A turbomachine includes a fan shaft driven by a turbine shaft via a device for reducing a speed of rotation. The turbomachine includes an uncoupling device interposed between the reduction device and the turbine shaft. The uncoupling device is configured to uncouple the reduction device and the turbine shaft in response to the exceeding of a determined resistant torque exerted by the reduction device on the turbine shaft.

A turbomachine includes a fan shaft driven by a turbine shaft via a device for reducing a speed of rotation. The turbomachine includes an uncoupling device interposed between the reduction device and the turbine shaft. The uncoupling device is configured to uncouple the reduction device and the turbine shaft in response to the exceeding of a determined resistant torque exerted by the reduction device on the turbine shaft.

The bundle compressor to a bundle motor for compressor unit compressor unit includes one at fastening device configured to fasten the compressor bundle to a motor casing of the motor compressor unit, and also includes at least one opening sized to couple a motor rotor and a compressor rotor through the at least one opening.

It is intended to provide a motor having a sufficient heat dissipation function even when a non-magnetic material having low thermal conductivity is used for a shaft of a motor using a consequent pole rotor. A motor 1 includes: a stator; a consequent pole rotor including a rotor core and a magnet; a casing housing the stator and the rotor; a shaft 8 including a non-magnetic material and fixed to the rotor; and heat dissipation blades 24 that are a first heat dissipation promoting means that rotates with the shaft 8. This promotes heat dissipation through a heat dissipation path from an inside of the motor 1 through the shaft 8, preventing problems due to overheat in the motor 1.

It is intended to provide a motor having a sufficient heat dissipation function even when a non-magnetic material having low thermal conductivity is used for a shaft of a motor using a consequent pole rotor. A motor 1 includes: a stator; a consequent pole rotor including a rotor core and a magnet; a casing housing the stator and the rotor; a shaft 8 including a non-magnetic material and fixed to the rotor; and heat dissipation blades 24 that are a first heat dissipation promoting means that rotates with the shaft 8. This promotes heat dissipation through a heat dissipation path from an inside of the motor 1 through the shaft 8, preventing problems due to overheat in the motor 1.

An impeller is provided, including a metal housing, a shaft, and a plastic member. The metal housing has a shaft mounting hole. The inner surface of the shaft mounting hole includes three or more contact points, and the contact points are closer to the shaft than other portions of the inner surface of the shaft mounting hole. The shaft passes through the shaft mounting hole and is affixed by the contact points. The metal housing divides the shaft into an upper section, a middle section, and a lower section. The plastic member passes through the shaft mounting hole and is in contact with the middle section.

A spline assembly includes a shaft having an outer surface with a shaft spline extending along the outer surface. The spline assembly may further include a hub having an inner surface with a hub spline extending along the inner surface and configured to mate with the shaft spline of the shaft. The spline assembly may further include a spline engagement aid configured to be coupled to the shaft and having an aid spline configured to engage with the hub spline to facilitate alignment of the shaft spline relative to the hub spline.

A single-shaft turbo compressor having a rotor extending along an axis, an outer housing, static flow fittings, bearings for supporting the rotor, and at least one first shaft seal, wherein the rotor has a shaft and an impeller arranged on the shaft, wherein the static flow fittings have supply elements, intermediate elements and discharge elements, and wherein the outer housing has a casing part that is open at the end on both sides. A first cover of the outer housing is connected to a first shaft seal, wherein supply lines and discharge lines of the first shaft seal are provided extending through the first cover into a wall thickness of the casing part adjacent to the first cover.

A single-shaft turbo compressor having a rotor extending along an axis, an outer housing, static flow fittings, bearings for supporting the rotor, and at least one first shaft seal, wherein the rotor has a shaft and an impeller arranged on the shaft, wherein the static flow fittings have supply elements, intermediate elements and discharge elements, and wherein the outer housing has a casing part that is open at the end on both sides. A first cover of the outer housing is connected to a first shaft seal, wherein supply lines and discharge lines of the first shaft seal are provided extending through the first cover into a wall thickness of the casing part adjacent to the first cover.

A mounting structure for mounting a first member and a second member on each other forming a device such as a cooling fan or the like. The mounting structure is equipped with a rubber joining member provided between the first member and the second member, having a curing property and joining the first member and the second member, and a first metal member provided on the first member on a side opposite to the joining member and having an elastic force restricting the relative movement of the first member to the second member.