| 摘要 |
The invention relates to an electromagnetic valve (1) for controlling the flow of a pressure medium, comprising a valve housing (2) with an inlet opening (2.1) and an outlet opening (2.2) for the pressure medium; at least one through-opening (3), which connects the inlet opening (2.1) to the outlet opening (2.2), for the pressure medium; a valve slide (4) that can be moved axially between a first rest position (I), which closes the through-opening (3), and a second rest position (II), which opens the through-opening (3), by means of a magnetic coil (5); and a spring arrangement (6) which positions the valve slide (4) in the first or the second rest position (I, II) when the magnetic coil (5) is not energized. According to the invention, the spring arrangement (6) comprises a first spring portion (6.1) and a second spring portion (6.2), which is serially connected to the first spring portion, and the second spring portion (6.2) has a smaller spring constant than the first spring portion (6.1). Furthermore, a spring path limiting means (7) is provided which limits a specified spring path of the second spring portion (6.2) in order to position the valve slide (4) in an intermediate position (III) between the first and second rest position (I, II) by means of the energized magnetic coil (5), and the valve slide (4) is designed to release at least a partial cross-section of the through-opening (3) in the intermediate position (III). |
