A turbocharger includes a housing and a rotor with a shaft that is housed within the housing. The turbocharger also includes a bearing structure that supports rotation of the shaft within the housing and a locating fastener that retains the bearing structure in a position relative to the housing. Furthermore, the turbocharger includes a heating system coupled to the locating fastener and that is configured for selectively heating the locating fastener.

A turbocharger includes a compressor housing, a turbo shaft, a bearing housing, a bearing cartridge, and a spacer. The compressor housing includes a backplate. The turbo shaft extends through the backplate and the bearing housing, and is rotatable about an axis. The backplate is positioned between an interior of the compressor housing and an interior of the bearing housing. The bearing cartridge is positioned in the bearing housing and rotatably supports the turbo shaft therein. The spacer is engaged with the bearing housing and an outer radial portion of the bearing cartridge to prevent rotation therebetween. The spacer includes a deflector formed integrally therewith that directs a lubricant axially away from the compressor housing.

A compressor having a compressor housing, a compressor rotor mounted in the compressor housing, which includes a shaft and moving blades forming multiple compressor stages. Between two compressor stages a magnetic bearing and a safety bearing are arranged, which, as split bearings, are each mounted on the shaft designed as one-piece shaft.

The invention relates to a shaft for supplying air to a fuel cell, comprising a tubular body (12), at least sections of which are hollow, and which has a first component (14) and a second component (16) that are connected to one another at respective neighbouring axial end sections (14a, 16a), and wherein air can flow through a hollow space (12a) of the tubular body (12) for cooling components arranged next to the shaft (10). The invention also relates to a radial compressor (1). The invention further relates to a method for producing a radial compressor (1).

A fan has an electronically commutated external-rotor motor serving to drive it. The motor has an internal stator (20) having a stator lamination stack (64) and a winding arrangement (66; 164, 166, 168, 170) associated with the stack. The internal stator has a central opening (149) for journaling a shaft (42). The fan further has a permanent-magnet rotor (28) separated from the internal stator (20) by a magnetically effective air gap (99). The internal stator (20) has a plastic coating (56, 58) that surrounds the stator windings, forms a bearing tube for journaling the shaft (42), and defines a wall element (62), implemented integrally with the plastic coating (56, 58), forming a compartment or cavity (108) for electrical components (112) of the motor. The plastic coating, bearing tube and compartment are preferably molded in a single working step.

A turbocharger includes a tubular floating bearing inserted into a bearing housing and a shaft inserted into the floating bearing. An annular slinger is arranged on an outer circumferential surface of at least one of opposite axial ends of the shaft, which protrudes from the float bearing. The bearing housing defines an oil discharge space surrounding the slinger externally in a radial direction. The bearing housing includes a guide wall protruding from an inner wall surface of the oil discharge space. The guide wall is configured to guide oil in the oil discharge space toward the oil discharge port.

A supercharger transmission case that includes both small and large impeller shaft bearing bores in a single component to avoid potential misalignment, and to allow the bores to be machined during the same machining setup by the same tool. The supercharger transmission case may be fabricated of low thermal expansion material, such as a hypereutectic metal matrix comprising aluminum and silicon, to further reduce thermal expansion of the transmission case and bearings.

A turbocharger assembly can include a shaft sleeve that includes a bore that extends between a compressor end and a turbine end, outer threads that extend to a first axial position from the compressor end, and an outer shoulder at a second, greater axial position from the compressor end; a lock nut that includes inner threads that mate with the outer threads of the shaft sleeve and an axial length that is less than a distance between the compressor end and the first axial position; and a bearing assembly that includes at least one inner race axially located by the outer shoulder of the shaft sleeve and axially located by the lock nut.

To provide a motor capable of suppressing movement of a shaft, bearings, or the like with respect to a case, a blower using the motor, and a cartridge for the motor. The motor includes a shaft, a rotor fixed to the shaft, a stator opposed to the rotor, a pair of bearings fixed to the shaft, a sleeve surrounding the pair of bearings, and a case including a support part configured to support the sleeve. The sleeve includes, in an axis X direction of the shaft, an engagement part configured to engage with the case.

A fan motor includes a rotating shaft on which an impeller is mounted, a motor unit for driving the rotating shaft, a plurality of bearings supporting the rotating shaft, a spring serially disposed between the plurality of bearings to axially apply force to an outer ring of one of the plurality of bearings, and a cylinder brought into contact with the spring to transfer elastic pressing force of the spring to the outer ring of the bearing. Accordingly, by applying a preload to the outer ring of the bearing, a ball of the bearing can be restricted from moving axially and radially between the outer ring and an inner ring of the bearing. The spring has a structure that is surface-contactable and has a length shorter than a diameter, and does not require a separate cartridge such as a sleeve for fixing the spring.