scholarly journals ANALYSIS OF A LOAD SENSING HYDRAULIC FLOW CONTROL VALVE

1996 ◽  
Vol 1996 (3) ◽  
pp. 307-312 ◽  
Author(s):  
Rathindranath MAITI ◽  
Sandip PAN ◽  
Debasis BERA
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Hydraulic Flow ◽  
Load Sensing

Proportional Hydraulic Flow Control Valves with Simple and Differential Command

2014 ◽  
Vol 658 ◽  
pp. 547-552
Author(s):  
Mihai Avram ◽  
Constantin Bucşan ◽  
Despina Duminică ◽  
Alina Popescu-Cuta
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Original Solution ◽  
Control Valves ◽  
Hydraulic Flow ◽  
Two Systems

The paper brings in an original solution of proportional hydraulic flow control valve, which can function with both simple and differential command. The static adjustment characteristic of this equipment is analyzed. Also, two systems that integrate the discussed equipment are taken into account.

Modeling and Stability of a Hydraulic Load-Sensing Pump With Investigation of a Hard Nonlinearity in the Pump Displacement Control System

2014 ◽  
Author(s):  
Zachary D. Wagner ◽  
Roger Fales
Keyword(s):  
Control System ◽  
Stability Analysis ◽  
Flow Control ◽  
Control Valve ◽  
Pressure Control ◽  
Flow Control Valve ◽  
Pump System ◽  
Load Sensing ◽  
Pressure Control System ◽  
The Stability

Certain types of Load-sensing (LS) pumps utilize a hydro-mechanical control system designed to regulate the pressure difference, or margin pressure, between the inlet and outlet of a flow control valve. With a constant margin pressure, predictable flow control can be achieved by controlling the orifice area of the flow control valve. In this work, the stability of the pressure control system will be investigated. A combination of linear analysis and nonlinear analysis is employed to assess the stability of a particular LS pump system. Among many nonlinearities present in the hydro-mechanical system, of particular interest is the saturation inherent in the actuator that is used to displace the pump swash plate and the saturation within the 3-way spool valve that permits flow to reach the actuator. This saturation nonlinearity has been isolated from the rest of the system to enable stability analysis. Analysis of model characteristics is used to make conclusions about the stability of the system consisting of interconnected linear and nonlinear portions. The stability analysis is compared to results obtained through a simulation study using a nonlinear model based on first principles.

scholarly journals On Jumping Phenomena of Oil Hydraulic Flow Control Valve

1965 ◽  
Vol 31 (222) ◽  
pp. 275-285
Author(s):  
Toshio TAKENAKA ◽  
Eizo URATA ◽  
Takahiro KOMIYA ◽  
Michinobu KONNO
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Hydraulic Flow

scholarly journals Modeling of Oil Hydraulic Flow Control Valve.

2001 ◽  
Vol 67 (658) ◽  
pp. 1832-1839
Author(s):  
Seiichi WASHIO ◽  
Yoshinari NAKAMURA ◽  
Yongguang YU
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Hydraulic Flow

B211 Modeling of Three-Port Hydraulic Flow Control Valve Actuated by Linear Solenoid for AT

2015 ◽  
Vol 2015.14 (0) ◽  
pp. 318-321
Author(s):  
Daiki Kaneko ◽  
Mitsuo Hirata ◽  
Masayasu Suzuki ◽  
Yutaka Kaneko ◽  
Kazutaka Adachi
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Hydraulic Flow

A Multi-modes Flow Control Valve for Simplifying the Driving System of Pneumatic Soft Robots

2020 ◽  
pp. 1-1
Author(s):  
Yang Yang ◽  
Yongjian Zhao ◽  
Songyi Zhong ◽  
Yan Peng ◽  
Yi Yang ◽  
...  
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Soft Robots ◽  
Driving System

Pattern Recognition Approach to Fault Diagnosis in the DAMADICS Benchmark Flow Control Valve

2003 ◽  
Vol 36 (5) ◽  
pp. 861-866 ◽  
Author(s):  
A. Marciniak ◽  
C.D. Bocăială ◽  
R. Louro ◽  
J. Sa da Costa ◽  
J. Korbicz
Keyword(s):  
Pattern Recognition ◽  
Fault Diagnosis ◽  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve ◽  
Pattern Recognition Approach

Design and evaluation of orifice arrangement for particle-excitation flow control valve

2011 ◽  
Vol 171 (2) ◽  
pp. 283-291 ◽  
Author(s):  
Daisuke Hirooka ◽  
Koichi Suzumori ◽  
Takefumi Kanda
Keyword(s):  
Flow Control ◽  
Control Valve ◽  
Flow Control Valve

Design and Analysis of a Flow-Control Valve With Controllable Pressure Compensation Capability for Mobile Machinery

2021 ◽  
Author(s):  
Bo Wang ◽  
Yunwei Li ◽  
Long Quan ◽  
Lianpeng Xia
Keyword(s):  
Pressure Drop ◽  
Flow Control ◽  
Pressure Difference ◽  
Control Valve ◽  
Flow Control Valve ◽  
Continuous Control ◽  
Small Flow ◽  
Pressure Compensation ◽  
Force Compensation ◽  
Control Accuracy

Abstract There are the problems in the traditional pressure-compensation flow-control valve, such as low flow control accuracy, small flow control difficulty, and limited flow range. For this, a method of continuous control pressure drop Δprated (i.e. the pressure drop across the main throttling orifice) to control flow-control valve flow is proposed. The precise control of small flow is realized by reducing the pressure drop Δprated and the flow range is amplified by increasing pressure drop Δprated. At the same time, it can also compensate the flow force to improve the flow control accuracy by regulating the pressure drop Δprated. In the research, the flow-control valve with controllable pressure compensation capability (FVCP) was designed firstly and theoretically analyzed. Then the sub-model model of PPRV and the joint simulation model of the FVCP were established and verified through experiments. Finally, the continuous control characteristics of pressure drop Δprated, the flow characteristics, and flow force compensation were studied. The research results demonstrate that, compared with the traditional flow-control valve, the designed FVCP can adjust the compensation pressure difference in the range of 0∼3.4 MPa in real-time. And the flow rate can be altered within the range of 44%∼136% of the rated flow. By adjusting the compensation pressure difference to compensate the flow force, the flow control accuracy of the multi-way valve is improved, and the flow force compensation effect is obvious.

Sign in / Sign up

Export Citation Format

Share Document