Continuously-variable rocker type valve mechanism

A valve mechanism and rocker arm type technology, which is applied in the field of continuously variable rocker arm type valve mechanism, can solve the problems that the fuel economy and power performance of the engine cannot reach the best effect, and achieve guaranteed power transmission, simple structure, and stability easy effect

Inactive Publication Date: 2017-05-31
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the fixed valve lift of the traditional valve mechanism results in the engine's fuel economy at low speeds and power performance at high speeds not reaching the best results

Method used

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  • Continuously-variable rocker type valve mechanism
  • Continuously-variable rocker type valve mechanism
  • Continuously-variable rocker type valve mechanism

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0039] Such as figure 1 , Figure 7 , Figure 8 As shown, the present invention provides a continuously variable rocker arm valve mechanism, which includes a rocker arm 110 , the bottom surface of the left end of which is in contact with the valve 120 , and the right end is supported by a hydraulic tappet 130 . When the rocker arm 110 is subjected to a downward force, the bottom surface of the left end can push the valve 120 to open.

[0040] The cam 140 is fixed on the camshaft 150, and the camshaft 150 is supported on the cylinder head. When the camshaft 150 rotates, it can drive the cam 140 to rotate together.

[0041] The rocker arm 110 is provided with a cavity, and the slider assembly 160 is disposed in the cavity. Two arc slide grooves 111 are arranged on the front...

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Abstract

The invention discloses a continuously-variable rocker type valve mechanism. The continuously-variable rocker type valve mechanism comprises a rocker, a cam, a sliding block assembly and a drive mechanism. The bottom side of one end of the rocker is in contact with a valve and capable of pushing the valve, and the bottom side of the other end of the rocker is supported by a hydraulic tappet; the cam is fixed to a cam shaft; the top of the sliding block assembly is in contact with the cam, and the bottom of the sliding block assembly is in contact with the rocker; the drive mechanism is capable of driving the sliding block assembly to move relative to the rocker so as to change the position of the sliding block assembly relative to the rocker and fixing the rocker and the sliding block assembly together; and the sliding block assembly changes relative to the rocker in position, correspondingly the contact position of the cam and the sliding block assembly and the contact position of the sliding block assembly and the rocker are changed, and thus the lift of the valve is changed. The continuously-variable rocker type valve mechanism has the beneficial effects that the power transmission route is short, the system rigidity is high, the movement inertia of all components is small, the vibration and noise are small, and general arrangement design of an engine is facilitated.

Description

technical field [0001] The invention belongs to the technical field of engine intake systems, in particular to a continuously variable rocker arm type valve mechanism. Background technique [0002] The valve displacement curve of the traditional engine valve mechanism is fixed, and the design needs to comprehensively consider the working conditions of the engine at low speed and high speed, and take into account the overall working performance of the engine at low load and high load. Therefore, the fixed valve lift of the traditional valve mechanism has caused the fuel economy of the engine at low speeds and the power performance at high speeds to be less than optimal. [0003] The continuously variable valve mechanism selects reasonable valve lift and valve phase according to different working conditions of the engine, so that the valve lift and phase are always in an ideal state. The continuously variable valve mechanism controls the gas volume entering the cylinder by se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/18F01L13/00F01L1/348
Inventor 屈小贞张恬王冬李永刚
Owner LIAONING UNIVERSITY OF TECHNOLOGY
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