Home Journals Articles Updates About
CN
image
收藏切换
Study on Coupling Relationship Between Dynamic Valve Operating Characteristics and Two-Stroke Braking Performance
收藏切换
PDF
Jingchen Cui1, Lei Wei1, Caihong Hao2, Pengbo Dong1
Transactions of CSICE | 2024, 42(1) : 70 - 77
Less
收藏切换
Transactions of CSICE | 2024, 42(1): 70-77
Study on Coupling Relationship Between Dynamic Valve Operating Characteristics and Two-Stroke Braking Performance
Full
Jingchen Cui1, Lei Wei1, Caihong Hao2, Pengbo Dong1
Affiliations
  • 1.School of Energy and Power Engineering，Dalian University of Technology，Dalian 116024，China
  • 2.Institute of Future Technology，Weichai Power Company Limited，Weifang 261061，China
doi: 10.16236/j.cnki.nrjxb.202401009
Outline
收藏切换

Based on the self-developed variable-mode valve actuation system，a combined simulation of the valve actuation system and the engine used was carried out to study their coupling operation characteristics，which provides a theoretical proof for vehicle application. The results show that there is a strong coupling relationship between the in-cylinder pressure and the valve operation，especially in the exhaust valve operation stage near top dead center(TDC) and below the engine speed of 2300r/min. The higher the engine speed is，the greater the valve dynamic lift loses，and the higher the maximum cylinder pressure is. While their change degree is gradually reduced at engine speed over 2300r/min. Adding a transitional lift on the exhaust brake cam after TDC can eliminate the exhaust valve recoil，and further improve contradiction relationship between the braking power and the maximum in-cylinder pressure. Compared with the ideal four-stroke brake，braking power of the two-stroke brake is obviously increased，and the maximum in-cylinder pressure is obviously reduced. The actual two-stroke braking power is increased by 35.94%，45.61% and 27.54%，and the maximum in-cylinder pressure decreased by 45.42%，27.20% and 7.35% at 1600，1900 and 2400r/min，respectively.

engines  /  two-stroke brake  /  variable-mode valve actuation system  /  combined simulation
Jingchen Cui, Lei Wei, Caihong Hao, Pengbo Dong. Study on Coupling Relationship Between Dynamic Valve Operating Characteristics and Two-Stroke Braking Performance[J]. Transactions of CSICE, 2024 , 42 (1) : 70 -77 . DOI: 10.16236/j.cnki.nrjxb.202401009
Appendix
Less
Year 2024 volume 42 Issue 1
PDF
216
102
Cite this Article
BibTeX
Article Info
doi: 10.16236/j.cnki.nrjxb.202401009
  • Receive Date：2023-05-19
  • Online Date：2025-12-11
Article Data
Affiliations
History
  • Received：2023-05-19
  • Revised：2023-09-13
Funding
Affiliations
    1.School of Energy and Power Engineering，Dalian University of Technology，Dalian 116024，China
    2.Institute of Future Technology，Weichai Power Company Limited，Weifang 261061，China
References
Share
https://castjournals.cast.org.cn/joweb/nrjxb/EN/10.16236/j.cnki.nrjxb.202401009
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House