| Patents for F01L 3 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof (4,573) |
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| 07/13/2004 | US6762922 Device and method for detecting the position of an object |
| 07/13/2004 | US6761141 Valve stem seal with built-in sprue |
| 07/08/2004 | US20040131492 Production process for Fe-based sintered alloy valve seat |
| 07/07/2004 | CN1509828A manufacturing method for titanium aluminium base alloy air bleeding valve of vehicle |
| 07/01/2004 | US20040123849 Cold air super-charged internal combustion engine, working cycle & method |
| 06/30/2004 | EP0787252B1 A dual piston internal combustion engine |
| 06/30/2004 | CN1508401A Sealing structure of rotating valve block distribution mechanism for internal combustion engine |
| 06/29/2004 | US6755161 Gas exchange valve drive for a valve-controlled combustion engine |
| 06/24/2004 | US20040118372 Surface treating methods of titanium parts |
| 06/24/2004 | US20040118366 Valve actuation in combustion engines with artificial muscles |
| 06/24/2004 | DE202004004679U1 Valve, and especially inlet or exhaust valve in piston engine, has sump chamber above valve head and in which cam which operates valve is located or submerges when valve is operated |
| 06/24/2004 | DE10316172A1 Cylinder head for an internal combustion engine comprises cooling channels lying within an insert and sealed off from a cylinder head base material by an intermediate wall |
| 06/24/2004 | DE10258901B4 Ventilsteuerung für ein Ventil einer Brennkraftmaschine Control valve for a valve of an internal combustion engine |
| 06/24/2004 | DE10255447A1 Ventilsitz und Verfahren zur Herstellung eines Ventilsitzes Valve seat and method for producing a valve seat |
| 06/23/2004 | EP1430202A1 Actuator for actuating a lift valve |
| 06/22/2004 | US6752883 Free-cutting Ni-base heat-resistant alloy |
| 06/22/2004 | US6752398 Valve stem seal assembly |
| 06/22/2004 | US6752116 Connection between two shaft ends, positioned coaxially one behind the other, of a gas shuttle valve in an internal combustion engine and a valve actuator |
| 06/17/2004 | US20040112327 Direct injection internal combustion engine |
| 06/16/2004 | CN1153892C Valve spring seat structure for internal combustion engine |
| 06/15/2004 | US6748971 Discharge valve assembly of fluid machinery |
| 06/10/2004 | WO2004048756A1 Valve seat and method for producing a valve seat |
| 06/10/2004 | US20040107936 Valve stem seal with built-in sprue |
| 06/10/2004 | CA2448610A1 Valve stem seal with built-in sprue |
| 06/09/2004 | EP1301693B1 Gas exchange valve arrangement and valve seat construction with a ring-shaped groove |
| 06/09/2004 | CN1503885A Linear indicator for a valve |
| 06/09/2004 | CN1503708A High mechinability iron base sintered alloy for valve seat inserts |
| 06/08/2004 | US6745738 Pneumatic valve return spring |
| 06/03/2004 | US20040104537 Valve stem seal assembly |
| 06/03/2004 | US20040103876 Internal combustion engine comprising direct injection and a method for operating the same |
| 06/03/2004 | US20040103753 Hard particle, wear-resistant iron-base sintered alloy, method of manufacturing the same, and a valve seat |
| 06/02/2004 | CN2619055Y Air valve guide rod oil seal for motorcycle |
| 06/02/2004 | CA2448885A1 Valve stem seal assembly |
| 06/01/2004 | US6742541 Linear indicator for a valve |
| 05/26/2004 | EP1421263A1 Detachable connection for coupling a gas exchange valve of an internal combustion engine to an actuator |
| 05/26/2004 | EP1421262A1 Valve mechanism comprising a variable cross-section of a valve opening |
| 05/26/2004 | EP1421261A1 Valve mechanism with a variable valve opening cross-section |
| 05/26/2004 | EP1421260A1 Valve mechanism with a variable valve opening diameter |
| 05/26/2004 | CN2617930Y Universal gasoline engine air valve position limiter |
| 05/26/2004 | CN1499047A Method and device for cooling valve |
| 05/21/2004 | WO2004042318A1 Device for measuring the lift of poppet valves |
| 05/19/2004 | EP1313888B1 Low cost, corrosion and heat resistant alloy for diesel engine valves |
| 05/19/2004 | DE10251664A1 Valve stroke measurement device, especially for a combustion engine, has an inductive path sensor with a flush magnetic metallic housing integrated in the valve shaft with a degree of axial play so that a fixed coil detects it |
| 05/19/2004 | DE10249941A1 Method for cooling of a valve esp. outlet valve of two-stroke Diesel engine with coolant flow through valve interrupted during every valve stroke, over part of that stroke |
| 05/19/2004 | CN1497056A Production method of iron base sintered alloy valve seat |
| 05/13/2004 | US20040089254 Cam contacting devices |
| 05/12/2004 | EP1418249A1 Hard particle, wear-resistant iron-base sintered alloy, method of manufacturing the same, and valve seat |
| 05/06/2004 | US20040084005 Cylinder head |
| 05/06/2004 | EP1416127A1 Valve for combustion engine with a shield integral with the stem |
| 05/06/2004 | DE19961064B4 Vorrichtung und Verfahren zum Detektieren von Fehlerzuständen für einen Verbrennungsmotor Apparatus and method for detecting fault conditions for a combustion engine |
