Patent application number | Description | Published |
20080289595 | Camshaft Adjuster Comprising a Locking Mechanism - A camshaft adjuster ( | 11-27-2008 |
20090056656 | APPARATUS FOR THE VARIABLE SETTING OF CONTROL TIMES OF GAS-EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - An apparatus ( | 03-05-2009 |
20090188453 | DEVICE FOR SETTING THE RELATIVE ROTATIONAL POSITION OF A CAMSHAFT OF AN INTERNAL COMBUSTION ENGINE RELATIVE TO A CRANKSHAFT DRIVING THE CAMSHAFT - A device for setting the relative rotational position of a camshaft ( | 07-30-2009 |
20090314234 | DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE | 12-24-2009 |
20100000479 | DEVICE FOR VARIABLY ADJUSTING CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE | 01-07-2010 |
20100037841 | APPARATUS FOR THE VARIABLE SETTING OF THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - An apparatus for variable setting of control times of gas exchange valves of an internal combustion engine which has an outer and inner rotor rotatable relative to the former, with one component drive-connected to a crankshaft and the other drive-connected to a camshaft. The apparatus has at least one pressure space, which are each divided into two pressure chambers acting counter to one another. The apparatus has a plurality of pressure medium channels, via which pressure medium is fed to or led away from the pressure chambers. Additionally, the apparatus has a plurality of rotational-angle limitation devices assuming an unlocked and locked state. The locking states are set by the supply of pressure medium to or discharge of pressure medium from the respective rotational-angle limitation apparatus. Furthermore, a method for controlling an apparatus for variable setting of control times of gas exchange valves of an internal combustion engine is disclosed. | 02-18-2010 |
20100242876 | MODULAR CONSTRUCTION CAMSHAFT ADJUSTER WITH A CHAIN OR BELT WHEEL - A modular construction camshaft adjuster for the camshaft drive of an internal combustion engine with a chain or belt wheel, which has at least one wheel rim facing radially outwards with tooth engagement recesses, an annular wheel plate around a central circular opening and an essentially cylindrical wheel wall with a wall thickness, projecting in an axial direction from the annular wheel plate, such that the wheel wall and the wheel plate together form a cup shape. The minimum wall thickness of the essentially cylindrical wheel wall beneath the at least one wheel is equal to half the tooth engagement recess and the cup-shaped chain or belt wheel is made from a lightweight material. | 09-30-2010 |
20110067657 | CAMSHAFT ADJUSTER WITH LOCKING DEVICE - A camshaft adjuster which has a locking device by which a drive input and drive output part can be rotationally fixedly locked in a locking rotational position. The locking device has a multiplicity of engagement pairs which include one axial bar which is held in the drive input or drive output part and a bar slot which is formed in the respective other part. The engagement pairs are designed such that, during an adjustment of the drive output part in the drive direction, the bars can be placed in successive engagement with the bar slots in a relative rotational position between an end rotational position, which lags behind in the drive direction, and the locking rotational position. The bar slots prevent an adjustment of the drive output part counter to the drive direction and permit an adjustment in the drive direction until the locking rotational position is reached. | 03-24-2011 |
20110239966 | DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a device ( | 10-06-2011 |
20120079998 | DEVICE FOR THE VARIABLE ADJUSTING OF THE CONTROL TIMING OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE | 04-05-2012 |
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 |
20130087112 | DEVICE FOR CONTROLLING THE VALVE CONTROL TIMES OF AN INTERNAL COMBUSTION ENGINE | 04-11-2013 |
20140020643 | CAMSHAFT PHASER - An arrangement of a camshaft phaser ( | 01-23-2014 |
20140271267 | CONTROLLABLE COOLANT PUMP HAVING A FLUIDIC ACTUATOR - A controllable coolant pump for a cooling circuit of an internal combustion engine having a pump housing with an inner bore, a shaft drivable via a pulley mounted rotatably via a first bearing and a second bearing, wherein the shaft is configured at least partially as a hollow shaft and has a longitudinal axis, wherein a rotor is fastened to one end of the shaft, which rotor has an idler pulley and vanes which project into a suction chamber to suck water via a suction connector of the pump housing into the suction chamber to an annular channel of the pump housing, wherein the idler pulley can be displaced axially via a push rod connected to an actuator. The fluidic actuator has a first pressure chamber and a second pressure chamber. The weight and the installation space requirement of the controllable coolant pump can be reduced. | 09-18-2014 |