阅读说明：本技术 用于尤其是机动车的内燃机的气门传动机构 (Valve drive for an internal combustion engine, in particular of a motor vehicle ) 是由 M·梅林 于 2018-12-17 设计创作，主要内容包括：本发明涉及一种用于尤其是机动车的内燃机的气门传动机构(10),包括：至少一个可绕转动轴线(14)转动的凸轮轴(12)；至少一个抗转动连接至凸轮轴(12)的且在凸轮轴(12)的轴向上相对于凸轮轴可移动的滑槽部件(16),该滑槽部件具有带有至少一个切换滑槽(22)的外周侧面(20),借助该切换滑槽能将滑槽部件(16)的转动运动转换为滑槽部件(16)在凸轮轴(12)的轴向上相对于凸轮轴的移动；气门传动机构还包括至少部分接纳在凸轮轴(12)中的且借助滑槽部件(16)在凸轮轴(12)的轴向上相对于凸轮轴可移动的操作杆(24),借助该操作杆可影响至少一个换气门的作动。(The invention relates to a valve train (10) for an internal combustion engine, in particular of a motor vehicle, comprising: at least one camshaft (12) rotatable about a rotational axis (14); at least one gate element (16) which is connected to the camshaft (12) in a rotationally fixed manner and is movable in the axial direction of the camshaft (12) relative to the camshaft, which gate element has an outer circumferential side (20) with at least one shift gate (22) by means of which a rotational movement of the gate element (16) can be converted into a movement of the gate element (16) in the axial direction of the camshaft (12) relative to the camshaft; the valve drive further comprises an actuating lever (24) which is at least partially accommodated in the camshaft (12) and is movable relative to the camshaft (12) in the axial direction thereof by means of the gate member (16), by means of which actuating lever the actuation of at least one gas exchange valve can be influenced.)

1. A valve train (10) for an internal combustion engine, in particular of a motor vehicle, having: at least one camshaft (12) rotatable about a rotational axis (14); at least one gate element (16) which is connected to the camshaft (12) in a rotationally fixed manner and can be displaced in the axial direction of the camshaft (12) relative to the camshaft, having an outer circumferential side (20) with at least one shift gate (22) by means of which a rotational movement of the gate element (16) can be converted into a displacement of the gate element (16) in the axial direction of the camshaft (12) relative to the camshaft; the valve drive further comprises an actuating rod (24) which is at least partially accommodated in the camshaft (12) and can be displaced relative to the camshaft (12) in the axial direction thereof by means of the gate member (16), by means of which actuating rod the actuation of at least one gas exchange valve can be influenced, characterized in that,

-at least one sleeve (26,28), wherein at least one longitudinal zone (38,40) of the gate member (16) which is rotatable about the axis of rotation (14) relative to said at least one sleeve (26,28) is received in said at least one sleeve (26,28), and wherein said at least one sleeve (26,28) is movable relative to the camshaft (12) in the axial direction thereof;

-at least one form-fitting element (50) which is arranged on the at least one sleeve (26,28) and which engages into a gate region (42) of the shift gate (22) which is arranged at least partially in the longitudinal region (38, 40); and

-at least one fixing mechanism (54) which is switchable between at least one release state as a first state, in which the fixing mechanism (54) permits displaceability of the at least one sleeve (26,28) relative to the camshaft (12), and at least one fixing state as a second state, in which the displaceability of the at least one sleeve (26,28) relative to the camshaft (12) in the axial direction of the camshaft (12) is inhibited by means of the fixing mechanism (54), wherein, upon relative rotation of the gate component (16) and the at least one sleeve (26,28), the form-fitting piece (50,52) moves along the gate region (42,46) and, because the fixing mechanism (54) switches from one of the states to the other, causes the gate component (16) to cooperate with the form-fitting of the gate region (42,46) in the axial direction of the camshaft (12) Moves relative to the camshaft.

2. Valve train (10) according to claim 1, characterized in that the fixing means (54) has at least one magnet, in particular an electromagnet, for providing a magnetic force by means of which the displaceability of the at least one sleeve (26,28) is inhibited in the fixed state.

3. Valve train (10) according to claim 1 or 2, characterized in that a plurality of form-fitting elements (50,52) are provided.

4. Valve train (10) according to one of the preceding claims, characterized in that at least one spring element (72) is provided in the camshaft (12), by means of which spring element the actuating lever (24) can be mounted on the camshaft (12) in the axial direction thereof.

5. Valve train (10) according to one of the preceding claims, characterized in that at least one spring (60,62) is provided, by means of which the at least one sleeve (26,28) is moved in the axial direction of the camshaft (12) relative to the cam shaft towards the fixing means (54).

6. A valve train (10) according to any one of the preceding claims,

-at least one second sleeve (26,28), wherein a second longitudinal section (40) of the chute component (16) which is rotatable about the axis of rotation (14) relative to the second sleeve (26,28) is received in the second sleeve (26, 28); and

-at least one second positive-forming element (52) which is arranged on the second sleeve (26,28) and which is snapped into at least part of the shift gate (22) arranged in a second gate region (46) in the second longitudinal region (40).

7. Valve train (10) according to claim 6, characterized in that a plurality of second positive engaging elements (52) are provided.

8. Valve train (10) according to claim 6 or 7, characterized in that the at least one sleeve (26,28) is movable relative to the camshaft (12) in the axial direction thereof in the released state, wherein the other sleeve (26) is fixed relative to the camshaft (12) in the axial direction thereof not only in the released state but also in the fixed state.

9. Valve train (10) according to claim 6 or 7, characterized in that the two sleeves (26,28) are movable in the released state in the axial direction of the camshaft (12) relative to the camshaft.

10. Valve train (10) according to one of claims 6 to 9, characterized in that at least a part of the fixing means (54) is arranged between the sleeves (26,28) in the axial direction of the camshaft (12).