scholarly journals The Pressure Control of High Pressure Tubing Together with Problems about Carbon Deposit

2021 ◽  
Vol 632 ◽  
pp. 032042
Author(s):  
Hongliang Chen
Keyword(s):  
High Pressure ◽  
Pressure Control ◽  
Carbon Deposit ◽  
Pressure Tubing

Pressure Control of High Pressure Tubing Based on Fluid Mechanics

2020 ◽  
pp. 1-6
Author(s):  
Yuhong Tao ◽  
Zhixin Wang ◽  
Shengang Cai ◽  
Zhile Xia
Keyword(s):  
High Pressure ◽  
Fluid Mechanics ◽  
Pressure Control ◽  
Pressure Tubing

scholarly journals Pressure control strategy for high-pressure tubing

2020 ◽  
Vol 1592 ◽  
pp. 012028
Author(s):  
Guanwei Lin ◽  
Linhan Wang ◽  
Kangrui Chen
Keyword(s):  
High Pressure ◽  
Control Strategy ◽  
Pressure Control ◽  
Pressure Tubing

scholarly journals The Pressure Control of High-Pressure Tubing Based on Difference Equation

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Yang Zhang ◽  
Rongjun Li ◽  
Linhai Zou
Keyword(s):  
High Pressure ◽  
Difference Equation ◽  
Fuel Injection ◽  
Control Method ◽  
Pressure Control ◽  
Needle Valve ◽  
Oil Pump ◽  
Pressure Tubing ◽  
The Difference ◽  
The One

The situation where fuel enters and exits the high-pressure tubing is one of the important factors that affect the working efficiency of the engine. Based on the simplified high-pressure tubing model, this paper studies the control problems of high-pressure tubing injection and fuel supply under certain circumstances. According to the idea of the difference equation, the paper obtains the opening time of the one-way valve when the pressure value of the high-pressure tubing is kept constant or rises to a specific value by enumerating the opening time of the one-way valve. By establishing the physical model of the high-pressure tubing and the fuel injection nozzle, and then using the enumeration method, the angular velocity of the high-pressure oil pump cam when the pressure of the high-pressure fuel pipe is kept constant can be obtained. Under the more complicated injector model, the control method of the injector is solved by the double enumeration method. The results show that the above model can quickly calculate the optimal working time of the high-pressure fuel pump and needle valve when the accuracy meets the requirements.

scholarly journals Pressure Control of High-Pressure Oil Pipe

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Wenrui Qu ◽  
Lei Liu ◽  
Qun Zhao
Keyword(s):  
Differential Equation ◽  
High Pressure ◽  
Optimization Model ◽  
Mass Conservation ◽  
Pressure Control ◽  
Stability Control ◽  
Fuel Oil ◽  
Precise Control ◽  
Pressure Tubing ◽  
Pressure Stability

In this paper, to realize the pressure stability control of high-pressure oil pipe, the dynamic differential equation of fuel oil inlet and outlet is established based on the theory of mass conservation. According to the change of the pressure in the high-pressure tubing, an optimization model is established to achieve precise control of the working time of each part of the high-pressure oil pipe.

scholarly journals Pressure Control of High Pressure Tubing

OALib ◽  
2020 ◽  
Vol 07 (05) ◽  
pp. 1-8
Author(s):  
Shilin Hu ◽  
Yu Quan
Keyword(s):  
High Pressure ◽  
Pressure Control ◽  
Pressure Tubing

Fully predictive Common Rail fuel injection apparatus model and its application to global system dynamics analyses

2016 ◽  
Vol 18 (3) ◽  
pp. 273-290 ◽  
Author(s):  
Alessandro Ferrari ◽  
Pietro Pizzo
Keyword(s):  
High Pressure ◽  
Control System ◽  
Fuel Injection ◽  
Time History ◽  
Pressure Control ◽  
Rail Pressure ◽  
High Pressure Pump ◽  
Pressure Time ◽  
Pressure Control System ◽  
Injection Apparatus

A fully predictive model of a Common Rail fuel injection apparatus, which includes a detailed simulation of rail, pump, piping system, injectors and rail pressure control system, is presented and discussed. The high-pressure pump and injector sub-models have been validated separately and then coupled to the rail and pressure control system sub-models. The complete predictive model has been validated and applied to investigate the effects of the dynamics of each component of the injection apparatus on the rail pressure time history. Variable timing of the high-pressure pump delivery phases has also been considered, and the influence of this parameter on the injection performance has been analysed for both single- and multiple-injection events. Furthermore, the injection system dynamics during the transients between steady-state working conditions has been investigated in order to highlight the role played by the dynamic response of the pressure control system on the rail pressure time history.

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