| Patents for F01L 9 - Valve-gear or valve arrangements actuated non-mechanically (7,196) |
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| 04/22/2004 | DE10345639A1 Hydraulischer Stellantrieb zum Betätigen eines Motorzylinderventils Hydraulic actuator for actuating an engine cylinder valve |
| 04/22/2004 | DE10247326A1 Electromagnetic valve drive arrangement for internal combustion engine, has at least one movable element on armature plate that protrudes past one of the two sides of armature plate in end position |
| 04/21/2004 | EP1411213A1 Internal combustion engine valve control apparatus |
| 04/21/2004 | EP1411212A2 Electromagnetic valve actuating mechanism with a locking neutral position screw |
| 04/21/2004 | EP1411211A1 Valve system for a motor vehicle |
| 04/21/2004 | EP1409854A1 Method for the load-controlled operation of electromagnetically actuated inlet valves of an internal combustion engine |
| 04/21/2004 | EP1409853A2 Hydraulic valve actuation systems and methods |
| 04/21/2004 | EP1409851A1 Variable lost motion valve actuator and method |
| 04/20/2004 | US6724606 Single-winding dual-latching valve actuation solenoid |
| 04/20/2004 | US6722349 Efficient internal combustion engine valve actuator |
| 04/15/2004 | US20040069256 Variable timing device for reciprocating engines, engines comprising same and distribution and turbocharging method |
| 04/15/2004 | US20040069255 Method for operating an electrohydraulic valve control system of an internal combustion engine, computer program, and control, and regulating unit for operating an internal combustion engine |
| 04/15/2004 | US20040069054 Valve gear control device of internal combustion engine |
| 04/15/2004 | DE19914591B4 Verfahren zur Herstellung von Elektromagneten Process for the preparation of electromagnets |
| 04/15/2004 | DE10342457A1 Motorventilbetätiger Motorventilbetätiger |
| 04/15/2004 | DE10244518A1 Controlling movement of electromagnetic actuator in motor vehicle gas exchange valve, by controlling two actuators so that desired opening curve is obtained from superposition of opening curves of individual actuators |
| 04/14/2004 | EP1408202A2 Internal combustion engine equipped with a processor and cylinders which each contain at least two electromagnetic controlled inlet valves |
| 04/13/2004 | US6718945 Multicylinder petrol engine with variable actuation of the valves |
| 04/13/2004 | US6718919 Valve driving apparatus |
| 04/13/2004 | US6718918 Device for actuating a gas exchange valve |
| 04/13/2004 | US6718755 Method to increase temperature in an exhaust aftertreatment device coupled to a camless engine |
| 04/13/2004 | US6718620 Method for the manufacture of an electromagnetic actuator |
| 04/08/2004 | US20040065855 Hydraulic actuator for operating an engine cylinder valve |
| 04/08/2004 | US20040065854 Hydraulic valve actuation methods and apparatus |
| 04/08/2004 | US20040065285 Variable engine valve actuator |
| 04/08/2004 | US20040065284 Apparatus for deactivating an engine valve |
| 04/08/2004 | US20040065283 Engine valve actuator |
| 04/08/2004 | DE10244335A1 Armature motion control method for movement of an armature in an electromagnetic actuator activates a gas exchange lifting valve in a motor vehicle's internal combustion engine |
| 04/07/2004 | CN1488033A Valve gear control device of internal combustion engine |
| 04/06/2004 | US6715466 Method and apparatus for operating an internal combustion engine exhaust valve for braking |
| 04/01/2004 | WO2004027225A1 Lost motion system and method for fixed-time valve actuation |
| 04/01/2004 | US20040060539 Direct injection type internal combustion engine |
| 04/01/2004 | US20040060529 Hydraulic valve actuation system |
| 04/01/2004 | US20040060528 Dual coil, dual lift electromechanical valve actuator |
| 04/01/2004 | DE10339265A1 Verbrennungsmotor Combustion engine |
