Abstract:
The invention relates to a camshaft adjuster for a motor vehicle, comprising a controller and/or regulator unit (11) which is designed to adjust a phase position of at least one camshaft (12) in a standard operational mode to an at least temporarily constant phase position. According to the invention, the controller and/or regulator unit (11) can be operated in an engine start mode which is provided for adjusting a valve opening angle range (α) which is smaller than a geometric standard opening angle range (β).
Abstract:
The invention relates to a valve drive control device, in particular for an internal combustion engine, for controlling a valve drive, comprising at least one control armature element (10), which is provided for a control movement, and a control element (11), which is provided for coupling to a control gate (12) of a cam element (13). It is proposed that the valve drive control device has a coupling unit (14) which is provided for the purpose of coupling the control armature element (10) and the control element (11) movably to each other with at least one degree of freedom.
Abstract:
The invention relates to a valve gear mechanism, especially of an internal combustion engine, comprising an actuation device (10) having at least one switching element (11) which is adapted to switch at least one cam element (13, 14) by means of a shifting gate (12). The valve gear mechanism is characterized by comprising a change-over device (15) for changing over a direction of switching of the switching element (11).
Abstract:
The invention relates to an actuating device having at least one electrical and/or electromagnetic actuation unit (10). The invention proposes that at least two activation sequences performed by different actuation elements (12, 14) of the actuation unit (10) be associated with at least two different electrical and/or electromagnetic states of the actuation unit (10).
Abstract:
The invention relates to an internal combustion engine valve train device for a motor vehicle, comprising at least one exhaust valve actuating unit (10) and one intake valve actuating unit (11) and an operating mode changeover unit (12) which is provided for switching the exhaust valve actuating unit (10) into an exhaust gas recirculation operating mode in order to adjust an internal exhaust gas recirculation. The invention proposes that the operating mode changeover unit (12) is provided for additionally switching the intake valve actuating unit (11) into an exhaust gas recirculation operating mode in order to adjust the internal exhaust gas recirculation.
Abstract:
The invention relates to a valve train device, in particular for an internal combustion engine of a motor vehicle, comprising at least one cam element (10a, 11a, 12a; 10b), which is mounted in a rotationally and axially movable manner and which is provided for actuating at least one gas exchange valve, and comprising at least one gate element (13a; 13b) which has at least one shifting gate (14a, 15a, 16a; 14b) for a valve lift changeover, said shifting gate being provided for converting a rotational movement (17a) of the at least one cam element (10a, 11a, 12a; 10b) into an axial displacement movement (18a) of the at least one cam element (10a, 11a, 12a; 10b). The valve train device also comprises at least one support element (19a; 19b) which is rotationally fixed to the at least one cam element (10a, 11a, 12a; 10b) and which has at least one limiting element (20a, 21a; 20b) that is provided in order to limit the axial displacement movement (18a) of the at least one cam element (10a, 11a, 12a; 10b). The gate element (13a; 13b) is mounted in a rotationally fixed manner for the purpose of the valve lift changeover.
Abstract:
The invention relates to a camshaft adjusting device for an internal combustion engine in a motor vehicle, comprising at least one mechanical braking unit (10) that includes at least one stationary actuator (11) having at least one first braking surface (12) and at least one second braking surface (13) movable relative to the first braking surface (12). The braking unit (10) also includes a brake disk (14) which is functionally separated from the actuator (11), is arranged at least in part between the braking surfaces (12, 13) of the actuator (11), and is to be connected to an adjusting input member (15).