Patent application number | Description | Published |
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 |
20110197835 | DEVICE FOR THE VARIABLE ADJUSTMENT OF VALVE LIFT CURVES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - A device for the variable adjustment of valve lift curves of gas exchange valves of an internal combustion engine, which has a hydraulic consumer, a camshaft and a volume accumulator. The camshaft is arranged in the internal combustion engine in a rotatably mounted manner by camshaft bearings. The interior of the camshaft has a cavity. Bores are formed on the camshaft in the region of the camshaft bearings and, via the bores, the cavity communicates with the camshaft bearings. The volume accumulator is arranged in the cavity and has a housing which extends in a region of at least one camshaft bearing. | 08-18-2011 |
20110247577 | VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE - A valve drive of an internal combustion engine is provided, having a camshaft ( | 10-13-2011 |
20120006293 | MECHANICAL VALVE CLEARANCE COMPENSATION ELEMENT WITH TWO-PART ADJUSTING BOLTS - Valve clearance compensation element ( | 01-12-2012 |
20120199230 | VOLUME ACCUMULATOR - A volume accumulator ( | 08-09-2012 |
20120199231 | VOLUME ACCUMULATOR - A volume accumulator ( | 08-09-2012 |
20120227691 | SWITCHABLE PRESSURE SUPPLY DEVICE - A switchable device for supplying at least one consumer of an internal combustion engine with pressure. The device includes the following: a cavity formed inside a camshaft; a displacement element arranged in the cavity, which element can be displaced between a first end position and a second end position, the displacement element having a pressure surface which at least partially delimits a fluid connectible accumulator chamber together with the wall of the cavity, the accumulator chamber being connectible to a pressure source in a fluid-conducting manner; an energy accumulator interacts with the displacement element, the displacement element being displaceable against the force of the energy accumulator from the first end position into the second end position under the effect of pressure applied to the accumulator chamber; a locking mechanism by which the displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, has a switch element that can be brought into at least two switching positions and interacts with the locking mechanism in such a manner that the locked state of the displacement element is maintained in a first switching position and is released in a second switching position. | 09-13-2012 |
20120240888 | SWITCHABLE PRESSURE SUPPLY DEVICE COMPRISING A PASSIVE AUXILIARY PRESSURE ACCUMULATOR - A switchable device for supplying at least one consumer of an internal combustion engine with pressure. The device includes the following: a cavity formed inside a camshaft; a first displacement element arranged in the cavity, which element can be displaced between a first end position and a second end position, the first displacement element having a first pressure surface which at least partially delimits a first accumulator chamber together with the wall of the cavity; a first energy accumulator which interacts with the first displacement element, the first displacement element being displaceable against the force of the first energy accumulator from the first end position into the second end position under the effect of pressure applied to the first accumulator chamber; a locking mechanism by which the first displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, having a switch element that can be brought into at least two switching positions and interacts with the locking mechanism in such a manner that the locked state of the first displacement element is maintained in a first switching position and is reversed in a second switching position; a second displacement element arranged in the cavity, which element can be displaced between a first end position and a second end position, the second displacement element having a second pressure surface which at least partially delimits a second accumulator chamber together with the wall of the cavity; a second energy accumulator which interacts with the second displacement element, the second displacement element being displaceable against the force of the second energy accumulator from the first end position into the second end position under the effect of pressure applied to the second accumulator chamber; the first accumulator chamber and the second accumulator chamber communicating with each other and being connectible to a pressure source in a fluid-conducting manner. | 09-27-2012 |
20120304953 | SWITCHABLE PRESSURE SUPPLY DEVICE - A switchable device for supplying at least one consumer of an internal combustion engine with pressure. The device includes the following: a housing having a housing interior; a displacement element arranged in the housing, which element can be displaced between a first end position and a second end position, the displacement element having a pressure surface which at least partially delimits a fluidically connectible accumulator chamber together with the wall of the housing interior, the accumulator chamber being connectible to a pressure source in a fluid-conducting manner; an energy accumulator which interacts with the displacement element, the displacement element being displaceable against the force of the energy accumulator from the first end position into the second end position under the effect of pressure applied to the accumulator chamber; a locking mechanism by which the displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, has a switch element that can be brought into at least two switching positions and interacts with the locking mechanism in such a manner that the displacement element can be locked and unlocked in a first switching position of the switch element and cannot be locked and not unlocked in a second switching position of the switch element. | 12-06-2012 |
20130008399 | PRESSURE ACCUMULATOR ARRANGEMENT FOR A CAMSHAFT ADJUSTING SYSTEM - A pressure accumulator arrangement in a camshaft for a camshaft adjusting system of an internal combustion engine, having at least one pressure accumulator and at least one control valve, characterized in that the pressure accumulator and control valve are connected to form a structural unit. | 01-10-2013 |