Internal combustion engine hydraulic valve lift adjustment buffer device

An internal combustion engine and valve lift technology, which is applied to engine components, machines/engines, valve devices, etc., can solve problems such as bulky volume and complex structure of variable valve lift mechanisms, and achieve the effect of reducing impact

Active Publication Date: 2019-07-09
上海高斯通船舶配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to overcome the problems of the existing variable valve lift mechanism, such as complex structure and bulky structure, and provide a valve adjustment buffer device with simple structure and reliable valve lift adjustment

Method used

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  • Internal combustion engine hydraulic valve lift adjustment buffer device
  • Internal combustion engine hydraulic valve lift adjustment buffer device
  • Internal combustion engine hydraulic valve lift adjustment buffer device

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the drawings and the following embodiments. It should be understood that the drawings and the following embodiments are only used to illustrate the present invention rather than limit the present invention.

[0025] see figure 1 and figure 2 , The present invention relates to a valve lift adjustment buffer device for a four-stroke internal combustion engine, which may include a cam 1, a roller 2, a roller pin 3, a roller seat 4, a lower tappet 6, a lower tappet spring 7, and a lower tappet guide sleeve 8 , Mechanical (hydraulic) tappet length adjustment unit 9, 9', gapless valve buffer unit 10, upper tappet 11, upper tappet guide sleeve 12, rocker arm seat 13, rocker shaft 14, rocker arm 15, can Adjusting head screw 16, valve Huff lock clip 17, valve spring upper seat 18, valve spring 19, valve spring lower seat 20, valve guide sleeve 21, valve 22, valve seat 23, cylinder head 24 and diesel engi...

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PUM

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Abstract

The invention relates to a hydraulic type valve lift adjusting and buffering device for an internal combustion engine. The hydraulic type valve lift adjusting and buffering device for the internal combustion engine comprises a cam, a tappet set, a valve set and a rocker arm, wherein the tappet set is connected to the cam and comprises a lower tappet, an upper tappet and a tappet length adjustment unit located between the lower tappet and the upper tappet and used for adjusting the distance between the tappets, and the tappet length adjustment unit comprises a tappet cavity which is formed between the lower tappet and the upper tappet and contains hydraulic oil, a piston which can move leftwards and rightwards to adjust the height of the tappet cavity, and a second servo driving unit which enables the piston to move leftwards and rightwards; the valve set comprises a valve, a valve spring and a valve spring seat; one end of the rocker arm is connected to the valve set, and the other end of the rocker arm is connected to the tappet set; and the cam rotates to drive the tappets to move up and down, and accordingly the rocker arm is made to rotate to control opening and closing of the valve. According to the device provided by the invention, air input or air output can be changed freely according to actual requirements of combustion emission, and the overall performance of the internal combustion engine can be further improved.

Description

technical field [0001] The present invention relates to internal combustion engine technology, in particular to a four-stroke internal combustion engine valve lift adjustment buffer device, which can change the intake air volume or exhaust volume at will according to the actual needs of combustion and emission, and is applied to internal combustion engine cams driven by transmission chains The valve lift achieves the purpose of energy saving and environmental protection, and further improves the overall performance of the internal combustion engine. Background technique [0002] With the increasing energy shortage and the increasing air pollution, the internal combustion engine manufacturing industry is facing a new round of innovation and change. Efficiency enhancement, energy saving, and environmental protection are the eternal themes of internal combustion engine development. In particular, the innovative technology of the combustion system has been continuously improved ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L13/00F01L1/245F01L1/16
Inventor 何才田
Owner 上海高斯通船舶配件有限公司
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