Research on High Pressure Oil Pipe Pressure Control

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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Influence of Coolant Pressure Size on Surface Roughness when Stainless Steel Machining

MATEC Web of Conferences ◽

10.1051/matecconf/201929904002 ◽

2019 ◽

Vol 299 ◽

pp. 04002

Author(s):

Robert Cep ◽

Lenka Cepova ◽

Cristina Stefana Borzan ◽

Jiri Kasal ◽

Marek Sadilek ◽

...

Keyword(s):

Surface Roughness ◽

High Pressure ◽

Stainless Steel ◽

Control Valve ◽

Pressure Control ◽

Optical Microscope ◽

Contact Method ◽

External Cooling ◽

Pressure Control Valve ◽

Valve Housing

The paper is focused on the influence of the coolant pressure on the surface roughness of the workpiece when machining stainless steels. The components were machined on a STAR SR-32J dual spindle machining center and an external cooling unit HYTEK CHAV 160/150-AF-F-OL was used for cooling. Two stainless steel components were investigated, namely the gas control valve rod and the high-pressure control valve housing, which require low roughness Ra after machining (less than 0.375 and 0.25 micrometers respectively). The first component was tested at 8 different pressures in the range of 150 bar - 10 bar and the second component at 4 different pressures in the range of 120 bar - 10 bar. The roughness parameters were measured by the contact method using the MITUTOYO Surftest SJ-410 Roughness Tester and the Alicona InfiniteFocus optical microscope. Based on these sample input parameters, it was evaluated howmuch the pressure affects the surface quality or suggested its reduction due to the high cost of operation of the external high-pressure equipment.

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Pressure Control of High Pressure Tubing Based on Fluid Mechanics

IETE Journal of Research ◽

10.1080/03772063.2020.1845247 ◽

2020 ◽

pp. 1-6

Author(s):

Yuhong Tao ◽

Zhixin Wang ◽

Shengang Cai ◽

Zhile Xia

Keyword(s):

High Pressure ◽

Fluid Mechanics ◽

Pressure Control ◽

Pressure Tubing

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High Pressure Control in Synthetic Experimental System of Gas Hydrates Simulation

2009 Second International Conference on Intelligent Computation Technology and Automation ◽

10.1109/icicta.2009.198 ◽

2009 ◽

Author(s):

Fulong Ning ◽

Ling Zhang ◽

Guosheng Jiang ◽

Bing Li ◽

Jian'an Guan

Keyword(s):

High Pressure ◽

Gas Hydrates ◽

Experimental System ◽

Pressure Control

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Study on the Performance of Pressure Release Valve Based on AMESim

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.753-755.2659 ◽

2013 ◽

Vol 753-755 ◽

pp. 2659-2662

Author(s):

Zhi Qing Wu ◽

Hao Hui Shi

Keyword(s):

High Pressure ◽

Control System ◽

Pressure Control ◽

Hydraulic Cylinder ◽

Control Performance ◽

Pressure Relief ◽

Release Process ◽

Release System ◽

Pressure Release ◽

Relief System

The hydraulic cylinder should be safety released in high-pressure situations, the release valve system is presented under such situation in this paper, which can release the high pressure from the hydraulic cylinder, in order to validate its feasibility, the simulation model of pressure release system is established in AMESim, the pressure release process of which is studied, the results show that the pressure relief system can release the high pressure of hydraulic cylinder smoothly, the pressure release system verifies the pressure control performance of control system, some of the parameters or factors of pressure release system are analyzed.

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