| 04/01/2004 | DE10244337A1 Controlling movement of armature of electromagnetic actuator, especially for combustion engine gas exchange valve, involves moving armature at defined constant speed in end phase of closing movement |
| 03/31/2004 | EP1403473A1 Hydraulic valve actuation system |
| 03/31/2004 | EP1403472A1 Valve control for an internal combustion engine |
| 03/31/2004 | EP0961870B1 Multi-cylinder diesel engine with variable valve actuation |
| 03/31/2004 | CN1485530A 液压控制阀 Hydraulic control valve |
| 03/30/2004 | US6712030 Internal-combustion engine with hydraulic system for variable operation of the engine valves |
| 03/25/2004 | WO2004007931A3 Hydraulic valve actuation methods and apparatus |
| 03/25/2004 | US20040055547 Hydraulically controlled actuator for actuating a valve |
| 03/23/2004 | US6708656 Engine valve actuator |
| 03/18/2004 | WO2004022930A1 Roller tappet for an internal combustion engine |
| 03/18/2004 | WO2004022929A1 Hydraulic valve actuator for actuating a gas exchange valve |
| 03/18/2004 | US20040050352 Variable valve train for a cam-activated lifting valve of an internal combustion engine |
| 03/18/2004 | US20040050351 Hydraulic valve lifter with operating control system |
| 03/18/2004 | US20040050350 Hydraulic actuator for a gas exchange valve |
| 03/18/2004 | US20040050349 Variable force engine valve actuator |
| 03/18/2004 | DE10241591A1 Electromagnetic actuator drive especially for combustion engine gas-exchange valves, has sleeve-shaped armature mounted on carrier element and designed as common armature for both magnets |
| 03/16/2004 | US6705261 Multi-valve engine with gas exchange channel between inlet ports |
| 03/16/2004 | US6705256 Valve timing control system for internal combustion engine |
| 03/11/2004 | WO2004020797A1 Sensor assembly for detecting the movement of a controlling element, which has a short overall length and which is displaced back and forth by an actuator |
| 03/11/2004 | DE10240523A1 Free electrohydraulic valve system for internal combustion engine has spring-loaded hydraulic valves with armatures controlled by magnetic fields generated by electric coils |
| 03/11/2004 | DE10239750A1 Intake device for hydraulic pref. variable valve drive of IC engines has intake piston projecting with one end rod-like from housing, and play compensation element fastened to rod part via pressure piston |
| 03/11/2004 | DE10239748A1 Intake device for flow medium-actuated variable valve drive of IC engine has piston projection with slot having drilled wider part in its base to prevent pressure peaks |
| 03/11/2004 | DE10239747A1 Hydraulischer Ventilsteller zum Betätigen eines GAswechselventils Hydraulic valve head for operating a gas exchange valve |
| 03/10/2004 | EP1396002A2 Power supply method for electrical equipment |
| 03/09/2004 | US6702250 Magnetostrictive electronic valve timing actuator |
| 03/09/2004 | US6701888 Compression brake system for an internal combustion engine |
| 03/09/2004 | US6701887 Method for influencing the mixture formation and charging movement in a cylinder of a piston internal combustion engine with externally applied ignition |
| 03/09/2004 | US6701879 Internal combustion engine |
| 03/09/2004 | US6701876 Electromechanical engine valve actuator system with reduced armature impact |
| 03/04/2004 | WO2004018846A1 Braking device for a gas exchange valve in an internal combustion engine having no camshaft |
| 03/04/2004 | US20040040530 Internal combustion engine |
| 03/04/2004 | US20040040523 Device for controlling at least one gas-changing of an internal combustion engine |
| 03/04/2004 | DE10239118A1 Vorrichtung zur Steuerung mindestens eines Gaswechselventils einer Brennkraftmaschine Device for controlling at least one gas exchange valve of an internal combustion engine |
| 03/04/2004 | DE10224714A1 Holder for hydraulic play compensation device for gas exchange valve in internal combustion engines has locking spring located mainly within compensation element to save space |
