Valve control adjustment mechanism, adjustment method and engine

Abstract

The invention discloses a valve control adjusting mechanism and method and an engine. The valve control adjusting mechanism comprises piston air cylinder assemblies, a valve control device and a plurality of protrusions; the piston air cylinder assemblies are distributed in the circumferential direction of a spindle in an array mode, the valve control device is connected with the spindle and comprises a valve control flywheel and a flywheel mounting seat which are connected through a rotary pair, and the protrusions are arranged on the upper end face of the valve control flywheel in the circumferential direction and are in butt joint with valve assemblies in the piston air cylinder assemblies. According to the scheme, the spindle drives the valve control flywheel to rotate, and the valve assemblies are controlled to be opened and closed through the protrusions. Coaxial control over opening and closing of the valve assemblies is achieved, the valve stroke and opening and closing opportunities are very convenient to adjust and are adjusted according to the work state of the engine in real time, and the intake and exhaust efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a valve control adjustment mechanism, an adjustment method of the adjustment mechanism and an engine applying the above adjustment structure. Background technique [0002] At present, the camshaft valve control system is an essential part of most piston engines. The valve control system controls the cooperation between the valve and the cylinder assembly, and important parameters such as valve lift and opening and closing timing have a great impact on engine performance. . The traditional camshaft valve control system has the following disadvantages: [0003] 1. The traditional camshaft valve control system is bulky and complex in structure. Due to the limitation of the cylinder arrangement and the crankshaft structure, the traditional air distribution system and the crankshaft have different axes, and the air distribution system must be driven through a complex synchronous tran...

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Problems solved by technology

[0003] 1. The traditional camshaft valve control system is bulky and complex in structure. Due to the limitation of the cylinder arrangement and the crankshaft structure, the traditional air distribution system and the crankshaft have different axes, and the air distribution system must be driven through a complex synchronous transmission mechanism, so that the air distribution system become complex and not compact

[0004] 2. The control cam of the traditional camshaft valve control system is integrated on the camshaft. One exhaust cylinder corresponds to one camshaft. When there are many cylinders, more cylinders are required, and multiple sets of camshafts and their drive systems are required, which has a huge structure.

It is quite difficult to realize the dynamic adjustment of valve lift and valve opening and closing timing, but the valve lift and opening and closing timing have a great influence on the intake and exhaust efficiency of the engine

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