Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Valve actuating mechanism for engine and cam of valve actuating mechanism

A valve train, engine technology, applied in engine components, machines/engines, mechanical equipment, etc., can solve the problems of cumbersome control, many parts, and single functions, and achieve simple swing arm components, few parts, and simple structure. Effect

Inactive Publication Date: 2017-02-08
GREAT WALL MOTOR CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The valve mechanism of the engine is used to drive the opening and closing of the valve. In order to improve the overall performance of the engine and meet the increasingly stringent emission fuel consumption regulations, it has become a trend to use a variable valve mechanism for the valve mechanism. The variable valve mechanism can be divided into camless Shaft-based variable valve mechanism and camshaft-based variable valve mechanism, but in the related art, the camshaft-based variable valve mechanism has complex structure and single function, such as variable valve lift or variable duration, and many parts , the control is cumbersome

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
  • Valve actuating mechanism for engine and cam of valve actuating mechanism
  • Valve actuating mechanism for engine and cam of valve actuating mechanism
  • Valve actuating mechanism for engine and cam of valve actuating mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0053] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0054] The body group of the engine is the bracket of the engine, and it is the base body for the assembly of the crank connecting rod mechanism, the gas distribution mechanism and various systems. In this field, generally, the body group is mainly composed of cylinder block, cylinder head, cylinder head gasket and oil pan, etc., the oil pan is generally set at the bottom of the cylinder block, and the cylinder head is set at the top of the cylinder block. A head gasket is provided between the top surface of the cylinder block and the bottom surface of the cylinder head to seal the gap therebetween.

[0055] The cylinder head forms a combustion chamber together with the top of the pisto...

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 invention discloses a valve actuating mechanism for an engine and a cam of the valve actuating mechanism. The valve actuating mechanism for the engine comprises a valve mechanism, a swing arm assembly, a first roller, a second roller, a first cam shaft, a second cam shaft and a phase adjusting mechanism. A first cam profile comprises a first profile first section, a first profile second section, a first profile third section, a first profile fourth section, a first profile fifth section, a first profile sixth section and a first profile seventh section which are connected end to end, and a second cam profile comprise a second profile first section, a second profile second section, a second profile third section, a second profile fourth section, a second profile fifth section, a second profile sixth section and a second profile seventh section which are connected end to end. When the first roller abuts against the first profile first section, the first profile second section, the first profile third section, the first profile fourth section, the first profile fifth section, the first profile sixth section and the first profile seventh section respectively and the second roller correspondingly abuts against the second profile first section, the second profile second section, the second profile third section, the second profile fourth section, the second profile fifth section, the second profile sixth section and the second profile seventh section respectively, a valve is sequentially in a first closed state, a primary open stage, a primary closed stage, a secondary open stage, a secondary closed stage, a second closed state and a third closed state. The phase adjusting mechanism is used for adjusting the opposite phases of the first cam shaft and the second cam shaft. According to the valve actuating mechanism for the engine in the embodiment, secondary valve open can be achieved, and the open persistent period is adjustable.

Description

technical field [0001] The invention relates to the field of automobile construction, in particular to a gas distribution mechanism for an engine and a cam thereof. Background technique [0002] The valve mechanism of the engine is used to drive the opening and closing of the valve. In order to improve the overall performance of the engine and meet the increasingly stringent emission fuel consumption regulations, it has become a trend to use a variable valve mechanism for the valve mechanism. The variable valve mechanism can be divided into camless Shaft-based variable valve mechanism and camshaft-based variable valve mechanism, but in the related art, the camshaft-based variable valve mechanism has complex structure and single function, such as variable valve lift or variable duration, and many parts , the control is cumbersome. Contents of the invention [0003] In view of this, the present invention aims to provide a gas distribution mechanism for an engine, which has ...

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): F01L1/04F01L1/08F01L1/06F01L1/344
Inventor 程超罗伟张鹏李剑
Owner GREAT WALL MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com