Abstract: A wiper blade for cleaning vehicle windscreens includes a wiper rubber with groove-like holding fixtures formed in the longitudinal sides of the wiper rubber, in which spring strips are partially contained. The spring strips project laterally from the holding fixtures with their longitudinal sides, and having an adapter element consisting at least essentially of plastic for the at least indirect attachment of the wiper blade to a wiper arm. The adapter element exhibits groove-like guides which are disposed on the two longitudinal sides of the adapter element on sides facing one another, wherein the guides encompass the two spring strips on the sections of the spring strips projecting from the holding fixtures. The adapter element is connected to at least one separate reinforcing element which encompasses the spring strips on the sections of said spring strips projecting from the holding fixtures at least section-wise.

Abstract: A pressure accumulator includes a housing having a housing cavity, a piston axially displaceable in the housing cavity between a first final position and a second final position and having a pressure surface which together with a wall of the housing cavity delimits at least partially a reservoir connectable to an ICE consumer in a fluid-conveying manner, an energy store cooperating with the piston, the piston being displaceable against the force of the energy store from the first final position into the second final position in that the reservoir is acted on by pressure using a pressure medium, and a locking device for locking the piston in the second final position. A locking tube is connected to the piston and supported within the housing in an axially shiftable manner, and lockable at an end of the housing facing away from the reservoir with the aid of a locking pin.

Abstract: A device for variable adjustment of the timing of gas exchange valves of an internal combustion engine, which has a hydraulic phase shifting device, a camshaft and a pressurizing medium distributor. The phase shifting device can come into drive linkage with a crankshaft and is rigidly connected to the camshaft. A phase position of the camshaft relative to the crankshaft can be variably adjusted by the phase shifting device. The interior of the camshaft has a cavity that communicates with one or more camshaft bearings which are separate from a rotating pressurizing medium conveyor. The pressurizing medium distributor is disposed in a receiving area of the camshaft. The camshaft has an opening in the area of the pressurizing medium distributor, which communicates with the interior of the camshaft and the pressurizing medium conveyor. A pressurizing medium path is inside the camshaft, which communicates the opening and hydraulic phase shift device.

Abstract: A device for variably adjusting the timing control of gas exchange valves of an internal combustion engine. The device has a hydraulic phase adjustment device, a control valve and an auxiliary pressure source. The phase adjustment device can be brought into driving connection with a crankshaft and a camshaft, the phase adjustment device has at least two counter-working pressure chambers, and a phase relation of the camshaft relative to the crankshaft is variably adjustable by charging of the pressure chambers with pressure medium. The control valve has at least one inflow port and a first and a second working port. The inflow port is connectable to a pressure medium pump, and the first working port is connectable to the first pressure chamber and the second working port to the second pressure chamber.

Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure, comprising: a cavity formed inside a camshaft; a first displacement element arranged in the cavity 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; 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; a second displacement element arranged in the cavity 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 first accumulator chamber and the second accumulator chamber communicating with each other

Abstract: A device for variably adjusting the control times of gas exchange valves of an internal combustion engine. The device has a driving element, an output element, at least one pressure chamber, at least one mechanism limiting the angle of rotation, and a pressure accumulator. A phase angle between the output and driving element is changed by delivering or discharging pressure medium to or from the pressure chambers. The mechanism limiting the angle of rotation has a receiving member and an engaging element to which a force is applied towards the receiving member. When locked, where the engaging element engages into the receiving member, the mechanism limiting the angle of rotation limits the phase angle of the output element relative to the driving element at least to an angular spread. The mechanism limiting the angle of rotation can be unlocked by applying pressure medium to the receiving member.

Abstract: A camshaft adjustment mechanism is provided having a rotor adapted to be connected to a camshaft, a stator arranged around the rotor, and a cover associated with the stator. An advance chamber and a separate retard chamber are formed between the rotor and the stator and separated from each other by a vane extending from the rotor. The camshaft adjustment mechanism further includes a locking apparatus adapted to lock the rotor from rotation. A first oil control valve is associated with the advance chamber and the retard chamber to control oil flow to the advance chamber and the retard chamber. A second oil control valve is associated with the locking apparatus to control oil flow to the locking apparatus.

Abstract: A camshaft adjuster (2) having a vane-type design with a stator (4) and a rotor (6), which can be rotated relative to the stator (4), and at least two pressure chambers (8a, 8b) formed between the stator (4) and the rotor (6). The pressure chambers (8a, 8b) are separated from each other by a radially oriented vane (12) of the rotor (6), wherein the pressure chambers (8a, 8b) can be alternately supplied with a pressure medium. The vane (12) has a radial face (20) and two lateral faces (20) that are directed toward the pressure chambers (8a, 8b). The radial face (20) is sealed by a U-shaped sealing element (26) having a main limb (30) and two side limbs (32) seated against the lateral faces (22). The pressure chambers (8a, 8b) of the camshaft adjuster (2) are sealed particularly reliably by designing check valves (28) on the side limbs (32) of the sealing element (26) and by designing, on the lateral faces (22) of the vane (12), outlets for the pressure medium with which the check valves (28) are associated.

Abstract: 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.

Abstract: A motor control strategy for a hydraulic camshaft adjuster. The motor control strategy has a mechanical central lock which in turn has at least one rotor and one stator, between which hydraulically loadable chamber A and chambers B are provided. Locking pistons supported in an axially displaceable manner are provided in the rotor for the mechanical central lock. A hydraulic system and an electrically controllable solenoid valve are provided. The valve is powered in a controlled manner by a motor control device, which receives an “ignition off” signal; the motor being turned off, and at least one signal for current angular position of the camshaft adjuster, which compares the angular position to at least one zone definition stored in the motor control device, forms control commands from the same, and transmits said the control commands to the electric solenoid valve.

Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure.

Abstract: A pressure storage unit (2) for a camshaft, having an integrated controllable pressure storage device for supporting hydraulic engine components, which includes a housing (4) with a piston (14) mounted movably therein having a piston floor (18), and a spacer element (28) being provided on the piston floor (18).

Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure.

Abstract: A device for camshaft adjustment in an internal combustion engine which has an inner rotor rotationally fixed to a camshaft. The inner rotor is rotationally adjustable relative to an outer rotor that is driveably connected to a crankshaft. At least one hydraulic chamber limited by side walls is introduced into the outer rotor and is divided into two partial chambers by an element extending radially outward from the inner rotor. To lock relative movement between the inner and outer rotor, two locking pins penetrating the inner rotor axially engage in two recesses of one of the side walls designed as a locking cover. To adjust the play of the locking pins in the recesses, at least one of the recesses has a stop surface for the locking pin, the position of which changes as viewed circumferentially with the radial distance from the axis of the inner rotor.

Abstract: 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.

Abstract: A volume store which has a substantially hollow cylindrical housing and a separating element displaceably disposed within the housing. The housing is fixedly disposed within a hollow chamber of a camshaft.

Abstract: A control valve for controlling pressure medium flows, which has a cylindrical valve housing with a housing cavity The housing cavity is open at one side and has an axial outflow port, a radial first working port, a radial second working port, a radial third working port and two radial pressure ports which each open into the housing cavity. A first pressure port is arranged axially between the first working port and the second working port, and a second pressure port is arranged axially between the second working port and the third working port. Also, the control valve has a cylindrical control piston, which is axially movable within the housing cavity and has a piston cavity open at one side in the direction of the outflow port.

Abstract: A device (10) for variably adjusting control times of gas exchange valves (9a, 9b) of an internal combustion engine (1), including an external rotor (22) and an internal rotor (23) that is arranged such that it can rotate in relation to the external rotor. One of the components is drivingly connected to the crankshaft (2) and the other component is drivingly connected to the camshaft (6, 7). At least one pressure chamber (33) is provided and each of the pressure chambers (33) is divided into two counter-working pressure chambers (35, 36). One of the working chambers (35, 36) of each pressure chamber (33) acts as an advance chamber and the other pressure chamber (35, 36) as a retarding chamber. At least two rotation angle limiting devices (42, 43) are provided, with each of the rotation angle limiting devices (42, 43) being able to assume an unlocked state and locked state.

Abstract: A device (10) for variably adjusting control times of gas exchange valves (9a, 9b) of an internal combustion engine (1) is provided, having an external rotor (22) and an internal rotor (23) that is arranged such that it can rotate in relation to the external rotor. One of the components is drivingly connected to the crankshaft (2) and the other component is drivingly connected to the camshaft (6, 7). At least one pressure chamber (33) is provided and each of the pressure chambers (33) is divided into two counter-working pressure chambers (35, 36). One of the pressure chambers (35, 36) of each pressure chamber (33) acts as an advance chamber and the other pressure chamber (35, 36) as a trailing chamber. At least two rotation angle limiting devices (42, 43) are provided, each of the rotation angle limiting devices (42, 43) being able to assume an unlocked state and locking state.

Abstract: A device for variable adjustment of the timing of gas exchange valves of an internal combustion engine, which has a hydraulic phase shifting device, a camshaft and a pressurizing medium distributor. The phase shifting device can come into drive linkage with a crankshaft and is rigidly connected to the camshaft. A phase position of the camshaft relative to the crankshaft can be variably adjusted by the phase shifting device. The interior of the camshaft has a cavity that communicates with one or more camshaft bearings which are separate from a rotating pressurizing medium conveyor. The pressurizing medium distributor is disposed in a receiving area of the camshaft. The camshaft has an opening in the area of the pressurizing medium distributor, which communicates with the interior of the camshaft and the pressurizing medium conveyor. A pressurizing medium path is inside the camshaft, which communicates the opening and hydraulic phase shift device.