Disclosed are a bailer-type long-shaft pump (100) and an associated pump station (200). The long-shaft pump comprises a bailer vehicle (110), a long shaft (120), a bearing (130), a transmission device (140) and an electric motor (150). One end of the long shaft (120) successively passes through the bearing (130) and the transmission device (140) so as to be in transmission connection with a drive shaft of the electric motor (150). The pump station (200) comprises a pump station foundation (210), several equipment rooms (231) transversely distributed at intervals and constructed on the pump station foundation (210), and two ends of the long shaft (120) are supported on side walls of two adjacent equipment rooms. The bailer-type long-shaft pump achieve large water flow and low lift, the pump station is space-saving, has shorter construction cycle, and reduces investment and operation costs.

Disclosed are a bailer-type long-shaft pump (100) and an associated pump station (200). The long-shaft pump comprises a bailer vehicle (110), a long shaft (120), a bearing (130), a transmission device (140) and an electric motor (150). One end of the long shaft (120) successively passes through the bearing (130) and the transmission device (140) so as to be in transmission connection with a drive shaft of the electric motor (150). The pump station (200) comprises a pump station foundation (210), several equipment rooms (231) transversely distributed at intervals and constructed on the pump station foundation (210), and two ends of the long shaft (120) are supported on side walls of two adjacent equipment rooms. The bailer-type long-shaft pump achieve large water flow and low lift, the pump station is space-saving, has shorter construction cycle, and reduces investment and operation costs.

A vacuum rotor system is provided comprising a hollow rotor with a rotor jacket that is open at both ends perpendicular to the axis of rotation and with at least two hubs that are connected to the inside of the rotor jacket and that are suitably mounted in appropriate bearings so that the rotor can rotate. A machine housing that encloses the rotor and that has at least one gas outlet opening to discharge gases from the machine housing. A vacuum system that is connected to the gas outlet opening and that has at least one forepump for generating a fore-vacuum pressure in the machine housing. At least one first gas removal device with a gas pick-up opening is arranged in the machine housing between the hub and the appertaining open end of the rotor jacket.

A vacuum rotor system is provided comprising a hollow rotor with a rotor jacket that is open at both ends perpendicular to the axis of rotation and with at least two hubs that are connected to the inside of the rotor jacket and that are suitably mounted in appropriate bearings so that the rotor can rotate. A machine housing that encloses the rotor and that has at least one gas outlet opening to discharge gases from the machine housing. A vacuum system that is connected to the gas outlet opening and that has at least one forepump for generating a fore-vacuum pressure in the machine housing. At least one first gas removal device with a gas pick-up opening is arranged in the machine housing between the hub and the appertaining open end of the rotor jacket.

A controllable Pitot device uses a Pitot nozzle supported by a Pitot nozzle holder for pumping fluid flowing in a first direction or in a second direction flowing opposite the first direction. The Pitot nozzle has one ingestion inlet pivotable to ingest fluid from either direction. Ingested fluid impinges on an obstacle interior to the Pitot nozzle which is disposed opposite the ingestion inlet to create a zone of fluid at stagnation pressure. Stagnation pressure pumps fluid via the interior of the Pitot nozzle through one of two openings for discharging pumped fluid out of a discharge outlet supported by the nozzle holder, to the exterior of the Pitot device. The nozzle holder can be a support structure or an embedded support operative with a rotating fluid machine.

A controllable Pitot device uses a Pitot nozzle supported by a Pitot nozzle holder for pumping fluid flowing in a first direction or in a second direction flowing opposite the first direction. The Pitot nozzle has one ingestion inlet pivotable to ingest fluid from either direction. Ingested fluid impinges on an obstacle interior to the Pitot nozzle which is disposed opposite the ingestion inlet to create a zone of fluid at stagnation pressure. Stagnation pressure pumps fluid via the interior of the Pitot nozzle through one of two openings for discharging pumped fluid out of a discharge outlet supported by the nozzle holder, to the exterior of the Pitot device. The nozzle holder can be a support structure or an embedded support operative with a rotating fluid machine.

A turbomachine having a rotor that extends along a rotational axis and a radial bearing in which the rotor is radially mounted on a radial bearing point. In the axial region of the radial bearing point, the rotor has a hollow chamber annularly located in the circumferential direction in the region of the outer 20% of the diameter of the radial bearing point and which is thermally insulating between a radially inner core region of the rotor in the region of the radial bearing point and the radial outer region of the rotor in the region of the radial bearing point. A first shaft end of the rotor protrudes from the axial center of the radial bearing point by a projection over the radial bearing point, wherein a first quotient QLO of the projection OVH divided by the total length TLE of the rotor QLO=OVH/TLE>0.15.

A turbomachine having a rotor that extends along a rotational axis and a radial bearing in which the rotor is radially mounted on a radial bearing point. In the axial region of the radial bearing point, the rotor has a hollow chamber annularly located in the circumferential direction in the region of the outer 20% of the diameter of the radial bearing point and which is thermally insulating between a radially inner core region of the rotor in the region of the radial bearing point and the radial outer region of the rotor in the region of the radial bearing point. A first shaft end of the rotor protrudes from the axial center of the radial bearing point by a projection over the radial bearing point, wherein a first quotient QLO of the projection OVH divided by the total length TLE of the rotor QLO=OVH/TLE>0.15.

A planetary gearbox device, a gas turbine engine with a planetary gearbox device, and a method for producing a scoop pump. The planetary gearbox device includes an oil supply appliance, wherein the oil supply appliance has a ring-shaped scoop pump that is connected to the rotatable shaft of the planetary gearbox device and an oil supply fixedly arranged at the housing and by which oil is supplied to the scoop pump. The scoop pump has multiple blades that extend in a circumferentially arranged manner and extend from a radially outer area in the direction of a radially inner area. The blades delimit grooves extending in the circumferential direction in the radial direction and respectively form a groove base of the grooves. The oil is conducted from the oil supply to outlets via which oil is conducted out of the scoop pump in the radial direction outwards.

A planetary gearbox device, a gas turbine engine with a planetary gearbox device, and a method for producing a scoop pump. The planetary gearbox device includes an oil supply appliance, wherein the oil supply appliance has a ring-shaped scoop pump that is connected to the rotatable shaft of the planetary gearbox device and an oil supply fixedly arranged at the housing and by which oil is supplied to the scoop pump. The scoop pump has multiple blades that extend in a circumferentially arranged manner and extend from a radially outer area in the direction of a radially inner area. The blades delimit grooves extending in the circumferential direction in the radial direction and respectively form a groove base of the grooves. The oil is conducted from the oil supply to outlets via which oil is conducted out of the scoop pump in the radial direction outwards.