| Abstrakt: |
The paper presents an overview of the efficiency for a hydraulic circuit with 4/2-way hand-lever valves. Thereby in this article we are studying three hydraulic circuits which contain 4/2-way hand-lever valves. The first hydraulic circuit contains the following devices: pump unit, tank, 4/2-way hand-lever valve, throttle valve, double acting cylinder (Dou 1-1). The second hydraulic circuit contains the following components: pump unit, tank, 4/2-way hand-lever valve, pressure relief valve, double acting cylinder (Dou 2- 1), and 2-way flow control valve. The last circuit, which is actually a hydraulic system, contains the following components: pump unit, tank, 4/2-way hand-lever valve, non-return valves, 2-way flow control valve, double acting cylinders (Dou 3-1 and Dou 3-2). [ABSTRACT FROM AUTHOR] |
