| 摘要 |
Regulating device, comprising a housing (11) providing a first chamber (12) in which a first pressure is present and a second chamber (13) in which a second pressure is present; a flow restriction valve (20) positioned in the housing (11), wherein the flow restriction valve (20) comprises a valve body (21) acting together with a flow restriction seat (22); and wherein the flow restriction valve (20) adjusts the flow from the first chamber (12) into the second chamber (13); a servo valve (23) positioned in the housing (11), wherein the servo valve (23) comprises a valve body (24) attached to a membrane (25), wherein the membrane (25) defines a servo chamber (26) in which a servo pressure is present, wherein the servo chamber (26) is connected to the first chamber (12) though a fixed flow restriction element (27), and wherein the servo chamber (26) is connected to the second chamber (13) though an adjustable flow restriction element (28); a stepper motor (33) for moving the valve body (24) of the servo valve (23) thereby adjusting the adjustable flow restriction element (28), wherein the adjustment of the adjustable flow restriction element (28) causes a change of the servo pressure being present in the servo chamber (26) which is used to move the flow restriction valve (20) to a position reflecting a defined flow resistance between the valve body (21) of the flow restriction valve (20) and the flow restriction seat (22). (Figure 1) |
