining life of a power transmission belt. The method includes a step of providing a power transmission belt having a) a body having a rubber material with a length and laterally spaced surfaces to engage a cooperating pulley and... | 10/17/2000 |
| 6112584 | Magnichanical sensor A system and method are provided for detecting the presence of a snap ring in a bearing assembly of a transmission system. A magnetic field is generated and a switch is positioned within the magnetic field, whereby the switch switches from its normal posi... | 09/05/2000 |
| 6114966 | Motor having a bearing wear monitoring device A motor is provided in which zero-point positioning of the stator and rotor in the axial direction is simple. The operation of replacing the rotor or stator can be done easily. A motor is provided in which zero-point positioning of the stator and rotor in... | 09/05/2000 |
| 6101442 | System and method for detecting a valve-related fault condition for an internal combustion engine A system and method for detecting a fault condition in an internal combustion engine utilizes the intake air temperatures at each of a plurality of cylinder sections of the engine. An average value of the plurality of intake air temperatures is compared t... | 08/08/2000 |
| 6095104 | Method for the dimension checking of the timing system of an engine A method and an associated apparatus for the dimension checking of the timing system of an internal combustion engine, in particular for checking the clearance existing between the cams of the camshaft and the relevant valves in the cylinder head, by dime... | 08/01/2000 |
| 6082315 | Electromagnetic valve actuator An electromagnetic valve actuator is disclosed. The actuator includes an upper electromagnet and a lower electromagnet placed in a mirror relationship to each other about a central vertical axis, an armature element disposed intermediate the upper and low... | 07/04/2000 |
| 6050135 | Spark plug port compression cap The disclosed invention is an inexpensive, simple and reusable device to aid in setting the spark plug timing of an internal combustion engine by allowing one person to detect a piston's top dead center. In function, the detector is sealably inserted into... | 04/18/2000 |
| 6035707 | Camshaft bench tester An apparatus and method for simulating the operating environment of a camshaft. A housing defines a chamber, the chamber being sized to receive the camshaft and to permit axial rotation of the camshaft within the chamber. The housing is supported by a fra... | 03/14/2000 |
| 5967660 | Accelerated thermal fatigue testing of engine combustion chambers A method and apparatus of providing accelerated thermal fatigue testing of an engine component, comprising: (i) impinging one or more torch flames directly on a selected area of the test specimen (i.e. metallic engine cylinder head) to heat such area to a... | 10/19/1999 |
| 5883302 | Pressure testing of engine components having coolant flow paths An engine component of the type having a cavity therein through which cooling water can circulate, there being ports which lead from a face of the engine component into the cavity, is pressure tested by closing the ports and by pressing port closing eleme... | 03/16/1999 |
| 5814724 | Method and device for determining piston engine wear A device and a method for determining big end bearing and wrist pin bearing wear in a piston engine without complete disassembly of the engine. The device includes a probe rod which moves in response to the movements of the piston in a cylinder being test... | 09/29/1998 |
| 5801303 | Method and gauge for correctly reassembling a V-engine A gauge and method for reestablishing the designed relationships between the block, heads and intake manifold of a V-engine after it has been disassembled for refinishing. The angular relationship between the surfaces of the heads is ascertained to determ... | 09/01/1998 |
| 5744705 | Method and apparatus for engine testing The invention relates to a method of, and apparatus for, determining the clearance between wear surfaces of a reciprocating piston engine and the surrounding cylindrical bore of the engine block, without need for physical contact with the piston. As parti... | 04/28/1998 |
| 5741965 | Aircraft jet engine testing tool The present invention is directed towards an aircraft engine testing tool which facilitates the visual inspection of aircraft internal engine blades by permitting the automatic repositioning of the internal engine blades to an inspection orientation. The ... | 04/21/1998 |
| 5736937 | Apparatus for wireless transmission of shaft position information An apparatus for reliably conveying real time shaft position information, without cables, between a stationary sensor connected to a reciprocating engine or compressor, or other rotating machinery, and an engine analyzer, in the presence of high energy ig... | 04/07/1998 |
| 5710375 | V-engine equipped with means for taking measurements For the purpose of taking measurements within a V-engine while it is running during development of the engine, a first of the two banks of piston and cylinders defining the V is provided with measurement sensors and is arranged to run normally performing ... | 01/20/1998 |
