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

Premixed compression ignition system for spark ignition internal combustion engine

A technology of spark plugs and internal combustion engines, applied in charging systems, combustion engines, mechanical equipment, etc., can solve problems such as temperature and pressure rise, and achieve the effect of reducing pressure rise rate, effectively controlling combustion rate, and reducing soot and other emissions.

Active Publication Date: 2021-10-15
DALIAN UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention is based on the idea that when a high-energy spark plug ignites diesel oil, or ignites a mixture of diesel oil and other fuels, the temperature and pressure in the cylinder rise, and the pre-mixed gas compresses and ignites in a large range, it provides a spark plug-ignited pre-mixed compression ignition system for an internal combustion engine, which solves the problem of pre-mixed compression ignition Ignition phase control problem of mixed compression ignition for efficient and clean premixed compression ignition of internal combustion engines

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
  • Premixed compression ignition system for spark ignition internal combustion engine
  • Premixed compression ignition system for spark ignition internal combustion engine
  • Premixed compression ignition system for spark ignition internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 The high-energy spark plug 3 and the direct injection fuel injector 4 of the premixed compression ignition system of the spark ignition type internal combustion engine shown are both arranged on the cylinder head 1 . The premixed compression ignition system of the spark ignition type internal combustion engine injects the premixed fuel into the combustion chamber 2 through the single or multiple pulse injections of the direct injection nozzle 4 during the intake stroke or the compression stroke to form a premixed gas; Low effective compression ratio, EGR, intake air cooling, etc. are used to prevent the pre-mixed gas in the cylinder from being compression-ignited; near the compression top dead center, the high-energy spark plug 3 is used to ignite the mixed gas near it, so that the temperature in the cylinder and The pressure rises at the same time, reaching the self-ignition condition of the pre-mixed gas, stimulating the multi-point spontaneous combustion of ...

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 spark plug ignition type internal combustion engine premixed compression ignition system belongs to the technical field of internal combustion engine combustion. The combustion system uses a high-energy spark plug to ignite diesel or a mixture of diesel and other fuels. As premixed fuel, it is injected during the intake stroke or compression stroke to form a premixed gas in the combustion chamber. Adopt an effective compression ratio that does not allow the pre-mixed gas to ignite, so that the pre-mixed gas in the cylinder does not spontaneously ignite; near the top dead center of compression, the high-energy spark plug is ignited to ignite the mixed gas near the spark plug, so that the temperature and pressure in the cylinder rise rapidly High, the rest of the pre-mixed gas in the cylinder reaches the spontaneous combustion condition, and large-scale multi-point spontaneous combustion occurs to realize rapid combustion of the pre-mixed gas; a large expansion ratio is adopted to further improve thermal efficiency.

Description

technical field [0001] The invention relates to a spark plug ignition type internal combustion engine premixed compression ignition system, which belongs to the technical field of internal combustion engine combustion. [0002] technical background [0003] The traditional diesel engine belongs to the diffusion combustion of heterogeneous mixing, and there are two main contradictions of economy and emission, soot emission and NOx emission; while the traditional gasoline engine has low thermal efficiency. For this reason, since the 1980s, in order to improve combustion and reduce emissions, the concept of premixed compression ignition has entered people's field of vision. However, premixed compression firing phase control has not been resolved. Contents of the invention [0004] In order to effectively control the premixed compression ignition phase of the internal combustion engine, the fuel that is easy to compress and ignite can be used to ignite the fuel that is suitabl...

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 Patents(China)
IPC IPC(8): F02B1/10F02M61/14F02D41/40F02D41/30F02D41/00F02D15/00
CPCF02B1/10F02D15/00F02D41/0047F02D41/3094F02D41/401F02D41/402F02D2700/03F02M61/14F02M61/145
Inventor 隆武强礼博田华崔靖晨陈雷曹建林肖鸽王洋
Owner DALIAN UNIV OF TECH
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