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

Diesel engine multi-point distribution type guide bench combustion chamber

A guide table and combustion chamber technology, applied in combustion engines, mechanical equipment, machines/engines, etc., can solve the problem of low utilization of combustion chamber headspace space, and achieve the effect of reducing NOx emissions, improving economy, and improving combustion

Inactive Publication Date: 2015-06-03
DALIAN UNIV OF TECH
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of mixture accumulation at the landing point of the porous spray and the low utilization rate of the headspace space of the combustion chamber

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
  • Diesel engine multi-point distribution type guide bench combustion chamber
  • Diesel engine multi-point distribution type guide bench combustion chamber
  • Diesel engine multi-point distribution type guide bench combustion chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] figure 1 A schematic diagram of the structure of the multi-point distributed guide platform combustion chamber of the diesel engine is shown. In the figure, the porous fuel injector 5 of the combustion chamber of the multi-point distributed guide table of the diesel engine sprays the high-pressure fuel into the combustion chamber 4 composed of the cylinder head 1, the cylinder liner 2 and the piston 3 in the form of multiple oil beams, and the combustion The chamber 4 increases the height H of the head gap and provides a plurality of guide platforms 6 . The mist-like oil jets 7 sprayed from the multi-hole injectors are sprayed onto each guide platform, a part of the oil beams is rebounded for secondary atomization, and a part hits the guide platforms and scattered to the surroundings to achieve better spatial mixing of oil and gas. The guide platform includes a collision surface 8 and a guide surface 9 .

[0032] figure 2 , 3 , 4 show the structural schematic diagr...

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 provides a diesel engine multi-point distribution type guide bench combustion chamber and belongs to the field of engine mixed gas formation and combustion. The top gap height of the combustion chamber is increased, the spraying drop points are provided with guide benches, and the distribution range of the sprayed oil in the combustion chamber is expanded. The atomized oil sprayed by a multi-hole nozzle is injected to the guide tables, some oil beams are rebounded and are atomized secondarily, some oil beams impact the guide benches and spread around, and the better spatial mixing of oil and gas is implemented. By the aid of the combustion chamber, the oil and gas mixing efficiency is improved and spatial region is increased greatly, thin mixed gas is formed in the combustion chamber, the soot and NOx emission are decreased, the diesel engine combustion is improved effectively, and economic efficiency is improved; compared with an original system on the calibrated condition, the combustion chamber has the advantages that the economic efficiency is improved by 3%, the soot emission is decreased by 30%, and the NOx emission is reduced by 8%.

Description

technical field [0001] The invention relates to a diesel engine multi-point distributed guide table combustion chamber, which belongs to the field of engine mixture gas formation and combustion. Background technique [0002] At present, diesel engines have the situation that the injected fuel hits the wall of the combustion chamber pit to varying degrees, especially in large-bore marine engines, the vortex effect in the cylinder is very weak, and after the fuel hits the wall, a thicker and relatively stable mixture will be formed on the wall. Gas layer, this layer of dense mixed gas layer has an important impact on the formation of soot and HC emissions in diesel engines. This phenomenon will become more serious with the increase of diesel fuel injection pressure and the miniaturization of cylinder bore. In addition, the porous spray is unevenly distributed in the circumferential direction, and the spray accumulates or produces an oil film at the point of impact. Insuffici...

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): F02B23/00
CPCY02T10/12
Inventor 隆武强田华田江平何爽杜宝国冯立岩付垚
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