摘要:
The invention relates to a valve control system (1) comprising at least one adjustable camshaft (10) having an outer shaft (11), and having an inner shaft (12) extending through the outer shaft (12), and having at least one phase splitter (13) comprising a first actuator (14), and a second actuator (15) that is rotatable with respect to the first actuator (14), wherein the outer shaft (11) and the inner shaft (12) are each connected to one actuator (14, 15). According to the invention, at least one stop (16) is provided that is coupled with the outer shaft (11) in a rotationally fixed manner. A counter-stop (17) is provided that is coupled with the inner shaft (12) in a rotationally fixed manner, wherein the maximum angle of rotation of the inner shaft (12) in the outer shaft (11) is determined by an abutting of the stop (16) on the counter-stop (17).
摘要:
The invention relates to a valve train (1) for actuating gas exchange valves of an internal combustion engine having a first camshaft (10) which is received such that it can rotate in a first shaft axis (11), and having a second camshaft (20) which is received such that it can rotate in a second shaft axis (21), wherein at least one of the camshafts (10, 20) is configured as an adjustable camshaft (10, 20) and has an outer shaft (12, 22), in which an inner shaft (13, 23) is received such that it can rotate, wherein at least one of the camshafts (10, 20) is drive-connected via a drive means (2) to a crankshaft (3) of the internal combustion engine, and wherein a phase adjusting member (30) is provided, by way of which at least one inner shaft (13, 23) can have its phase position changed relative to the phase position of at least one outer shaft (12, 22) of the camshaft (10, 20). It is provided according to the invention that the phase adjusting member (30) has an arrangement which is spaced apart from both shaft axes (11, 21).
摘要:
The present invention relates to a variable valve timing camshaft (1) having a hollow outer shaft (10) and an inner shaft (11) rotatably received in the outer shaft (10), wherein the inner shaft (11) has a cavity (12) into which oil can be injected, and wherein the outer shaft (10) has at least one first radial opening (13) and the inner shaft (11) has at least one second radial opening (14), so that when the first radial opening (13) and the second radial opening (14) are aligned oil can flow between the cavity (12) and the outside of the outer shaft (10). According to the invention the first radial opening (13) has a larger cross-section on the inside (15) of the outer shaft (10) than on the outside (16) of the outer shaft (10).
摘要:
The invention relates to a camshaft comprising a support shaft (3) embodied as a hollow shaft. An inner shaft (5) is concentrically arranged in the interior of the support shaft, said inner shaft (5) being rotatable relative to the support shaft (3). A first cam segment (7) is arranged on the support shaft (3), said cam segment having a first cutout (9) for admitting the support shaft (3), being rotatable relative to the support shaft (3) and being non-rotatably connected to the inner shaft (5) via a first opening (11) in the support shaft (3). The first cam segment (7) comprises at least two cam contours (13, 15). Furthermore, the connection between the inner shaft (5) and the first cam segment (7) is designed in such a way that the first cam segment (7) can be axially displaced relative to the inner shaft (5) and to the support shaft (3).