| 5617819 | Remote starting system for a vehicle having a diesel engine A system for remotely starting a diesel engine of a vehicle. The system comprises a portable hand-held RF transmitter issuing a command in the form of a binary-coded sequence. A slave controller mounted on-board the vehicle executes the command by energiz... | 04/08/1997 |
| 5602732 | Fault tolerant displacement determination method Resolution of redundant displacement sensor information to form a displacement value in an automotive electronic throttle control system provides for a varying contribution by each of a plurality of redundant sensors to the formation of the displacement v... | 02/11/1997 |
| 5569846 | Modular apparatus for iteratively evaluating combustion flow process A modular apparatus for evaluating flow processes. The apparatus has (i) a closure for a chamber, the closure defining at least one aperture and at least one seating basin facing away from the chamber; and (ii) at least two stacking elements cooperatively... | 10/29/1996 |
| 5555457 | Microwave telemetry for sensing conditions in enclosed rotating and/or reciprocating machinery An apparatus for measuring the pressure within the torque converter of an automatic transmission. The apparatus includes a sensor to sense the interior pressure of the torque converter and generate an electrical signal representative of that pressure. Tha... | 09/10/1996 |
| 5547304 | Connector unit, particularly of the multiple-connection rapid-engagement type A connector unit of the multiple-connection, rapid-engagement type includes a first connector part and a second connector part which can be coupled face to face as a result of a relative movement along a general axis of the first connector part. The secon... | 08/20/1996 |
| 5533384 | Apparatus for inspecting an engine valve seat An apparatus for measuring the ovality, concentricity and runout of an engine valve seat which is comprised of a datum plate, an air gage head, a pot master, a compressed air source, a signal processing device, and a display unit. The compressed air sourc... | 07/09/1996 |
| 5515712 | Apparatus and method for testing combustion engines An apparatus and a method for testing internal combustion engines are disclosed. In the preferred arrangement the apparatus includes a test module supporting an electric motor for rotating an engine mounted on an engine module at speeds throughout the eng... | 05/14/1996 |
| 5499530 | Pneumatic tester for engine oil pumps A pneumatic apparatus to test an engine oil pump of the type designed to be driven by an end of the engine crankshaft. On a test stand, the pump is rotated by a driving mechanism while airflow is generated by the pump itself or while pressurized air is in... | 03/19/1996 |
| 5492006 | Method of testing internal combustion engine A method of testing an internal combustion engine to detect engine defects. After the engine has been assembled, the engine is cranked, gas under pressure is injected into the intake ports, and the pressures developed at the exhaust ports as the engine is... | 02/20/1996 |
| 5428992 | Generating a once-per-cycle signal for a locomotive diesel engine A locomotive diesel engine test assembly generates a once-per-cycle signal phased to the top dead center of a predetermined piston in its cylinder. A locomotive diesel engine crankcase door is hermetically attached to the crankcase so as to cover a camsha... | 07/04/1995 |
| 5377538 | Method and apparatus for measuring the volume and the velocity of air flowing through individual parts of a two cycle engine cylinder A method of measuring the volume and the velocity of fluid flow through individual ports or combination of ports of a ported cylinder as defined by the cut away of an isolation tube, and utilizing a pitot tube coupled with a pressure differential gage to ... | 01/03/1995 |
| 5351413 | Clearance checking tool A tool arranged to receive a rocker arm of an internal combustion engine to direct the rocker arm to displace a valve and thereby permit measuring of such linear displacement is provided. The tool is arranged to include a first wall mounting a handle, and... | 10/04/1994 |
| 5293776 | Cylinder discriminating sensor layout A sensor arrangement for an internal combustion engine so as to provide a signal when one cylinder of the engine is at a pre-determined position. The sensor arrangement includes an inductive sensor that is mounted directly in the cam cover of the engine a... | 03/15/1994 |
| 5239864 | Dynamic tester for rotor seals and bearings A dynamic tester (10) for testing vibration damping seals and bearings is constructed having a hollow shaft (12) extending through the seal or bearing, with the shaft internally supported at each end by fluid bearings (19, 21) on hollow bosses (18, 20) co... | 08/31/1993 |
| 5106202 | Apparatus for measuring the temperature of a piston in an internal combustion engine An apparatus for measuring the temperature of a piston in an internal combustion engine. The apparatus includes a thermistor to sense the temperature of the piston and generate an electrical signal representative of that temperature, a transmission unit c... | 04/21/1992 |
| 5072613 | Method for evaluation of fluid flow within a simulated combustion chamber The invention concerns a method for evaluating port design of an engine cylinder head by viewing patterns of fluid flow therefrom into a transparent chamber simulating an engine combustion chamber. A permeable member in the chamber simulates the position ... | 12/17/1991 |
