In order to ensure that the pressure difference between the front and rear of the throttle valve remains unchanged when the load changes, the flow through the throttle valve is basically unchanged. The throttle valve is often connected with ( ) to form a speed control valve, or the throttle valve and ( ) are connected in parallel to form a bypass speed control valve.
A: Pressure reducing valve
B: constant pressure reducing valve
C: overflow valve
D: differential pressure relief valve
A: Pressure reducing valve
B: constant pressure reducing valve
C: overflow valve
D: differential pressure relief valve
举一反三
- Which of the following hydraulic control valves belongs to pressure control valve （ ）. A: Unloading valve B: overflow throttle valve C: Hydraulic control check valve D: Low pressure selector valve
- A throttle valve is a simple flow control valve, a throttle valve is virtually equal to( ).
- The commonly used pressure control valve in hydraulic transmission system is ( ) A: directional valve B: relief valve C: hydraulic control check valve
- In an automatic transmission, the shift lever hooks up to the( ). A: inlet valve B: vacuum modulator C: manual valve D: throttle valve
- Direct acting relief valve is often used as the pilot valve of safety valve or other pilot relief valve. ( )