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

Compression ignition engine with spark control and control method of compression ignition engine

A technology of internal combustion engine and spark, which is applied in the field of compression ignition internal combustion engine and its control, and can solve the problems of difficult cold start, difficult mode switching, high HC and CO emissions, etc.

Active Publication Date: 2020-11-27
烟台安信精冲技术有限公司
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to propose a high cycle efficiency and high power internal combustion engine in the full load range of the internal combustion engine, which proposes a new ignition and combustion mode - spark controlled compression ignition mode, the efficiency of which mode is close to that of HCCI Internal combustion engine, but it can solve the problem that the traditional HCCI internal combustion engine cannot operate in the high power range, and / or the mode switching difficulty of the two modes of ignition (SI) and compression ignition (HCCI), and / or the traditional HCCI internal combustion engine's HC and Issues such as high CO emissions and difficulty in cold start enable high-efficiency combustion technology to be commercially applied

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
  • Compression ignition engine with spark control and control method of compression ignition engine
  • Compression ignition engine with spark control and control method of compression ignition engine
  • Compression ignition engine with spark control and control method of compression ignition engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] figure 1 , figure 2 As shown, this embodiment 1 provides a compression ignition internal combustion engine with spark control, which has two physically separated combustion chambers, with an airflow channel 26 between the two combustion chambers, and the mixture in the two combustion chambers The composition and temperature of the internal combustion engine are controlled through their respective intake and exhaust systems and fuel injection strategies; the internal combustion engine has two ignition and combustion modes, and can be switched between the two ignition and combustion modes to form a 5-stroke working cycle and a 4-stroke cycle. Two cycle modes of stroke working cycle,

[0127] The internal combustion engine comprises at least one main cylinder 1, an auxiliary cylinder 2 equal in number to the main cylinder 1, a main piston 3, an auxiliary piston 4, a main connecting rod 5, an auxiliary connecting rod 6, a main combustion chamber 7, an auxiliary combustio...

Embodiment 2

[0178] See image 3 , Embodiment 2 of the present invention is based on Embodiment 1, and the main fuel injector 11 is installed in the main combustion chamber 7 instead of in the main cylinder intake port 24 .

[0179] Embodiment 2 Compared with Embodiment 1, the position of the main fuel injector has changed, and the nozzle hole has changed, but the scheme of the nozzle hole change is written in Embodiment 1.

Embodiment 3

[0181] See figure 1 , Embodiment 3 of the present invention is on the basis of Embodiment 1, and described injection hole 40 is installed with main combustion chamber 7 cylinder head side near intake valve or exhaust valve side, and its multiple injection holes The directions are evenly distributed and point to the space of the main combustion chamber 7;

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 compression ignition engine with spark control. The compression ignition engine comprises two combustion chambers which are physically and relatively separated, an airflow runner (26) is formed between two combustion chambers, components and temperature of mixed gas in the two combustion chambers are controlled by air intake and exhaust systems and oil injection strategiesof the two combustion chambers; one technical scheme comprises phaser which can change a compression ratio epsilon of the internal combustion engine and change the volume percent of two combustion chambers; and the internal combustion engine has two ignition and combustion modes and can be switched between two ignition and combustion modes, thereby forming two circulating modes such as a 5-strokeworking cycle and a 4-stroke working cycle.

Description

technical field [0001] The invention relates to an internal combustion engine technology, in particular to a variable compression ratio ε compression ignition internal combustion engine with spark control and a control method thereof. Background technique [0002] After the development of carburetor, intake pipe gasoline injection, in-cylinder direct injection and stratified lean gas combustion technology, the thermal efficiency of spark ignition gasoline engine is still lower than that of diesel engine. The low thermal efficiency of the ignition gasoline engine is mainly due to its combustion method. In terms of combustion mechanism, the traditional gasoline engine is a homogeneous mixture spark ignition. In order to ignite the mixture and spread the flame, the air-fuel ratio of the mixture must be controlled within a certain range. The gas mixture suddenly ignites on a large scale, resulting in knocking, and the compression ratio ε of the gasoline engine is limited. Both...

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): F02B11/00F02B5/00F02B5/02F02B23/10F02B75/18F02B75/02F02F1/18F02F1/24F02M61/14F02P5/15F02D41/00F02D37/02F02D15/00F02D15/04F02B61/06
CPCF02B11/00F02B5/00F02B5/02F02B23/10F02B75/18F02B75/02F02F1/18F02F1/24F02F1/242F02M61/145F02M61/14F02P5/1512F02D41/0052F02D41/006F02D41/0065F02D37/02F02D15/00F02D15/04F02B61/06F02B2023/085F02B2075/028F02B2075/027Y02T10/12
Inventor 沈大兹刘琦关尽欢
Owner 烟台安信精冲技术有限公司