| 05/06/2004 | DE19908208B4 Motorenbauteil mit Legierungsbeschichtung und seine Verwendung Engine component with alloy coating and its use |
| 05/06/2004 | DE10220195A1 Cylinder head for four stroke internal combustion engine has inlet valve with cylindrical valve seat fastened to cylinder head, and movement plate pressed in direction of valve seat by at least one spring |
| 05/04/2004 | US6729287 Connection between a shaft end of a gas exchange valve in an internal combustion engine and a sleeve-shaped control piston on a tappet |
| 04/28/2004 | EP1412625A1 Cylinder head for an internal combustion engine |
| 04/28/2004 | EP1412619A1 Desmodromic valve gear |
| 04/22/2004 | WO2004033146A1 Assembly device |
| 04/21/2004 | EP1411222A1 Head cylinder for direct injection combustion engine and engine with this head cylinder |
| 04/21/2004 | EP1411211A1 Valve system for a motor vehicle |
| 04/21/2004 | CN1490100A Manufacture of lightweight refractory titanium-aluminum based alloy exhaust gates |
| 04/15/2004 | US20040069262 Exhaust valve guide for engines |
| 04/15/2004 | US20040069094 Base matrix phase containing a hard particle dispersed at 5 to 40% by area ratio, a porosity is 12 to 25% by volume ratio, and a density after sintering is 6.1 to 6.9 g/cm3. |
| 04/14/2004 | CN2611613Y Wear resistant engine |
| 04/13/2004 | US6718932 Lightweight engine poppet valve |
| 04/08/2004 | US20040065308 Internal combustion engine and working cycle |
| 04/08/2004 | US20040065285 Variable engine valve actuator |
| 04/07/2004 | EP1405929A1 Production process for Fe-based sintered alloy valve seat |
| 04/07/2004 | EP1405928A1 SINTERED ALLOY, METHOD FOR PRODUCTION THEREOF AND VALVE SHEET |
| 04/07/2004 | EP1404955A1 Internal combustion engine |
| 04/07/2004 | CN1487175A Manufacture of air valve seat specially for gas engine |
| 04/06/2004 | US6715465 Internal combustion engine with valve control |
| 04/01/2004 | US20040060539 Direct injection type internal combustion engine |
| 03/30/2004 | US6712872 Heat and wear resistance; valve for internal combustion engines |
| 03/30/2004 | US6712871 Sintered alloy for valve seat having excellent wear resistance and method for producing the same |
| 03/30/2004 | US6712039 Internal combustion engines |
| 03/24/2004 | EP1399657A2 Conjugate vortex stratified exhaust gas recirculation system |
| 03/18/2004 | WO2004022945A1 Reciprocating piston engine and piston therefor |
| 03/18/2004 | US20040050354 Valve mechanism comprising a variable cross-section of a valve opening |
| 03/11/2004 | WO2004020801A1 Fourstroke-engine with nonconstant compression |
| 03/11/2004 | US20040045644 T-tial alloy-based component comprising areas having a graduated structure |
| 03/09/2004 | US6701961 Reed valve |
| 03/09/2004 | US6701879 Internal combustion engine |
| 03/04/2004 | WO2004018853A1 Improvement in a 4-stroke internal combustion engine |
| 02/26/2004 | DE20318207U1 Inlet and outlet valve system for internal combustion engine has single poppet valve in center of piston to let mixture into combustion chamber and two poppet valves to release exhaust gases |
| 02/26/2004 | DE10247196A1 Reciprocating piston internal combustion engine has exhaust valve connecting working chamber to exhaust passage in region of piston's BDC position, and piston passes over exhaust port during movement into BDC position |
| 02/25/2004 | EP1391538A2 Chrome plated engine valve |
| 02/25/2004 | EP1390651A1 Linear indicator for a valve |
| 02/24/2004 | US6694961 Internal combustion engine |
| 02/19/2004 | US20040031461 Chrome plated engine valve |
| 02/19/2004 | US20040031454 Internal combustion engine |
| 02/19/2004 | DE20214308U1 Montagevorrichtung Mounting device |
| 02/19/2004 | DE10209346B4 Herstellungsverfahren für ein mehrteiliges Ventil für Verbrennungsmotoren Manufacturing method for a multi-piece valve for internal combustion engines |
| 02/18/2004 | CN1138912C Structure of IC engine air vent |
| 02/17/2004 | US6691663 Four-stroke internal combustion engine cylinder head |
| 02/12/2004 | US20040025820 Valve mechanism with a variable valve opening cross-section |
| 02/11/2004 | CN2603209Y Fuel-saving oil seal for valve stem guide |
| 02/10/2004 | US6688268 Connection between a shaft end of a gas exchange valve of an internal combustion engine and a final control element of a valve actuator |
| 02/05/2004 | US20040021122 Valve seal assembly with bottom flange seal |
| 02/05/2004 | DE10325462A1 Step valve seat cylinder head, for an IC motor, has a step structure for the gas outlet valve seat over the air intake, for an automatic change after the second stroke and a shaped outlet channel for non-hazardous emissions |
| 02/05/2004 | DE10233072A1 Combustion engine valve insert positioning testing method in which the press-fit positioning of valve seats in the cylinder head is tested by injection of a partial sealing body and then application of an over or under pressure |
| 02/04/2004 | EP1386062A1 Liquid-cooled valve seat ring |