A variable inlet guide vane apparatus for imparting a motion to a fluid flow entering into a compressor. The variable inlet guide vane apparatus includes a housing defining a fluid flow passageway. The housing includes a first and second housing portion, a ring gear, and a plurality of guide vanes. The guide vanes include a stem, a gear, and a vane. The stem is disposed between the first and second housing portions, the vane is arranged within the fluid flow passageway, and the gears are arranged exterior the housing.

Various systems are provided for an axially split turbocharger case housing each of a turbine of a turbocharger, a compressor of the turbocharger, and a bearing of the turbocharger. In one example, an apparatus for an engine includes a first monolithic component and a second monolithic component that, when coupled together, form a turbocharger case configured to house each of a turbine, a compressor, and a bearing, the first and second monolithic components, when coupled together, also forming a compressor shroud and a turbine shroud. In further examples of the system, portions of the turbocharger case are formed of a lattice structure.

The present invention provides a silencer, including: a silencer housing having an annular plate-like structure, with an annular mounting chamber formed therein; a silencing pad disposed in the mounting chamber; and a positioning portion disposed on the silencer housing and used for fastening the silencer housing. The silencer according to the embodiment of the present invention has an integrated structure, and can desirably avoid the problem of mounting unflatness in a separated structure. Moreover, the silencing pad therein is disposed to surround the entire silencer, which can provide a sound absorption and noise reduction effect more efficiently.

A bearing device, a compressor and a method, in which a first radial bearing element is measured in at least the radial direction, an axial distance of the first axial bearing element from the first radial bearing element being measured, the second radial bearing element being measured in at least the radial direction, the first radial bearing element being positioned with respect to the second radial bearing element as a function of the predefined first width of the radial gap, the adjustment arrangement being situated in such a way that the axial gap has the predefined second width.

A rotary machine includes a first flange in which a first hole portion is formed, a second flange disposed to face the first flange via an abutting surface and having a second hole portion formed therein, and a stud bolt inserted into a first hole portion and a second hole portion and fastened to a female screw of the second hole portion, wherein the thickness of the second flange is larger than the thickness of the first flange.

An information handling system, may include a processor, a memory, and a power source; and a blower fan system including: a cylindrical bearing including a cylindrical hollow receiving portion extending from a top of the cylindrical bearing to the bottom of the cylindrical bearing; a cylindrical main shaft rotatably coupled in the cylindrical hollow receiving portion of the cylindrical bearing including a shaft pass-through hollow portion extending from a top of the cylindrical main shaft to the bottom of the cylindrical main shaft to form a pass-through hole; a set of fan blades mechanically coupled to the cylindrical main shaft having a set of magnets; an electromagnet to drive rotation of the set of fan blades; and a fan support rod passing through the cylindrical bearing and cylindrical main shaft at the shaft pass-through hollow portion and mechanically supporting the fan within a base chassis of the information handling system.

Systems and methods to clamp an impeller on a shaft in a centrifugal compressor. The embodiments as disclosed herein may include clamping individual impeller independently to the shaft, which may reduce the tolerance stack-up effect of a plurality of impellers. The impeller can be clamped to the shaft by positioning, for example, a relatively stiff support (e.g. a shaft locknut) on a front side of the impeller. The impeller can also be clamped to the shaft by a relatively flexible support to compensate for e.g. thermal expansion/contraction of the impeller. The embodiments as disclosed herein are particularly suitable for a multi-stage impeller.

The present disclosure relates to a bearing supporting assembly and a machining method thereof, and a centrifugal compressor. The bearing supporting assembly includes: bearing supports, provided with through holes for mounting radial bearings; and a fixing plate, detachably mounted at one end of each of the bearing supports along an axial direction, sides, away from the bearing supports, of the fixing plates being configured to mount first thrust bearings.

The present disclosure relates to a centrifugal compressor and air conditioning equipment. The centrifugal compressor includes: a main shaft; a diffuser, provided with a first thrust bearing at one end away from a diffusion surface; a supporting assembly, provided with a second thrust bearing at one end facing towards the diffuser; and a thrust disk, configured to rotate together with the main shaft, located between the diffuser and the supporting assembly along an axial direction and provided with a thrust portion, a clearance between one side of the thrust portion and the first thrust bearing and a clearance between the other side of the thrust portion and the second thrust bearing being limited through mutual abutting of the diffuser and the supporting assembly.

A flush-mounted, in-ceiling exhaust fan grille for attachment to an exhaust fan housing includes a planar integration flange forming a perimeter of the grille. The integration flange includes a plurality of through holes along the perimeter. An insert may be configured for insertion within the perimeter of the integration flange. A light module may be configured to join within a central portion of the insert while maintaining an opening between an entirety of the light module and the insert. At least one spring may be attached to the insert on a first end and attached to the fan housing on a second end, wherein the at least one spring applies a force drawing the insert towards the fan housing. An exhaust fan may be provided to draw air into the fan housing through the opening between the light module and the insert to be exhausted for proper ventilation.