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Continuous variable valve lift apparatus

A valve lift, variable technology, used in valve devices, engine components, machines/engines, etc., to solve problems such as insufficient valve opening time and volume

Inactive Publication Date: 2009-06-03
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For example, if the valve lift device is designed to respond optimally to low driving speeds, the valve opening time and amount will not be sufficient for high driving conditions

Method used

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  • Continuous variable valve lift apparatus
  • Continuous variable valve lift apparatus
  • Continuous variable valve lift apparatus

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] figure 1 , figure 2 with image 3 They are respectively a front view, a perspective view and a side view of a continuously variable valve lift device according to an exemplary embodiment of the present invention.

[0028] The input cam 100 is configured to impart rotation.

[0029] The lever rotation shaft 210 is connected to the control part 300 .

[0030] The lever 200 is arranged to the lever rotating shaft 210 , and the contact portion 220 is formed on the lever 200 .

[0031] The first link 400 is rotatably connected to the lever rotation shaft 210 .

[0032] The second link 500 is rotatably connected to the first link 400 and contacts the contact portion 220 .

[0033] The output cam 530 is disposed on the second link 500 to open and close the valve 600 .

[0034] The elastic portion 420 is configured to the lever rotation ...

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Abstract

Based on one Embodiment of the invention, a continuous variable valve lift apparatus includes an input cam; a control lever rotating shaft; a control lever with a contact portion, provided on the control lever rotating shaft; a control portion that controls the angle between the control lever and the control lever rotating shaft; a first link rotatably connected to the control lever rotating shaft; a second link rotatably connected to the first link, that contacts the contact portion; an output cam on the second link, to open and close a valve; and an elastic portion provided such that a connecting portion of the first link and the second link contact the input cam.

Description

[0001] Cross-references to related applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2007-0123829 filed with the Korean Intellectual Property Office on November 30, 2007, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to a continuously variable valve lift device. More particularly, the present invention relates to a continuously variable valve lift device capable of adjusting a valve lift amount in response to an engine operating state. Background technique [0004] In a nutshell, a car engine consists of a combustion chamber in which fuel is burned to generate power. The combustion chamber is equipped with intake valves for supplying a fuel-containing gas mixture and exhaust valves for exhausting burned gases. The intake and exhaust valves open and close the combustion chambers through a valve lift device connected to the crankshaft. [0005] A conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/00F01L1/12
CPCF01L13/0021F02D13/0207Y10T74/20207F01L1/18F01L1/255F01L13/00
Inventor 郭永弘辛起旭
Owner HYUNDAI MOTOR CO LTD
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