Structure parameters design and performance test of fuel injection system

2006 ◽  
Vol 19 (03) ◽  
pp. 407 ◽  
Author(s):  
Changshui WU
Keyword(s):  
Performance Test ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Structure Parameters ◽  
And Performance

Combustion Characteristics and Performance Increase of an LPG-SI Engine with Liquid Fuel Injection System

2009 ◽  
Author(s):  
Norifumi Mizushima ◽  
Susumu Sato ◽  
Yasuhiro Ogawa ◽  
Toshiro Yamamoto ◽  
Umerujan Sawut ◽  
...  
Keyword(s):  
Liquid Fuel ◽  
Fuel Injection ◽  
Combustion Characteristics ◽  
Injection System ◽  
Fuel Injection System ◽  
Si Engine ◽  
And Performance

Investigation of Fuel Injection System Cavitation Problems on the MV James R. Barker, MV Mesabi Miner, and MV William J. De Lancey

1985 ◽  
Vol 22 (03) ◽  
pp. 219-237
Author(s):  
Michael G. Parsons ◽  
Richard W. Harkins
Keyword(s):  
Cavitation Erosion ◽  
Fuel Injection ◽  
Injection System ◽  
Fuel Injection System ◽  
Engine Fuel ◽  
Cavitation Damage ◽  
Bulk Carriers ◽  
Performance System ◽  
And Performance ◽  
High Pressure Injection

Cavitation erosion has long been recognized as a potential problem in the components and piping of diesel engine fuel injection systems. Specific cavitation erosion problems have been experienced recently in the fuel injection systems of the Colt-Pielstick PC2 engines of the Great Lakes bulk carriers MV James R. Barker, MV Mesabi Miner, and MV William J. De Lancey. Similar damage has been found in the injection systems of PC2 engines onboard other U.S.-flag vessels. The experience on the subject vessels and the efforts being taken to eliminate or minimize these problems are described. The modeling and methods used in a digital computer simulation of the fuel injection system on these vessels are presented. This simulation is being developed to study the effects of the delivery valve spring characteristics and performance, system pressures, and various system details and potential modifications on the overall performance of the fuel injection system. Special emphasis has been placed upon the factors which can be causing the cavitation damage within the high-pressure injection piping and injector bodies. Example simulation results are presented. The simulation will provide a practical and economical way to evaluate potential modifications.

Effect of End of Injection Angle on Performance and Emission Formation for a Gasoline Engine

2013 ◽  
Vol 300-301 ◽  
pp. 27-31
Author(s):  
Hsu Fang Chang ◽  
Wang Chih Cheng ◽  
Feng Tsai Weng
Keyword(s):  
Gasoline Engine ◽  
Fuel Injection ◽  
Operating Conditions ◽  
Injection System ◽  
Fuel Injection System ◽  
Injection Angle ◽  
Performance And Emission ◽  
Emission Regulation ◽  
And Performance ◽  
Opening And Closing

The method of supplying fuel for an electronic-controlled fuel injection system is calculating the required fuel amounts under various operating conditions of engine and controlling the opening and closing timing of fuel injection. After fuel injection, the effects of condensation and atomization of injected fuel as well as fuel mixing for combustion are strongly dominated by the opening timing and duration of intake valves. This can further affect the emission composition and performance for an engine. As the emission regulation is getting more stringent and the requirement for minimizing specific fuel consumption is becoming more urgent, investigating the effect of closing timing of fuel injection has turned out to be a major issue. Therefore, this paper presents a study about a series of engine tests to investigate the effect of end of injection angle on the performance and emission formation for a gasoline engine. In these tests, the values of end of injection angle are adjusted using a control software for electronic-controlled fuel injection system so that the results can be analyzed under various engine speeds and loads.

Study on Wear-Preventing of Needle Valve in Fuel Injection System Mounted on DME Engine

2011 ◽  
Vol 228-229 ◽  
pp. 1057-1062
Author(s):  
Xin Rong Wen ◽  
Guang De Zhang ◽  
Wei Hua Wang ◽  
Xie Lu ◽  
Sun Jing
Keyword(s):  
Dynamic Stability ◽  
Structural Design ◽  
Fuel Injection ◽  
Dynamic Instability ◽  
Calculation Model ◽  
The Other ◽  
Injection System ◽  
Needle Valve ◽  
Fuel Injection System ◽  
Theoretical Support

The purpose of this paper is to provide theoretical support for the structural design to prevent the wear of needle. The actual wear of the orientation part of the needle in scrapped needles was researched. The presented results showed that the main reason to the wear of the orientation part of needle was the dynamic instability and the abrasives enter into the surface of orientation part which increases the wear, and that the calculation model of dynamic stability was proposed to prevent the wear of needle. This model was a pressure rod, one end of which was fixed, the other was free, and the two ends were pressed on axial force which changes with time. Besides, the classic formula of dynamic stability of pressure rod was changed rationally, so as to correspond with the calculation model. It will play a part in preventing the wear of needle.

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