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Variable driver

An actuated, variable technology applied to engine elements, machines/engines, non-mechanically actuated valves, etc.

Inactive Publication Date: 2015-01-28
NINGBO HOYEA MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the pulling force, the thrust force between the driving part rod and the valve stem is generally much larger, especially in the application of the exhaust valve of the diesel engine, when the cylinder pressure releases the brake, a huge thrust force will be transmitted, and the general flexible coupling will be an extreme challenge

Method used

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Embodiment Construction

[0033] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, but the protection scope of the present invention is not limited by these embodiments. The terms "top" and "bottom" or "upper" and "lower" or "left" and "right" in this manual are only used to indicate the relative positions of the various parts of the driver in the figure, and There is no restriction on the installation position or orientation of the variable actuator itself.

[0034] figure 1 The variable drive of the first embodiment of the present invention is shown,

[0035]Comprising drive cylinder 20, have drive cylinder wall 22, drive cylinder first end 24 and drive cylinder second end 26; Drive component 30, be arranged in drive cylinder wall 22, can drive cylinder first end 24 and drive Move between the cylinder second e...

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PUM

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Abstract

The invention provides a variable driver. The driver comprises a driving cylinder, a driving part, a driving part rod, a load, a load rod and a tensile force coupler, wherein the driving cylinder is provided with a driving cylinder wall, a first driving cylinder end part and a second driving cylinder end part; the driving part is arranged on the driving cylinder wall, and can move between the first driving cylinder end part and the second driving cylinder end part; the driving part rod is connected to the driving part, forms a moving unit with the driving part and is provided with a driving part rod end surface; the load rod is connected to the load and forms a moving unit with the load and is provided with a load rod end surface, and the load rod end surface faces the driving part rod end surface so as to transfer thrust between the driving part rod and the load rod; the tensile force coupler is connected with the driving part rod and the load rod so as to transfer the tensile force between the driving part rod and the load rod. That the great thrust is directly transferred between the driving part rod and the load rod by the driving part rod and the load rod through rigid contact becomes possible, and the service life of the coupler of the variable driver can be ensured.

Description

technical field [0001] The present invention relates to a variable drive. Background technique [0002] In the prior art, various variable valve actuation (Variable Valve Actuation, VVA) systems can be used to effectively control valve timing and lift, so as to improve engine performance, fuel economy, injection and other characteristics. These systems can mainly be divided into mechanical, electro-hydraulic, electro-pneumatic and electro-magnetic forms according to the device or drive controlled. According to the scope of control, it can be divided into variable valve lift and timing, variable valve timing and variable valve lift. They can also be divided into cam-based and camless forms. [0003] In the case of a cammed system, the conventional engine cam system is maintained and slightly modified to indirectly control valve timing and / or valve lift. In a camless system, the conventional engine cam system is completely replaced with an electrohydraulic, electropneumatic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L9/02F01L9/04F01L1/34F01L9/10F01L9/20
CPCF01L1/34F01L2013/118F01L9/16F01L9/10F01L9/20
Inventor 娄征文韶
Owner NINGBO HOYEA MACHINERY MFG