A measuring dipstick for a gear case of a train includes a handle configured to extend outside of the gear case when the measuring dipstick extends within an opening of the gear case and an insertion portion. The insertion portion includes a plurality of level indicators spaced along the insertion portion at intervals, a bend in the insertion portion that separates a proximal portion of the insertion portion from a distal portion of the insertion portion, and an orientation indicator configured to identify a correct orientation for the measuring dipstick when the insertion portion is inserted within the opening of the gear case.

A gearbox arrangement includes at least one turbo gearbox device and is designed to provide partial vacuum within the gearbox device. The gearbox arrangement includes a vacuum pump, a vacuum oil tank, an oil pump coupled to the vacuum oil tank, a plurality of valves; a sensor unit and a control unit which is designed to control at least the vacuum pump and the oil pump respectively depending on momentary sensor data. The vacuum oil tank and at least one of the valves provide for a switchable siphon arrangement such that a predefinable vacuum level is ensured within the Inner volume by means of the vacuum pump and via the vacuum oil tank and by controlling the vacuum pump depending on momentary sensor data.

A lubrication system for a mechanical system, the lubrication system comprising a main tank, a reserve tank and a main lubrication circuit. The main lubrication circuit comprises, in particular, a pump drawing in the lubricating liquid from the main tank via a main suction point and a main suction pipe connecting the main suction point to the pump. The reserve tank is supplied with lubricating liquid either directly from the main tank or via the main lubrication circuit. The reserve tank is connected to the main suction pipe via an outlet pipe and the reserve tank is located above the main suction point so that the lubricating liquid flows through the outlet pipe to the main suction pipe by gravity.

A discharged liquid circulation system, an electric drive power assembly and an automobile are disclosed. The discharged liquid circulation system includes a first liquid collecting tank and a second liquid collecting tank, the first liquid collecting tank and the second liquid collecting tank being in communication communicated with each other, and a first liquid level sensor and a second liquid level sensor are provided in the second liquid collecting tank; an electromagnetic reversing valve that includes a first liquid inlet and a second liquid inlet that extend into the first liquid collecting tank and the second liquid collecting tank through two pipes, respectively; and an electric pump, wherein a liquid inlet of the electric pump is connected to a liquid outlet of the electromagnetic reversing valve through a first pipe, and a liquid outlet of the electric pump is connected to a corresponding liquid spray nozzle through a second pipe.

An exciter apparatus includes an exciter housing and at least one bearing means supporting at least one driven shaft carrying eccentric mass means. The exciter housing includes an array of bore passages extending from an upper wall of the exciter housing to a lower wall of the exciter housing. A mounting structure plate is securable to mineral processing or handling equipment intended to be vibrated by the exciter apparatus. The mounting structure plate has an array of fastener receiving zones, whereby elongated fastener means can pass through the bore passages from the upper wall to be engaged in the fastener receiving zones. The exciter apparatus further includes a pair of bearing members supporting a pair of driven shafts having intermeshing gears. Each of the bearing members and intermeshing gears have individual liquid lubrication sump zones separate from one another, and cooling means for cooling moving parts of the exciter apparatus.

A vibration exciter apparatus includes an exciter housing and at least one bearing means supporting at least one driven shaft carrying eccentric mass means. The exciter housing has an array of bore passages extending from an upper wall of the exciter housing to a lower wall of the exciter housing and a mounting structure plate securable to mineral processing or handling equipment intended to be vibrated by the exciter apparatus. The mounting structure plate includes an array of fastener receiving zones, whereby elongated fastener means can pass through the bore passages from the upper wall to be engaged in the fastener receiving zones.

A gearbox arrangement includes at least one turbo gearbox device and is designed to provide partial vacuum within the gearbox device. The gearbox arrangement includes a vacuum pump, a vacuum oil tank, an oil pump coupled to the vacuum oil tank, a plurality of valves; a sensor unit and a control unit which is designed to control at least the vacuum pump and the oil pump respectively depending on momentary sensor data. The vacuum oil tank and at least one of the valves provide for a switchable siphon arrangement such that a predefinable vacuum level is ensured within the Inner volume by means of the vacuum pump and via the vacuum oil tank and by controlling the vacuum pump depending on momentary sensor data.