A arranged in the casing and configured to rotate around a vertical rotation axis. The rotor comprises at least one impeller having an impeller suction side and an impeller delivery side. The compressor includes a gas inlet and a gas outlet, as well as a gas flow path extending from the gas inlet to the gas outlet. An inlet plenum extends from the gas inlet towards the impeller suction side. At least one suction tube having a lower suction end and an upper discharge end is arranged such that the lower suction end thereof is arranged at a bottom of the inlet plenum. The suction tube extends upwardly towards the impeller suction side.

A vertical multi-stage pump includes a rotation shaft extending in a vertical direction, a plurality of impellers fixed to the rotation shaft, a multi-stage pump chamber accommodating the plurality of impellers and comprising a suction port for a first-stage impeller at a lower end, a lower casing comprising a suction nozzle extending in a horizontal direction and forming a communication space communicating the suction nozzle and the suction port, and an inner cylinder member interposed between the multi-stage pump chamber and a lower casing and expanding the communication space in a vertical direction.

An engine case may include a first half and a second half. The first half may have a semiannular geometry with a first flange located at a circumferential edge of the first half. The second half may also have a semiannular geometry. The second half may further include a flange located at a circumferential edge of the first half. The second flange may be aligned with the first flange and mechanically coupled to the first flange. The first flange and the second flange may be configured to substantially align with an engine mounting point. The engine case may also have an annular geometry.

A simple and cost-effective device to shift a structural resonance in a vertical long shaft pump is disclosed. T disclosed device comprising portion of a motor of the vertical pump by using a plurality of fasteners, and one an upper plate and a lower plate being adapted for fitment at a non-driving end or more annular plates adapted for fitment at the non-driving end portion of the motor between the upper plate and the lower. Each of the one or more annular plates comprises an annular central hole with splined grooves to engage with cooling fins of the motor. The device further comprises tie rods for fitment with flanges of a column pipe of the vertical pump using Bellville washers and bolts, and mass blocks with matching square internal threading for fitment with the tie rods to add mass at required location.

A turbine vane assembly adapted for use with a gas turbine engine includes an airfoil and a spar. The airfoil is formed to define a cavity that extends into the airfoil. The spar is located in the cavity to define a cooling passage that extends around the spar between the spar and the airfoil. The turbine vane assembly includes cooling features to aid heat transfer of the turbine vane assembly during operation in the gas turbine engine.

A turbine vane assembly adapted for use with a gas turbine engine includes an airfoil and a spar. The airfoil is formed to define a cavity that extends into the airfoil. The spar is located in the cavity to define a cooling passage that extends around the spar between the spar and the airfoil. The turbine vane assembly includes cooling features to aid heat transfer of the turbine vane assembly during operation in the gas turbine engine.

A bearing arrangement for guiding a motor shaft for supporting axial and/or radial forces of a vertical turbine pump. The bearing arrangement includes a bearing comprising an inner ring which can be non-rotatably connected to the motor shaft and an outer ring, an oil sump filled with an oil, within which the bearing is arranged at least partially immersed in the oil, and an inner oil deflector which is non-rotatably connected to the inner ring and deflects oil conveyed between the inner ring and the outer ring back into the oil sump as a result of rotation of the bearing.

The centrifugal compressor comprises a casing and a rotor arranged in the casing and configured to rotate around a vertical rotation axis. The rotor comprises at least one impeller having an impeller suction side and an impeller delivery side. The compressor includes a gas inlet and a gas outlet, as well as a gas flow path extending from the gas inlet to the gas outlet. An inlet plenum extends from the gas inlet towards the impeller suction side. At least one suction tube having a lower suction end and an upper discharge end is arranged such that the lower suction end thereof is arranged at a bottom of the inlet plenum. The suction tube extends upwardly towards the impeller suction side.

A simple and cost-effective device to shift a structural resonance in a vertical long shaft pump is disclosed. T disclosed device comprising portion of a motor of the vertical pump by using a plurality of fasteners, and one an upper plate and a lower plate being adapted for fitment at a non-driving end or more annular plates adapted for fitment at the non-driving end portion of the motor between the upper plate and the lower. Each of the one or more annular plates comprises an annular central hole with splined grooves to engage with cooling fins of the motor. The device further comprises tie rods for fitment with flanges of a column pipe of the vertical pump using Bellville washers and bolts, and mass blocks with matching square internal threading for fitment with the tie rods to add mass at required location.