Results 41 to 50 of about 25,491 (311)

Investigation of transition between spark ignition and controlled auto-ignition combustion in a V6 direct-injection engine with cam profile switching

, 2008
Controlled auto-ignition (CAI) combustion, also known as Homogeneous Charge Compression Ignition (HCCI) can be achieved by trapping residuals with early exhaust valve closure in a direct fuel injection in-cylinder four-stroke gasoline engines (through ...
Zhao, H, Kalian, N, Qiao, J
core   +1 more source

Experimental research of mechanical losses in a small four-stroke engine [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2019
Problem. Single-cylinder four-stroke engines are used as a power plant for vehicles participating in international economical competitions Shell «Eco-maratthon».
Abramchuk Fedor, Kuzmenko Anatoly
doaj   +1 more source

Study on the effect of inclination angle on two-phase oscillating flow and heat transfer characteristics of piston cooling galleries

Case Studies in Thermal Engineering, 2022
The uneven temperature distribution of piston is one of the main reasons for piston fatigue failure. Piston cooling gallery is an effective cooling method to achieve an acceptable piston temperature field.
Guangyi Xie, Jilin Lei, Xiwen Deng, Dewen Jia, Wei Deng, Xiangsen Jiang, Jun Wen   +6 more
doaj   +1 more source

Ultrathin Li Metal Anodes: Quantitative Design Principles and Manufacturability Across Liquid and Solid‐State Batteries

Advanced Materials, EarlyView.
Ultrathin lithium metal anodes (≤15 µm) offer a promising route to high‐energy‐density batteries due to their high capacity and low potential. This review presents design principles for ultrathin Li, evaluates fabrication strategies, and discusses challenges in liquid and solid‐state cells.
Cheng Wang, Caoyu Wang, Shuixin Xia, Jodie A. Yuwono, Mingnan Li, Yanqiu Lyu, Ruizhi Zhang, Jun Wang, Jianfeng Mao, Zaiping Guo   +9 more
wiley   +1 more source

Application of exhaust gas fuel reforming in diesel and homogeneous charge compression ignition (HCCI) engines fuelled with biofuels [PDF]

, 2008
This is the post-print version of the final paper published in Energy. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other ...
Yap, D, Megaritis, A
core   +1 more source

Efficient development of HVAC systems for electric commercial vehicles through a Hardware-in-the-Loop approach on the ThermoLab testbed

Automotive and Engine Technology
The shift towards sustainable mobility in the passenger- and transport sectors is driving the development of sustainable propulsion technologies. Alongside the advancement of efficient and sustainable powertrains, research increasingly targets the ...
Luis Vincent Fiore, Christian Beidl, Erik Stenger, Niko Weimer, Nick Kaiser, Thomas Bäuml, Dominik Dvorak, Günter. Hohenberg   +7 more
doaj   +1 more source

Dynamic Deformation Testing and Analysis of Wet Cylinder Liners Using the Eddy Current Method

Energies
Improving the thermal efficiency of internal combustion engines plays a crucial role in reducing fuel consumption and engine emissions. Studies have shown that the friction loss caused by the piston ring–cylinder liner pair accounts for approximately 30 ...
Haining He, Lizhong Shen, Song Zu, Yuchen Xu, Jianping Song, Yuhua Bi   +5 more
doaj   +1 more source

Linker‐Engineered Dimeric Acceptors Afford Efficient Organic Photocatalytic Hydrogen Evolution via Tailored Nanomorphology for Long‐Lived Charge Accumulation

Advanced Materials, EarlyView.
We developed a new series of monomeric (MY) and dimeric acceptors incorporating unfused (DY1) and fused (DY2) linkers, which establish a controlled self‐aggregation trend of MY > DY2 > DY1. The DY2‐based system yields a bulk‐heterojunction nanoparticle morphology that appears to balance phase separation and interfacial accessibility, consistent with ...
Jin‐Woo Lee, Cheng Sun, Yang Song, Guanru Dong, Keren Ai, Stanley Alfred Cazaly, Flurin Eisner, Bumjoon J. Kim, Zeinab Hamid, Iain McCulloch, Yun‐Hi Kim, James R. Durrant   +11 more
wiley   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

Advanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim, Antonio Proctor Martinez, Yaoye Hong, Ziyun Zhang, Kun‐Yu Wang, Shu Yang   +5 more
wiley   +1 more source

Research on the oscillating flow and heat transfer of the cooling gallery inside a multi-material composite piston

Case Studies in Thermal Engineering
The heat transfer ability of cooling gallery inside high-strengthened diesel engine composite piston is highly required. This article established an oscillating heat transfer model for gas-liquid two-phase flow of cooling gallery.
Haixiang Yang, Jilin Lei, Chunming Wang, Fanghao Sun, Xiwen Deng, Jun Wen, Xiangsen Jiang   +6 more
doaj   +1 more source