| 摘要 |
A pressure regulator device with an inlet (3) for connecting to a pump-feeding fluid and an outlet (7) for connection to a fluid consumption place, has a throttle valve (29) between the inlet (3) and the outlet (7) as well as a pressure-controlled regulator valve (30, 31) for drawing off the surplus fluid from the outlet to a return pipe. The regulator valve is controlled by a different piston areas working together (A1, A2) presenting double pistons (32) in a cylinder housing (33) , whose corresponding end against the smaller piston area is connected (34) to the inlet and whose corresponding end toward the larger piston area is connected to the outlet.<IMAGE> |
