Variable camshaft and engine adopting camshaft

A camshaft and engine technology, applied to engine components, machines/engines, mechanical equipment, etc., can solve problems such as inconvenient control and complex structure, and achieve the effects of good coordination, improved reliability, and simple structure

Active Publication Date: 2018-12-07
CHERY AUTOMOBILE CO LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Now there are many variable valve lift technologies, but the common disadvantages are complex structure and inconvenient control

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
  • Variable camshaft and engine adopting camshaft
  • Variable camshaft and engine adopting camshaft
  • Variable camshaft and engine adopting camshaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment proposes a variable camshaft with simple structure and easy processing and an engine using the camshaft. The engine can use the camshaft to adjust the valve lift, so as to achieve the purpose of improving fuel economy and power.

[0024] Such as figure 1 , 2 As shown, the variable camshaft of this embodiment is composed of the hollow shaft 1 on both sides and the main shaft 2 in the middle, the two sides of the main shaft 2 extend into the hollow shaft 1 on the corresponding side, and 1 is movably connected by spline fit, wherein the shaft body of the main shaft 2 is provided with an external spline 3, and the inner wall of the hollow shaft 1 is provided with an internal spline; the middle part of the shaft body of the main shaft 2 is provided with two corresponding The cam 4 of the stroke curve; the main shaft 2 and the hollow shaft 1 on the left are provided with a self-locking mechanism that cooperates with each other so that the position of the main...

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

The purpose of the invention is to provide a variable camshaft with simple structure and easiness in processing and an engine adopting the camshaft. The engine can utilize the camshaft to adjust valvelift, thereby achieving the purpose of improving the fuel economy and power performance. The variable camshaft is composed of hollow shafts on the two sides and a main shaft in the middle part, wherein the two sides of the main shaft extend into the hollow shafts on the corresponding sides, and are movably connected with the hollow shafts on the corresponding sides by spline fit; at least two cams corresponding to different lift curves are arranged on the shaft body of the main shaft; the main shaft and at least one hollow shaft on one side are provided with self-locking mechanisms which arematched with each other so as to fix the main shaft to a preset position; and a blanking cap is arranged at one end, far away from the main shaft, of each hollow shaft, and an oil pore passage used for being connected with a hydraulic oil pipe is formed in the blanking cap. The variable camshaft has the advantages of simple structure, convenience in control and high reliability, can ensure the good matching of different cams and a tappet, and is very suitable for adjustment of the valve lift of the engine.

Description

technical field [0001] The invention relates to the technical field of automobile engines, in particular to a camshaft and an engine. Background technique [0002] In 2012, the State Council had issued the "Notice of the State Council on Printing and Distributing the Development Plan for the Energy-Saving and New Energy Automobile Industry (2012-2020)", which clearly stated that by 2015, the average fuel consumption of passenger cars produced in that year The fuel consumption of energy-saving passenger cars has dropped to below 5.9 liters / 100 kilometers. By 2020, the average fuel consumption of passenger cars produced in that year will drop to 5.0 liters / 100 kilometers, and the fuel consumption of energy-saving passenger cars will drop to less than 4.5 liters / 100 kilometers. Under such an urgent regulatory environment, valve control technology, one of the important means to reduce fuel consumption, has received more and more attention from technicians. [0003] Both variab...

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): F01L1/047F01L13/00
CPCF01L1/047F01L13/0036F01L2001/0473F01L2001/0475F01L2013/0052
Inventor 邢宏祥代云峰林新峰金忠恩
Owner CHERY AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap