Unlock instant, AI-driven research and patent intelligence for your innovation.

Continuous variable valve lift apparatus for engine of vehicle

An engine and variable technology, applied in valve drives, engine components, combustion engines, etc., to solve the problems of inability to meet output requirements, large valve lift, inability to meet idle speed stability and torque requirements, etc.

Inactive Publication Date: 2009-06-17
HYUNDAI MOTOR CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] [0006] More specifically, when an ordinary engine is tuned for high speed, the lift amount of the valve is set larger, so that the engine has excellent performance at high speed, but at low speed, there are problems that cannot satisfy idle stability and Torque Requirement Questions
[0008] [0007] On the contrary, when an ordinary engine is tuned for low speed, the engine has excellent performance at low speed, but there is a problem of not being able to meet output requirements at high speed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous variable valve lift apparatus for engine of vehicle
  • Continuous variable valve lift apparatus for engine of vehicle
  • Continuous variable valve lift apparatus for engine of vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] [0024] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described hereinafter. While the invention has been described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention shall cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other implementations as may be included within the spirit and scope as defined in the appended claims. Way.

[0026] 【0025】 figure 1 is a side view of a variable lift device according to an exemplary embodiment of the present invention, figure 2 yes figure 1 the main view of the , and image 3 yes figure 1 rear view.

[0027] [0026] According to an exemplary embodiment of the present invention, the variable lift device may be applied to an engine having...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A variable valve lifting device of a vehicle motor comprises a camshaft with cam; an oscillating arm supported by a supporting part at one side and used for operating the valve at another side; an input arm comprising a roller pressure adding part extending along one direction and a rotation arm extending along another direction; a first roller set on the connection part of the rotation arm and the roller pressure adding part and contacting the cam; a second roller set on the oscillating arm and contacting with the roller contact surface; a variable connection piece capable of connecting the lower end side of an output arm projecting towards the lower side of the rotation arm in aid of an articulated axle and moving the articulated axle along a guide slot formed in a guiding piece; and a variable rotation axle for operating the variable connection piece.

Description

[0001] Cross-References to Related Applications [0002] [0001] This application claims priority from Korean Patent Application No. 10-2007-0131588 filed on December 14, 2007, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] [0002] The present invention relates to a variable valve lift device for a vehicle engine, in particular to a variable valve lift device for a vehicle engine capable of continuously changing the valve lift height. Background technique [0004] [0003] In general, an engine is formed with a combustion chamber in which fuel is burned to enable a vehicle to generate power. Adjacent to the combustion chamber is a valve train including intake / exhaust valves capable of controlling intake and exhaust. The valve train opens and closes the combustion chamber via the crankshaft. [0005] [0004] Generally speaking, in such a valve train, a cam having a regular shape lifts the valve up to a preset lift am...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F01L13/00F01L1/04
CPCF01L1/053F01L1/18F01L1/267F01L13/0015F01L2305/00Y02T10/12
Inventor 郭永弘权奇荣孔镇国张庆俊
Owner HYUNDAI MOTOR CO LTD