| Patent application number | Description | Published |
|---|
| 20100101517 | VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE - A valve drive of an internal combustion engine, which has a reciprocating poppet valve and a spring element which impinges the closed reciprocating poppet valve with force against the action of a valve seat. The force characteristics are substantially independent of the lift characteristics of the reciprocating poppet valve. The spring element is part of a snap-in locking device, which is stationarily mounted in the engine and surrounds the valve stem of the reciprocating poppet valve. The snap-in locking device has snap-in elements arranged in the power flux between the spring element and reciprocating poppet valve. The snap-in elements are supported in the direction of closure of the reciprocating poppet valve on a snap-in surface of the valve stem when the reciprocating poppet valve is closed and on a snap-in surface of the snap-in locking device when the reciprocating poppet valve is open. | 04-29-2010 |
| 20100108006 | CAMSHAFT FOR A VARIABLE LIFT VALVE TRAIN OF AN INTERNAL COMBUSTION ENGINE - A camshaft ( | 05-06-2010 |
| 20100224154 | VALVE-TRAIN ASSEMBLY OF AN INTERNAL COMBUSTION ENGINE - A valve-train assembly of an internal combustion engine is provided with a camshaft ( | 09-09-2010 |
| 20100251982 | VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE - A valve drive ( | 10-07-2010 |
| 20110162597 | VARIABLE COOLANT PUMP - A variable coolant pump for a cooling circuit of an internal combustion engine, that has a pump housing in which is mounted a hollow shaft that is driveable by a pulley. At one end of the hollow shaft an impeller is fastened which has vanes projecting into an inlet chamber and which is firmly connected via axial bridges to a cover disc. Through rotation of the impeller together with the cover disc, water can be sucked into the inlet chamber via an inlet connection piece of the pump housing and conveyed by the vanes into an annular passage of the pump housing. A guide disc with a contour corresponding to the impeller is further arranged between impeller and cover disc. The guide disc is guided by the axial bridges and can be displaced axially via a positioning unit by a piston located inside the hollow shaft. | 07-07-2011 |
| 20110240892 | ELECTROMAGNETIC ACTUATING DEVICE - An electromagnetic actuating device ( | 10-06-2011 |
| 20110247577 | VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE - A valve drive of an internal combustion engine is provided, having a camshaft ( | 10-13-2011 |
| 20120006292 | VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE - A valve drive of an internal combustion engine with variable-lift gas exchange valve actuation. The valve drive has a camshaft with a support shaft and a cam piece arranged on the support shaft for conjoint rotation therewith and to be movable between axial positions. The cam piece has two cam groups of directly adjacent cams with different elevations and, on the end side, the cam piece has an axial slotted guide into which can be coupled an actuating element. The cam piece has a bearing journal which runs between the cam groups and rotatably mounted in a camshaft bearing point arranged in a positionally fixed manner in the engine. Here, the diameter of the bearing journal is larger than the envelope circle diameter of a cam closest to the bearing journal with the cam and camshaft bearing point overlapping axially in an axial position of the cam piece. | 01-12-2012 |
