| 摘要 |
The invention relates to an electromagnet for a hydraulic system, in particular for an automatic transmission of a motor vehicle, having an armature space, which can be flow-connected to hydraulic lines of the hydraulic system, is filled with hydraulic medium, and in which an armature (11) is mounted in a stroke-adjustable manner (h2), said armature having a shut-off body and dividing the armature space into an aperture-side chamber (37), which faces the flow aperture, and an inner chamber (39), which faces away therefrom, an oil exchange taking place during a stroke movement of the armature, during which a displacement volume of the hydraulic medium flows from the aperture-side chamber (37) into the inner chamber (39). According to the invention, the electromagnet has a hydraulic medium reservoir (55), the hydraulic medium of which has a higher purity than the hydraulic medium in the hydraulic line (31), and which is flow-connected to the aperture-side chamber. |
