Floating ball valve with improved valve seat

The actual service life of electrohydraulic injectors of automotive diesel engines with a high-pressure battery system of the Common Rail type in operation is significantly lower than the claimed one, and its restoration by repair is relevant from a technical and economic point of view. One of the most wearable elements of electrohydraulic injectors is the contact surface of the ball valve seat. (Research purpose) The research purpose is in developing an improved technology for repairing electro-hydraulic injectors of automotive diesel engines with a vibration-rivet of the contact surface of the ball valve seat. (Materials and methods) The article presents the carried out theoretical substantiation of the process of vibration riveting of the ball valve seat of electrohydraulic injectors and its laboratory and bench studies using serial stands for testing electrohydraulic injectors, checking their elements and restoring the seat geometry by lapping, an electronic digital microscope. (Results and discussion) Authors confirmed the working hypothesis about the possibility of forming the ring contact surface of the ball valve of electrohydraulic injectors reinforced with a vibration riveting by creating certain hydraulic and electrical modes of its operation during the required time. For the model 0445110376 electrohydraulic injectors of the Cummins ISF 2.8 diesel engine, the total area of the hardened surface of the regular ring shape was 0.07 square millimeters, and the depth was about 0.003 millimeters with a process time of 45 minutes. The parameters of the experimental electrohydraulic injectors met the requirements of the test plan, and they are currently successfully undergoing operational tests. (Conclusions) The use of a valve seat vibration rivet will increase the life of repaired injectors at a low cost for its implementation.

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Ball-valve seat with high sealing performance

Sealing Technology ◽

10.1016/s1350-4789(19)30240-5 ◽

2019 ◽

Vol 2019 (7) ◽

pp. 10

Keyword(s):

Ball Valve ◽

Valve Seat ◽

Sealing Performance

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Remanufacturing of High Temperature Ball Valve by Surface Engineering Technology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.97-101.1381 ◽

2010 ◽

Vol 97-101 ◽

pp. 1381-1384

Author(s):

X.L. Huang ◽

Lin Liu ◽

Bo Qin Gu ◽

Chun Lei Shao ◽

Jian Feng Zhou

Keyword(s):

High Temperature ◽

Surface Engineering ◽

Ball Valve ◽

Valve Seat ◽

Coating Materials ◽

Fem Method ◽

Brush Plating ◽

Sprayed Coating ◽

Plasma Sprayed ◽

Valve Ball

Four kinds of coating materials and two kinds of brush plating materials were screened and sprayed on the surface of valve ball by plasma spraying technology and brush plated on the surface of valve seat by electrical brush technology, respectively. The wear resistance of the sealing pairs and the properties of the plasma sprayed coatings were tested. The results indicate that the sealing pair composed of the valve ball with the plasma sprayed coating of Al2O3-TiO2 and the valve seat with the brush plating layer of nickel tungsten has best combination property. The gap of the sealing pair at room temperature and the leakage rate at elevated temperature of the high temperature ball valve were obtained by FEM method and analysis method, respectively. Therefore, the open and close torque of the high temperature ball valve was determined. According to the results of the research, the failed ball valve was remanufactured, and the performance inspection was also conducted. The remanufactured ball valve has much longer service life than the original one and its sealing behavior was also improved significantly.

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Ball valve seat with triple seal

Sealing Technology ◽

10.1016/s1350-4789(18)30326-x ◽

2018 ◽

Vol 2018 (8) ◽

pp. 10

Keyword(s):

Ball Valve ◽

Valve Seat

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A Free - Floating Ball Valve Thrombus in the Left Atrium: Diagnosed Clinically and by Trans Thoracic Two - Dimensional Echocardiography.

IOSR Journal of Dental and Medical Sciences ◽

10.9790/0853-0837075 ◽

2013 ◽

Vol 8 (3) ◽

pp. 70-75

Author(s):

Rajendra Kumar ◽

Keyword(s):

Left Atrium ◽

Ball Valve ◽

Two Dimensional ◽

Floating Ball ◽

Dimensional Echocardiography ◽

Two Dimensional Echocardiography

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Ball Valve Seat Design Method Based on Finite Element Analysis and Calculation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.551.331 ◽

2014 ◽

Vol 551 ◽

pp. 331-336

Author(s):

Yan Peng ◽

Liang Yu Zong ◽

Liu Feng Hao ◽

Qi Yang Li

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Design Method ◽

Ball Valve ◽

Valve Seat ◽

3D Design ◽

Element Analysis ◽

Surface Design ◽

3D Cad ◽

Sealing Pressure

The face of the valve seat sealing surface design, the finite element analysis and calculation of ball valve seat sealing surface and angle of the design method is studied. Through 3D CAD technology for ball valve design, guide 3D design model to finite element analysis software to calculate ,reveal the sealing load distribution of pressure in the valve seat sealing surface, sealing pressure values are obtained, through the valve seat sealing surface design Angle analysis, to obtain the optimal value of sealing surface angle.

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Enhancement of Continuous-Feed Low-Cost Solar Distiller: Effects of Various Fin Designs

Energies ◽

10.3390/en14164844 ◽

2021 ◽

Vol 14 (16) ◽

pp. 4844

Author(s):

Mirmanto ◽

I Made Adi Sayoga ◽

Agung Tri Wijayanta ◽

Agus Pulung Sasmito ◽

Muhammad Aziz

Keyword(s):

Low Cost ◽

Ball Valve ◽

Water Yield ◽

Small Scale ◽

Water Production ◽

Tropical Regions ◽

Solar Absorbers ◽

Solar Desalination ◽

Continuous Feed ◽

Floating Ball

This study aimed to enhance distilled water production by employing conventional single-slope solar distillers with continuous seawater input. Three solar absorbers—i.e., a flat absorber, an absorber with 10 fins, and an absorber with 15 fins—were designed and examinedexperimentally. The seawater entered the distillers continuously due to gravity. Moreover, the seawater level inside the distillers was kept constant by using a floating ball valve. The overall size of each distiller was fixed at 1136 mm × 936 mm × 574 mm. The performance of the distillers was analyzed and discussed. The average yields of the flat absorber, the absorber with 10 fins, and the absorber with 15 fins were 1.185 L/d, 1.264 L/d, and 1.404 L/d, respectively. The results of the absorber with 15 fins were about 18.5% higher than those of the flat absorber. The experimental results were compared with the established correlations. This new design with increased water yield provides an effective approach for harvesting sunlight in remote tropical regions for small-scale solar desalination.

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Design of Cantilever Semi-Ball Valve Seat Assembly Machine

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.467-469.1731 ◽

2011 ◽

Vol 467-469 ◽

pp. 1731-1735

Author(s):

Tie Cheng Li

Keyword(s):

Production Efficiency ◽

Ball Valve ◽

Valve Seat ◽

Assembly Technology

Basing on the analyzing assembly technology of the double eccentric semi-ball valvular, the boom-type assembly machine is designed to assemble half spherical valvular. The assembly machine can provide larger transmit torque at the ending tighten step, though the changing of two speeds and releasing the energy of flywheel. Semi-ball valve seat assembly machine will greatly increase the manufacture of semi-valve level and the production efficiency. And it has a good application value.

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