| 主权项 |
1. A valve control device (1)
having a housing (2) which has a vacuum chamber (3) and an atmospheric pressure chamber (4) which are separated from one another in a gas-tight manner by a spring-loaded diaphragm (5) having first and second opposing surfaces, the first surface in fluid contact with the vacuum chamber (3) and the second surface in fluid contact with the atmospheric pressure chamber (4); having a one-piece diaphragm plate (8) arranged to contact the first (7) and second surfaces of the diaphragm (5); and having a regulating rod (6) which, in the region of a regulating rod head (6A), is operatively connected to the diaphragm (5), wherein the diaphragm plate (8) is formed as a plastic injection-molded part, the regulating rod head (6A) is connected to the diaphragm plate (8) by being non-releasingly encapsulated by the diaphragm plate by injection molding of the plastic material of the diaphragm plate, the diaphragm plate is provided with a groove (23) in the vicinity of the regulating rod, the diaphragm (5) is provided with a fixing section (22) comprising a passage opening (21) adapted for resilient sealing engagement in the groove (23), and the diaphragm (5) is resiliently sealed in the groove (23) as the first (7) and second surfaces of the diaphragm (5) contact the one-piece diaphragm plate. |
