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

Gasoline engine possessing precombustion chamber

A pre-combustion chamber and gasoline engine technology, applied in the field of gasoline engines, can solve the problems of incombustibility at the ignition limit, high NOx emission, restricted development, etc., and achieve the effects of reducing NOx emissions, widening the air-fuel ratio range, and improving fuel economy.

Inactive Publication Date: 2008-07-09
CHERY AUTOMOBILE CO LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current gasoline engine cannot achieve combustion in a wide range of air-fuel ratio due to the limitation of the ignition limit of the mixed gas.
Stratified combustion is a means to achieve a large air-fuel ratio ignition, but the high combustion temperature generated in this combustion method will lead to high NOx emissions, thus limiting its development

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
  • Gasoline engine possessing precombustion chamber
  • Gasoline engine possessing precombustion chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] As shown in Figure 1, during the working process of the gasoline engine, the nozzle 9 injects fuel at the end of the compression stroke (about half of the upward movement of the piston), and the atomized fuel moves closer to the spark plug 7 under the squeeze of the compressed air flow. Less, so a relatively rich mixture in the pre-chamber is formed, which is easy for the gasoline engine to ignite. There is a large amount of fresh air inside the main combustion chamber 2, and the air-fuel ratio λ > 2. After the gasoline engine is ignited, the flame spreads from the pre-combustion chamber 8 to the main combustion chamber 2, so that the engine can be ignited smoothly under the condition of a lean air-fuel ratio, and the piston is pushed to do work. . At the same time, the fresh air in the main combustion chamber 2 can also reduce the combustion temperature in the cylinder, which can greatly reduce the emission of NOx.

[0010] Simultaneously, this gasoline engine is also...

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 petrol motor with a precombustion chamber. A main combustion chamber (2) with a piston (1) is arranged inside the petrol motor; an admission valve (3) is arranged between the main combustion chamber (2) and an admission passage (4); an exhaust valve (10) is arranged between the main combustion chamber (2) and an exhaust passage (6). The admission passage (4) is provided with a second muzzle (5). A precombustion chamber (8) is arranged beside the main combustion chamber (2). The tops of the precombustion chamber (8) and the main combustion chamber (2) are communicated. A spark plug (7) and a muzzle (9) are arranged inside the precombustion chamber (8). The invention has individual design so that the petrol motor can work under the circumstance of large air fuel ratio while the requirement for the power performance of the engine is met, thus significantly improving the fuel economical efficiency of the engine and reducing the discharge of NOx. Accordingly, the invention is highly practical.

Description

technical field [0001] The invention relates to a gasoline engine with a pre-combustion chamber. Background technique [0002] For modern gasoline engines, reducing fuel consumption is a big problem that needs to be solved urgently at present, and increasing the air-fuel ratio is the most direct way to reduce fuel consumption. However, the current gasoline engine cannot achieve combustion in a wide range of air-fuel ratio due to the limitation of the ignition limit of the mixed gas. Stratified combustion is a means to achieve high air-fuel ratio ignition, but the high combustion temperature generated in this combustion method will lead to high NOx emissions, thus limiting its development. Contents of the invention [0003] Aiming at the above shortcomings of the current gasoline engine, the present invention designs a gasoline engine that can burn in a wide range of air-fuel ratios and reduce the amount of NOx emitted during combustion. [0004] The gasoline engine is pr...

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): F02B19/10
CPCY02T10/125Y02T10/12
Inventor 黄建国
Owner CHERY AUTOMOBILE CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com