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Drive device

A driving device and actuating mechanism technology, applied in valve devices, engine components, machines/engines, etc., can solve the problems of inaccurate adjustment, inability to adjust the stroke of intake and exhaust valves, etc., to reduce energy consumption, flexible and smooth movement , The effect of improving work reliability and stability

Active Publication Date: 2013-06-12
杨鲁川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the shortcoming of this device is the same as the above-mentioned shortcoming in the prior art, all can not do bigger adjustment to the stroke of intake and exhaust valve, also can't it be adjusted accurately

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] figure 1 An embodiment of the drive device according to the invention is schematically represented. Such a drive is used in particular to drive the movement of a cylinder valve stem of an internal combustion engine.

[0024] Such as figure 1 As shown, in this embodiment, the driving device has a cam 1 mounted on a drive shaft 13 . The drive shaft 13 is driven by other power devices, thereby driving the cam 1 to rotate.

[0025] What cooperates with cam 1 is a rocking bar 3. In this embodiment, the rocker 3 is a bar-shaped plate. The rocking bar 3 extends relatively long in the horizontal direction in the figure, and relatively narrow in the vertical direction. One end of the rocking rod 3, the right end as shown in the figure, is provided with a shaft hole 17.

[0026] Such as figure 1 As shown, the upper working surface 12 of the rocking bar 3 is provided on the upper edge of the rocking bar 3; The radius of curvature of the upper and lower working curved surfa...

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PUM

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Abstract

A driving device includes a cam (1), a rocker(3) actuated by the cam (1), and an actuator (2) for adjusting the position of the rocker (3). The actuator (2) includes: at least one connecting rod (4), one end of which is supported on an eccentric shaft (9), and the other end is articulated with one end of the rocker (3) by a second supporting shaft (5); a guiding support (8), on which the end of the rocker (3) articulated with the connecting rod (4) is movably supported. By using such actuator, the driving arrangement according to the present invention can adjust the stroke and the opening phase of the inlet and outlet valves of a cylinder accurately in a large range.

Description

technical field [0001] The invention relates to a driving device, in particular to a driving device for opening and closing an intake and exhaust valve of an internal combustion engine. Background technique [0002] European patent EP 1 672 183 A1 discloses a rocker for positively controlling valve actuation. Wherein, one end of the rocker is connected with an adjustment device, and a part of the adjustment device can be stretched out so as to adjust the position of the end of the rocker. A rocker roller is arranged at the middle part of the rocker, and the shaft of the roller is connected with the supporting shaft of the roller wrapped on the outer circumference of the cam through a connecting piece. However, the adjustment of the opening stroke of the valve by this forced control device is limited, that is, the stroke of the valve cannot be adjusted substantially. Simultaneously, this device also cannot adjust the opening phase of the valve. [0003] Japanese Patent Lai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/18F01L13/00
CPCF01L13/0021F01L13/0026F01L1/185
Inventor 杨鲁川
Owner 杨鲁川
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