| 03/03/2004 | EP1394368A2 A Hydraulic Damper for an Electromechanical Valve |
| 02/26/2004 | WO2004016926A1 Method for controlling and/or regulating a constant voltage converter for at least two electromagnetic valves of an internal combustion engine, especially an internal combustion engine in a motor vehicle |
| 02/26/2004 | WO2004016912A1 Method of determining a clearance |
| 02/26/2004 | US20040035388 Electrohydraulic valve control |
| 02/26/2004 | US20040035379 Device for controlling gas exchange valves |
| 02/26/2004 | US20040035378 Gas exchange valve mechanism for an internal combustion engine |
| 02/26/2004 | DE10237234A1 Reciprocating piston internal combustion engine has mechanical force transmission gear with separate bridging component between camshaft drive and exhaust valve and incorporating hydraulically operated piston |
| 02/26/2004 | DE10236838A1 Roller tappet for valve gear or injection device of internal combustion engine has hollow tappet piston acting as pump piston, constructed in shape of pot, and having crown surface upon which lies helical compression spring by one end |
| 02/26/2004 | DE10236817A1 Inertia brake for gas valve used in engine without camshaft, includes moveable braking mass impacted by valve, just as it closes against its seat |
| 02/26/2004 | DE10236612A1 Controlling movement of armature of electromagnetic actuator for gas exchange valve in vehicle internal-combustion engine, by plotting three curves and e.g. determining working points accordingly |
| 02/26/2004 | DE10230175A1 Two stroke diesel engine, has air inlet valve operated by double effect linear motor having integrated valve spindle |
| 02/24/2004 | US6694933 Lost motion system and method for fixed-time valve actuation |
| 02/19/2004 | US20040031911 Device with an electromagnetic actuator |
| 02/19/2004 | US20040031455 Engine suction valve open/close device by electromagnetic actuator |
| 02/19/2004 | US20040031453 Apparatus for adjusting an operational point of an engine |
| 02/19/2004 | DE10216759A1 Stationary position estimation method for electromagnetic drive for operation of IC engine valve using recursive low-pass filtering of actual position for updating previously estimated stationary position |
| 02/18/2004 | EP1389674A1 Diesel engine exhaust purifying device |
| 02/17/2004 | US6693787 Control algorithm for soft-landing in electromechanical actuators |
| 02/17/2004 | US6691654 Valve-lash adjuster equipped valve operating device for internal combustion engine |
| 02/17/2004 | US6691653 Electronic method and device for the control of gas exchange valves of an internal combustion engine having a variable opening function |
| 02/17/2004 | US6691652 Variable valve drive |
| 02/17/2004 | US6691651 Engine valve operating system for internal combustion engine |
| 02/12/2004 | US20040025819 Oil control valve and method of mounting the oil control valve |
| 02/12/2004 | DE10233284A1 Verfahren zur Verbesserung des Drehmomentverlaufs an einer Mehrzylinder-Viertakt-Kolbenbrennkraftmaschine A method for improving the torque curve of a multi-cylinder four-stroke reciprocating internal combustion engine |
| 02/11/2004 | EP1387927A1 Electromagnetic control device |
| 02/10/2004 | US6690563 Electromagnetic actuator controller |
| 02/10/2004 | US6688264 Method of piloting electromagnetic actuators for the control of a plurality of valves of an engine |
| 02/05/2004 | WO2004011781A1 An electrically operated valve for controlling flow of hydraulic fluid |
| 02/05/2004 | WO2004011780A1 Hydraulic valve actuator for reciprocating engine |
| 02/05/2004 | US20040020467 Engine with high efficiency hydraulic system having variable timing valve actuation |
| 02/05/2004 | US20040020451 Internal combustion engine comprising an electromagnetic actuator which is situated on a cylinder head |