Flexibly Controlled Injection Rate Shape with Next Generation Common Rail System for Heavy Duty DI Diesel Engines

2000 ◽  
Author(s):  
Susumu Kohketsu ◽  
Keiki Tanabe ◽  
Koji Mori
Keyword(s):  
Diesel Engines ◽  
Injection Rate ◽  
Common Rail ◽  
Next Generation ◽  
Heavy Duty ◽  
Common Rail System ◽  
Rail System

Investigation of diesel oil-LPG content fuel utilisation in heavy duty diesel-engines with common rail system

2021 ◽  
Vol 28 (1) ◽  
pp. 15
Author(s):  
Máté Zöldy ◽  
Antal Lengyel ◽  
Ákos Bereczky ◽  
Károly Krajnik ◽  
András Holló
Keyword(s):  
Diesel Engines ◽  
Diesel Oil ◽  
Common Rail ◽  
Heavy Duty ◽  
Common Rail System ◽  
Rail System ◽  
Heavy Duty Diesel

An on-line measurement method of injection rate of high pressure common rail system

Measurement ◽  
2021 ◽  
Vol 170 ◽  
pp. 108716
Author(s):  
Quan Dong ◽  
Xiyu Yang ◽  
Hao Ni ◽  
Jingdong Song ◽  
Changhao Lu ◽  
...  
Keyword(s):  
High Pressure ◽  
Measurement Method ◽  
Injection Rate ◽  
Common Rail ◽  
Common Rail System ◽  
Rail System ◽  
Line Measurement ◽  
On Line ◽  
High Pressure Common Rail

Technical Concepts on Non-Road Small Direct Injection Diesel Engines with Common Rail System

2012 ◽  
Author(s):  
Tomoya Hasegawa ◽  
Tamotsu Kuno ◽  
Kentaro Kita ◽  
Akihiko Kai ◽  
Yuji Takemura ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Direct Injection ◽  
Common Rail ◽  
Common Rail System ◽  
Rail System

scholarly journals Experimental study on the performance of ultra high pressure common rail system

2021 ◽  
Vol 39 (4) ◽  
pp. 883-890
Author(s):  
Kun Yang ◽  
Lei Zhou ◽  
Gang Wang ◽  
Tao Nie ◽  
Xin Wu
Keyword(s):  
High Pressure ◽  
Fuel Injection ◽  
Injection Rate ◽  
Common Rail ◽  
Common Rail System ◽  
Ultra High Pressure ◽  
Rail System ◽  
Pressure Peak ◽  
Fuel Injection Rate ◽  
High Pressure Common Rail

In order to overcome the difficulties of high pressure source design and parts integration in the injector, realizing the ultra high pressure injection and controllable fuel injection rate, an ultra high pressure common rail system based on domestic basic materials and manufacturing technology level was proposed and designed. The working principle of this system was first introduced; the performance test bench of ultra high pressure common rail system was built. Then, the influence of pressure-amplifier device structure parameters on the pressurization pressure peak was analyzed quantitatively, and on the basis of selecting the most appropriate combination of parameters, the pressure and fuel injection rate control characteristics were conducted. The results show that ultra high pressure common rail system can magnify fuel pressure to ultra high pressure state (more than 200 MPa) and by changing the control signal timing of pressure-amplifier device and injector solenoid valve, the flexible and controllable fuel injection rate can be achieved. Under the condition of the same pressurization ratio, the peak value of pressurization pressure increases gradually, and with the increase of pressurization ratio, the increasing trend of the pressurization pressure peak value is nonlinear. At the same time, under the same condition of spring preload, the greater of the spring stiffness, the higher of the rail base pressure can bear, that means the pressure-amplifier device can achieve pressurization at a higher base pressure. But if the spring stiffness is too large, the solenoid valve of pressure-amplifier device will not be opened due to insufficient electromagnetic force, so the specific selection should be considered in a compromise.

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