Determining the characteristics for the rational adjusting of an fuel-air mixture composition in a two-stroke engine with internal carburation
| Autor: | Volodymyr Korohodskyi, Georgiy Slyn’ko, Oleh Vasylenko, Andrii Rogovyi, Volodymyr Manoylo, Andrii Polivyanchuk, Vasiliy Migal, Oleksandr Osetrov, Sviatoslav Kryshtopa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
internal carburation
020209 energy fuel-air mixture Nozzle 0211 other engineering and technologies Energy Engineering and Power Technology 02 engineering and technology Industrial and Manufacturing Engineering Automotive engineering law.invention Cylinder (engine) law Management of Technology and Innovation Spark-ignition engine 021105 building & construction lcsh:Technology (General) 0202 electrical engineering electronic engineering information engineering lcsh:Industry Electrical and Electronic Engineering Two-stroke engine operating process Applied Mathematics Mechanical Engineering Fuel injection Computer Science Applications Ignition system Control and Systems Engineering Fuel efficiency Environmental science spark-ignition engine lcsh:T1-995 lcsh:HD2321-4730.9 Combustion chamber |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 2, Iss 5 (104), Pp 39-52 (2020) |
| ISSN: | 1729-4061 1729-3774 |
| Popis: | An operating process for engines with spark ignition and direct fuel injection engines which ensures the formation of a stratified lean fuel-air charge under the modes of partial loads and the power composition of the fuel-air mixture at high loads has been developed. The design of a two-stroke spark-ignition engine was modernized by installing a direct fuel injection system, placing the nozzle in the cylinder wall, and changing the combustion chamber shape. A procedure of adjustment of the composition of the fuel-air mixture in the cylinder of a two-stroke spark-ignition engine has been developed. The procedure features the recording of engine parameters and indicators at a constant cycle fuel feed and intake air adjustment. The proposed procedure makes it possible to more accurately adjust the composition of the fuel-air mixture due to a more accurate dosage of air than the cycle fuel feed. Experimental studies were carried out and adjustment characteristics were constructed in terms of the air-fuel mixture composition in the cylinder of a two-stroke engine with a developed operating process. Load characteristics (at n=3,000rpm) of rational adjustment in terms of economy and maximum power were constructed based on data on the adjustment characteristics for the composition of the fuel-air mixture. It was found that in terms of the load characteristic of rational economy adjustment, the composition of the fuel-air mixture in the engine cylinder (λcyl.ec) varied from 1.31 to 1.94 and the minimum fuel consumption was ge min=259g/(kWh). In terms of the load characteristic of rational power adjustment, the composition of the fuel-air mixture in the engine cylinder (λcyl.pow) varied from 1.31 to 1.7, and the fuel consumption at partial loads was ge=270g/kWh. Characteristics of airflow rate depending on the cycle fuel feed can be used to change the composition of the fuel-air mixture with automatic adjustment of the engine load |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|