An electric pump for moving a liquid having an electric motor contained in a shell enclosed by a monolithically provided containment jacket. The pump includes a mechanical section having an assembly for moving liquid via impellers and diffusers, an electromechanical section, which includes an electric motor in a shell that includes a rotor and a stator and first and second covers at the ends of the containment jacket having an intake port and a delivery port which are fluidically connected to the mechanical section.

A bearing housing for an exhaust gas turbocharger may include a bearing housing cover arranged on a bearing housing wall. The bearing housing cover may include a penetrating rotation-symmetrical sealing recess with a centre axis and may have a locating surface facing the bearing housing wall and radially extending from the centre axis. The bearing housing may include a sealing bush arranged in at least one region of the sealing recess. The sealing bush may have a stop surface arranged opposite the locating surface and may include a penetrating shaft recess disposed rotation-symmetrical relative to the centre axis. The bearing housing cover may further include an at least partly circulating groove disposed on the locating surface radially spaced from the centre axis. The groove may include a drainage region arranged below the centre axis and extending from the centre axis radially to an outside.

A steam turbine includes a rotating shaft (1); a rotor blade (4) having a platform (43) and a rotor blade main body (40); a casing (2); a stationary blade (7) having a stationary blade main body (70) and a stator shroud (71); and a projecting portion (45A) that projects from the platform (43) toward a upstream side in a central axis direction (Da). The projecting portion (45A) has, on a side thereof facing a radially inner side, a guide surface (45f) that gradually inclines or curves radially inward from a base end portion (45s) on the platform (43) side to a tip end portion (45t) on an upstream side in the central axis direction (Da).

A motorized pump assembly includes a pump and a motor for driving the pump. The pump includes a pump housing that at least in part defines a pump chamber. The motor includes a stator, a rotor rotatable about an axis, a motor housing, and a bearing assembly. The rotor includes a motor shaft extending along the axis. The motor housing includes an endshield that at least in part defines a motor chamber in which the stator and the rotor are at least substantially received. The bearing assembly rotatably supports the motor shaft on the endshield. The pump housing and the endshield are fixed to one another and cooperatively at least in part define an overflow chamber adjacent the pump chamber. The endshield defines a drainage channel fluidly interconnected with the overflow chamber and configured to direct fluid from the overflow chamber away from the bearing assembly.

A recirculation pump includes an impeller, a pump motor assembly, and a heater. The pump motor assembly includes a pump housing having a pump cavity and a pump motor arranged in the pump cavity that drives the impeller, the pump housing arranged axially away from the impeller. The heater is disposed on or in the pump housing and spaced apart from the impeller. The heater is configured to increase a temperature of any portion of the fluid that leaks from the impeller into the pump cavity and resides in the pump cavity. The increase in the temperature causes the fluid that resides in the pump cavity to flow toward the impeller and exit the pump cavity.

A shaft bearing assembly having a shaft supported in a bearing housing is described. The shaft bearing assembly includes a pressure reduction device for generating an underpressure inside the bearing housing. The pressure reduction device is operated by employing an incompressible fluid. Further, a method of reducing a pressure inside a bearing housing supporting a shaft is described. The method includes using an incompressible fluid for operating a pressure reduction device for generating an underpressure inside the bearing housing.

A jet engine with a bearing chamber, a sealing chamber, a de-aeration chamber and a bearing chamber support, the support delimiting the bearing chamber comprising at least one bearing appliance in certain areas. The bearing chamber is separated from the sealing chamber via a sealing appliance, with the sealing chamber being separated via a further sealing appliance from the de-aeration chamber that is arranged at the side of the sealing chamber facing away from the bearing chamber. The sealing chamber is connected to a sealing air conduit, by which the bearing chamber can be supplied with a sealing air volume flow. The de-aeration chamber is connected to a de-airing appliance via which a volume flow can be discharged from the de-aeration chamber into a core flow channel of the jet engine. The de-airing appliance is embodied as at least one air extraction duct with a tubular flow cross-section.

A sealing assembly for sealing between an oil cavity and an air cavity of a gas turbine is provided. The sealing assembly comprising a seal having a seal element and a circumferential seal housing receiving the seal element. The seal housing has an annulus extending circumferentially around a center axis, radially between an outer periphery and an inner periphery, and axially along the center axis between a first surface and a second surface. The seal housing has a collecting channel defined circumferentially in the inner periphery about the center axis and a draining pocket defined in a portion of the seal housing configured and disposed to in use collect liquid oil during engine operation. The draining pocket extends from the collecting channel to the first surface and configured to communicate collected liquid oil from the collecting channel to the oil cavity.

A steam turbine system includes: a steam turbine having a casing into which steam is fed from an outside of the casing and a rotating shaft that is provided within the casing so as to be rotatable around a central axis; a deaerator that is connected to the steam turbine and that deaerates leaked steam that has leaked from a gap between the casing and the rotating shaft to the outside of the casing; a vacuum pump that is connected to the deaerator and that lowers a pressure within the deaerator; and a shaft sealing device that is connected to the deaerator and that seals the gap between the casing and the rotating shaft. The shaft sealing device has a seal member having a seal body, a housing, a biasing member, and a negative-pressure introduction part.

The fluid pump according to the present invention has water storage means that is formed so as to communicate with a shaft hole in a pump case and stores fluid leaking from a mechanical seal. An electromagnetic clutch establishes or blocks the transmission of power to a drive shaft by switching between supply and non-supply of electricity to an excitation coil. The water storage means has a weep chamber that communicates with the shaft hole between the mechanical seal and a bearing and is opened to an end portion in the axial direction. An attachment member for attaching a core of the electromagnetic clutch to the pump case seals the opening of the weep chamber.