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

Cylinder deactivation engine

An engine and cylinder technology, applied in the direction of engine components, engine control, combustion engine, etc., can solve the problems of valve lift not being obtained, engine weight and manufacturing cost increase

Active Publication Date: 2016-12-07
HYUNDAI MOTOR CO LTD
View PDF15 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the cylinder deactivation engine implemented by the existing cylinder deactivation device, the valves of the non-deactivated cylinders are operated as normal lifts, and thus it is not possible to obtain an appropriate valve lift according to the speed of the engine.
Further, when the configuration for changing the valve lift of the non-deactivated cylinder is complicated, the weight and manufacturing cost of the engine may excessively increase

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
  • Cylinder deactivation engine
  • Cylinder deactivation engine
  • Cylinder deactivation engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only those exemplary embodiments but also various alternatives, modifications, equivalents and other implementations, which may be included within the spirit and scope of the invention as defined by the appended claims. Program.

[0031] figure 1 is a plan view of the variable valve lift device 100 according to the exemplary embodiment of the present invention. Such as figure 1 As shown, the variable valve lift device according to the exemplary embodiment of the present invention includes an outer body 110 , an inner body 120 , a roller 130 , a conn...

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 cylinder deactivation engine may include: one or more deactivation cylinders to be selectively deactivated; one or more non-deactivation cylinders not to be deactivated; cylinder deactivation apparatuses operably connected to the deactivation cylinders and operated by hydraulic pressure to selectively implement a zero lift of a valve or valves of the deactivation cylinders; one or more variable valve lift apparatuses operably connected to the non-deactivation cylinders and operated by the hydraulic pressure to selectively change a lift of a valve of the non-deactivation cylinders; a hydraulic pump that generates the hydraulic pressure for operating the variable valve lift apparatuses and the cylinder deactivation apparatuses; and one or more oil control valves that control the hydraulic pressure from the oil pump so that the hydraulic pressure is selectively supplied to the variable valve lift apparatuses and the cylinder deactivation apparatuses.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2014-0175830 filed on December 9, 2014, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a cylinder deactivated engine. More specifically, the present invention relates to a cylinder deactivated engine capable of varying the valve lift of cylinders that are not deactivated. Background technique [0004] In general, an internal combustion engine is a device that operates a combustion chamber using energy from heat generated by combusting a gas mixture within the combustion chamber. Multi-cylinder engines with multiple cylinders are often used for increased power and reduced noise and vibration. [0005] Recently, due to an increase in energy costs, a cylinder deactivation device of an engine has been developed, which improves fuel efficiency by deactivating...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F02D17/02F01L13/00F01L9/02F01L9/10F01L9/40
CPCF01L13/0005F01L2013/001F01L1/18F01L13/00F02D13/02F02D17/02Y02T10/12
Inventor 崔命植金远圭郭永弘金宇泰
Owner HYUNDAI MOTOR CO LTD