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Actuating mechanism of variable valve stroke drive device for engine

A technology of actuating mechanism and driving device, which is applied in the direction of engine components, machines/engines, valve devices, etc., which can solve the problems of poor adjustment accuracy, high reliability requirements, and single lift mode, and achieve good stability and durability , reduce fuel consumption, reduce the use of cost effect

Active Publication Date: 2013-05-08
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing non-continuously variable valve lift structure has a single lift mode, which cannot realize most of the engine's working conditions, and the fuel saving effect is not obvious
However, the existing continuously variable valve lift technology has high component costs, complex structure, high reliability requirements for each component, and greater difficulty in engine cylinder head design. In particular, the structure of the adjustment mechanism is more complicated, and the adjustment process Difficult to control, poor adjustment accuracy

Method used

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  • Actuating mechanism of variable valve stroke drive device for engine
  • Actuating mechanism of variable valve stroke drive device for engine
  • Actuating mechanism of variable valve stroke drive device for engine

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention discloses an actuating mechanism of a variable valve stroke drive device for an engine. The actuating mechanism comprise a driving part and a driven part, wherein the driving part comprises a driving shaft and a driving gear sleeved on the driving shaft, the driven part comprises a driven shaft and a pivotal axis. The driven shaft is connected with the pivotal axis, any two of the driving shaft, the driven shaft and the pivotal axis are mutually paralleled, the driven shaft is fixed on a cylinder cover of the engine in a rotating shaft, and the driven shaft is provided with a driven gear meshed with the driving gear. The actuating mechanism is compact in structure, the arrangement of the cylinder cover is convenient, meanwhile, the whole weight of the actuating mechanism is light, the whole weight of the engine is effectively reduced, and therefore fuel oil consumption can be reduced to a certain degree. In addition, gear transmission is simple and reliable, stability and durability are good, failure rates of the actuating mechanism are decreased, the whole service life of the actuating mechanism can be prolonged, and use cost can be reduced.

Description

technical field [0001] The invention relates to the field of automobile construction, in particular to an actuating mechanism for a variable valve lift driving device of an engine. Background technique [0002] In the valve drive mechanism of traditional engines, the valve timing is generally determined based on the local optimization of a narrow operating range of the engine, which is fixed during the working process, and the valve movement law is completely determined by the cam profile. However, the traditional gasoline engine has a single cam profile and cannot adjust the intake air volume according to the engine load. The valve operating parameters of the traditional engine valve train are also fixed, and the determination of the parameters depends on the designed operating point. [0003] The existing non-continuously variable valve lift structure has a single lift mode, which cannot realize most of the working conditions of the engine, and the fuel saving effect is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/00
Inventor 孙青山刘胜强王航周保松
Owner GREAT WALL MOTOR CO LTD
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