Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine
Pre-chamber jet ignition is a promising way to improve fuel consumption of gasoline engine. A small volume passive pre-chamber was tested at a 1.5L turbocharged GDI engine. Combustion and emission characteristics of passive pre-chamber at low-speed WOT and part load were studied. Besides, the combus...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2021-12-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/16878140211067148 |
| _version_ | 1818362673661739008 |
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| author | Wei Duan Zhaoming Huang Hong Chen Ping Tang Li Wang Weiguo Chen |
| author_facet | Wei Duan Zhaoming Huang Hong Chen Ping Tang Li Wang Weiguo Chen |
| author_sort | Wei Duan |
| collection | DOAJ |
| description | Pre-chamber jet ignition is a promising way to improve fuel consumption of gasoline engine. A small volume passive pre-chamber was tested at a 1.5L turbocharged GDI engine. Combustion and emission characteristics of passive pre-chamber at low-speed WOT and part load were studied. Besides, the combustion stability of the passive pre-chamber at idle operation has also been studied. The results show that at 1500 r/min WOT, compared with the traditional spark ignition, the combustion phase of pre-chamber is advanced by 7.1°CA, the effective fuel consumption is reduced by 24 g/kW h, and the maximum pressure rise rate is increased by 0.09 MPa/°CA. The knock tendency can be relieved by pre-chamber ignition. At part load of 2000 r/min, pre-chamber ignition can enhance the combustion process and improve the combustion stability. The fuel consumption of pre-chamber ignition increases slightly at low load, but decreases significantly at high load. Compared with the traditional spark ignition, the NO x emissions of pre-chamber increase significantly, with a maximum increase of about 15%; the HC emissions decrease, and the highest decrease is about 36%. But there is no significant difference in CO emissions between pre-chamber ignition and spark plug ignition. The intake valve opening timing has a significant influence on the pre-chamber combustion stability at idle operation. With the delay of the pre-chamber intake valve opening timing, the CoV is reduced and can be kept within the CoV limit. |
| first_indexed | 2024-12-13T21:36:19Z |
| format | Article |
| id | doaj.art-56069bd7440d4609800b339609469212 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-13T21:36:19Z |
| publishDate | 2021-12-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-56069bd7440d4609800b3396094692122022-12-21T23:30:40ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402021-12-011310.1177/16878140211067148Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engineWei Duan0Zhaoming Huang1Hong Chen2Ping Tang3Li Wang4Weiguo Chen5School of Mechanical and Automotive Engineering, Anhui Water Conservancy Technical College, Hefei, ChinaSchool of Mechanical Engineering, Wanjiang University of Technology, Maanshan, ChinaSchool of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, ChinaSchool of Mechanical and Automotive Engineering, Anhui Water Conservancy Technical College, Hefei, ChinaSchool of Mechanical and Automotive Engineering, Xuancheng Vocational and Technical College, Xuancheng, ChinaEngine Engineering Research Institute, Chery Automobile Co., Ltd., Wuhu, ChinaPre-chamber jet ignition is a promising way to improve fuel consumption of gasoline engine. A small volume passive pre-chamber was tested at a 1.5L turbocharged GDI engine. Combustion and emission characteristics of passive pre-chamber at low-speed WOT and part load were studied. Besides, the combustion stability of the passive pre-chamber at idle operation has also been studied. The results show that at 1500 r/min WOT, compared with the traditional spark ignition, the combustion phase of pre-chamber is advanced by 7.1°CA, the effective fuel consumption is reduced by 24 g/kW h, and the maximum pressure rise rate is increased by 0.09 MPa/°CA. The knock tendency can be relieved by pre-chamber ignition. At part load of 2000 r/min, pre-chamber ignition can enhance the combustion process and improve the combustion stability. The fuel consumption of pre-chamber ignition increases slightly at low load, but decreases significantly at high load. Compared with the traditional spark ignition, the NO x emissions of pre-chamber increase significantly, with a maximum increase of about 15%; the HC emissions decrease, and the highest decrease is about 36%. But there is no significant difference in CO emissions between pre-chamber ignition and spark plug ignition. The intake valve opening timing has a significant influence on the pre-chamber combustion stability at idle operation. With the delay of the pre-chamber intake valve opening timing, the CoV is reduced and can be kept within the CoV limit.https://doi.org/10.1177/16878140211067148 |
| spellingShingle | Wei Duan Zhaoming Huang Hong Chen Ping Tang Li Wang Weiguo Chen Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine Advances in Mechanical Engineering |
| title | Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine |
| title_full | Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine |
| title_fullStr | Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine |
| title_full_unstemmed | Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine |
| title_short | Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine |
| title_sort | effects of passive pre chamber jet ignition on combustion and emission at gasoline engine |
| url | https://doi.org/10.1177/16878140211067148 |
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