Numerical and Experimental Investigation of Airflow through Check Valve of Vacuum Pump for Automotive Application

2011 ◽  
Author(s):  
H Pandarinath ◽  
J Sureshkumar ◽  
Ramalingam Sivanantham ◽  
S Prabhakar ◽  
S R Nagendiran
Keyword(s):  
Experimental Investigation ◽  
Check Valve ◽  
Vacuum Pump ◽  
Automotive Application

scholarly journals Experimental investigation of the check valve behaviour when the flow is reversing

2017 ◽  
Vol 143 ◽  
pp. 02036 ◽  
Author(s):  
D. Himr ◽  
V. Habán ◽  
M. Hudec ◽  
V. Pavlík
Keyword(s):  
Experimental Investigation ◽  
Check Valve

Experimental investigation of hemp fiber hybrid composite material for automotive application

2020 ◽  
Author(s):  
N. Murugu Nachippan ◽  
Mathew Alphonse ◽  
V.K Bupesh Raja ◽  
Soma Shasidhar ◽  
G. Varun Teja ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Composite Material ◽  
Hybrid Composite ◽  
Automotive Application ◽  
Hemp Fiber ◽  
Hybrid Composite Material

Experimental Investigation of Dynamic Characteristics of Swing and Tilted Disc Check Valves

2014 ◽  
Author(s):  
Jerzy Marcinkiewicz ◽  
Adam Adamkowski ◽  
Mariusz Lewandowski ◽  
Waldemar Janicki
Keyword(s):  
Experimental Investigation ◽  
Dynamic Characteristics ◽  
Check Valve ◽  
Free Fall ◽  
Friction Forces ◽  
Initial Flow ◽  
Flow Rates ◽  
Fluid Transient ◽  
Angular Velocities ◽  
Tilted Disc

The present work describes an experimental investigation of the dynamic characteristics of check valves, which means experimental examination of closing function and ability to generate pressure transients under different flow decelerations in the pipeline. Two designs of check valves are tested: a swing disc and a tilted disc check valve. The valves are mounted on discharge pipe of a centrifugal pump. The fluid transient is generated by stopping the pump motor from actual velocity to completely stop in a prescribed time. Each of the check valves is subjected to tests covering different pressure levels in the upper reservoir, initial flow rates in the pipeline, several decelerations of pump rotation, three settings of torque acting on the valve disc, three values of the moment of friction forces acting on the valve axis and finally free fall of the disc in stagnant water and air. The test stand, the instrumentation and chosen valves as well as scope and conditions for performing the experiments are described. Selected measured results like angular velocities of the discs, pressures in the pipe at different conditions, and volumetric flow rates are presented and discussed. The dynamic behaviors of the tested valves were compared with each other.

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