scholarly journals ANALYSIS OF FUEL QUALITY EFFECT ON THE LIFE TIME FROM HIGH-PRESSURE PUMP OF ENGINE MTU 12 V 4000 M 71

JOURNAL ASRO ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 193
Author(s):  
Sutrisno Sutrisno ◽  
Wawan Kusdiana ◽  
Anton Nugroho ◽  
Abdul Rahman
Keyword(s):  
High Pressure ◽  
Combustion Process ◽  
Life Time ◽  
Poor Quality ◽  
The Other ◽  
Fuel Quality ◽  
High Pressure Pump ◽  
Pressure Pump ◽  
Pump Component

Fuel is one of the important components in the combustion process. A good fuel is a clean fuel where the fuel is colorless, watery, has a high flash point, it can ignite spontaneously at a temperature of 350ºC, and has a specific gravity of about 0.82-0.86. On the other hand, KRI Kelabang-826 is an Indonesian republic warship that functions as a patrol boat. This causes the ship to have a medium duty engine, the MTU 12 V 4000 M 71 engine. This engine itself is a sophisticated engine because it uses common rail technology with a High-Pressure Pump as the supplying pump. This pump is very susceptible to damage, this is proven by not achieving the life time of the High-Pressure Pump which is 7500 Running Hours or once a W5- level maintenance. This is caused by poor quality of fuel, where the fuel used contains water and impurities. Therefore, the preventive ways are needed in order to achieve the life time of this High-Pressure Pump component. Keywords: Fuel Quality, MTU 12 V 4000 M 71, High-Pressure Pump, and Condor Class.

Demonstration of a piston type integrated high pressure pump-energy recovery device for reverse osmosis desalination system

Desalination ◽  
2021 ◽  
Vol 507 ◽  
pp. 115033
Author(s):  
Daiwang Song ◽  
Yin Zhang ◽  
Haitao Wang ◽  
Lidong Jiang ◽  
Chengpeng Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Reverse Osmosis ◽  
Energy Recovery ◽  
Pump Energy ◽  
High Pressure Pump ◽  
Pressure Pump ◽  
Reverse Osmosis Desalination

scholarly journals Study on the sealing defects impact on high pressure pump

2020 ◽  
Vol 997 ◽  
pp. 012005
Author(s):  
D P Bistriceanu ◽  
S G Pal ◽  
F C Ciornei ◽  
C Bujoreanu
Keyword(s):  
High Pressure ◽  
High Pressure Pump ◽  
Pressure Pump

scholarly journals Media Literasi: Upaya Bijak Menyikapi Terpaan Tayangan Televisi

Humaniora ◽  
2013 ◽  
Vol 4 (1) ◽  
pp. 619
Author(s):  
Wira Respati
Keyword(s):  
Media Literacy ◽  
Poor Quality ◽  
Cultural Development ◽  
The Other ◽  
Content Selection ◽  
The Media ◽  
Television Media ◽  
Passive Object ◽  
Business Orientation

The television media have transformed into industry. Tight competition among TV stations demands the media people to provide programs based on the market taste. Therefore, mostly TV stations design and produce their programs based on share and rating numbers, instead of quality. On the other side, TV stations have important roles in constructing social and cultural development. Currently, TV programs are merely produced based on the business orientation so that the quality of the TV programs is often ignored. Audience must be wise and smart to protect themselves from poor-quality TV programs exposure. This can be achieved by improving their Media Literacy. In the end, Audience is no longer treated as passive object, but actively takes control on the content selection. 

Improvement in motor performance during high-pressure pump starting at NDDP, Kalpakkam

2008 ◽  
Vol 3 (1) ◽  
pp. 56
Author(s):  
R. Nagaraj ◽  
V. Murugan ◽  
A.Y. Dangore ◽  
K.L. Thalor ◽  
A.K. Saxena ◽  
...  
Keyword(s):  
High Pressure ◽  
Motor Performance ◽  
High Pressure Pump ◽  
Pressure Pump

Experimental Identification of Failures of High-Pressure Pump Drive

2015 ◽  
Vol 816 ◽  
pp. 421-425
Author(s):  
Robert Grega ◽  
Jaroslav Homišin ◽  
Silvia Medvecká-Beňová ◽  
Jozef Krajňák
Keyword(s):  
High Pressure ◽  
Specific Energy ◽  
Working Life ◽  
High Pressure Pump ◽  
Experimental Identification ◽  
Pressure Pump ◽  
Fundamental Condition ◽  
Real State

In practice, the mobile machines, machinery and their parts are sources of vibrations which could shorten their technical working life. In every machine, a specific energy is converted into vibrations of the machinery or their individual components. The information about machinery is fundamental condition of its future running. The methods of vibration diagnostic could be useful for monitoring of device wear and determining of real state of machines.

scholarly journals Non-Structural Damage Verification of the High Pressure Pump Assembly Ball Valve in the Gasoline Direct Injection Vehicle System

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 857 ◽  
Author(s):  
Liang Lu ◽  
Qilong Xue ◽  
Manyi Zhang ◽  
Liangliang Liu ◽  
Zhongyu Wu
Keyword(s):  
High Pressure ◽  
Structural Damage ◽  
Direct Injection ◽  
Equivalent Stress ◽  
Injection Pressure ◽  
Gasoline Direct Injection ◽  
Relief Valve ◽  
High Pressure Pump ◽  
Pressure Pump ◽  
Valve Ball

The injection pressure of the gasoline direct injection vehicle is currently developing from the low pressure to the high pressure, and the increase of the injection pressure has brought various damage problems to the high pressure pump structure. These problems should be solved urgently. In this paper, the damage problem of the high pressure pump unloading valve ball in a gasoline direct injection vehicle under high pressure conditions is studied. The theoretical calculation of the force of the pressure relief valve is carried out. Firstly, the equivalent friction coefficient is obtained by decoupling analysis of the statically indeterminate model. Based on this, a finite element model is established. The equivalent stress is obtained by numerical simulation. The equivalent stress is compared with the yield strength of the valve ball material to determine that the valve ball damage is a non-static damage. At the same time, the s-N curve of the probability of destruction of one-millionth of the material of the valve ball is given. Then, the fatigue numerical simulation is performed. A safety factor of 3.66 is obtained. In summary, the high pressure relief valve ball in the direct injection high pressure pump should not be a traditional structural damage under high pressure conditions. In the theoretical calculation, the tangential displacement and radial displacement of the ball are all on the micrometer level. It can be presumed that the surface damage of the valve ball is microscopic damage, such as fretting wear.

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