Abstract: A cooling device for an electric energy supply (2) has at least one first heat-dissipating part (3). The power components (4) of the first heat-dissipating part are connected to the cooling device (1) in a thermally conductive manner. A fluid-conducting connection (5) conducts liquid coolant (6) from a pump (7) to a cooler (8) over the first heat-dissipating part (3). One shut-off unit (9?, 9) each is arranged in the fluid-conducting connection (5) at least between the first heat-dissipating part (3) and the cooler (8) and between the pump (7) and the first heat-dissipating part (3). To avoid an overpressure in at least one part (3, 14) to be cooled, at least one pressure-limiting valve (17, 28) is provided.

Abstract: The invention relates to a cooling device for an electric energy supply (2), comprising at least one first heat-dissipating part (3), the power components (4) of which are connected to the cooling device (1) in a thermally conductive manner, wherein a fluid-conducting connection (5) conducts liquid coolant (6) from a pump (7) to a cooler (8over the first heat-dissipating part (3), wherein one shut-off unit (9?, 9) each is arranged in the fluid-conducting connection (5) at least between the first heat-dissipating part (3) and the cooler (8) and between the pump (7) and the first heat-dissipating part (3).

Abstract: A lubricating device for gear trains (10), especially for wind power stations, includes at least two gear stages (16,18) that are disposed next to each other and are effectively interconnected, and a lubricant circuit (20) into which at least one filter unit (26) is mounted. To prevent stagnant resting zones for the lubricant from being created within the gear train housing including the gear stages, while ensuring that the entire lubricant that circulates in the gear stages is fed to the filter unit to be drawn off and filtered within predefined periods of time, the lubricant circulating inside the lubricant circuit (20) is discharged at one gear stage (18), is drawn off through the filter unit, and can then be fed to the other gear stage (16).

Abstract: The invention relates to a lubricating device for gear trains (10), especially for wind power stations, comprising at least two gear stages (16,18) that are disposed next to each other and are effectively interconnected, and a lubricant circuit (20) into which at least one filter unit (26) is mounted. In order to prevent stagnant resting zones for the lubricant from being created within the gear train housing comprising the gear stages while ensuring that the entire lubricant that circulates in the gear stages is fed to the filter unit in order to be drawn off and filtered thereby within predefined periods of time, the lubricant circulating inside the lubricant circuit (30) is discharged at one gear stage (18), is drawn off by means of the filter unit, and then can be fed to the other gear stage (16).