Abstract: A compressor assembly having a drive shaft supported by a main bearing and an outboard bearing located on opposite axial ends of a cylinder block. The main bearing has a bearing support formed therein in which first and second apertures are defined. The diameter of the first aperture is less than the diameter of the second aperture. The shaft extends through the first and second apertures with the diameter of the drive shaft having an outer diameter which is no greater than the diameter of the first aperture. A sleeve is mounted on the drive shaft and is at least partially disposed within the second aperture. A bearing is located in the second aperture and engages the sleeve and the main bearing to rotationally support the drive shaft. The sleeve can have a thickness which allows the bearing to be of a standard size rather than a custom size.

Abstract: A blower apparatus includes a blower housing having at least one airflow channel. A flexible sheet having at least one flap is coupled to the blower housing such that the flap overlaps the channel to form a one-way valve. A plurality of flaps may be positioned over a plurality of channels to form a blower apparatus with a plurality of one-way valves. The flexible sheet may include mounting features such as holes to facilitate assembly. For example, in one embodiment, the flexible sheet is pressed onto a plurality of pegs residing on the blower housing such that the holes receive the pegs. In another embodiment, the flexible sheet is pressed onto a plurality of pegs residing on an exhaust cover that is subsequently attached to the blower housing.

Abstract: The present invention relates to optimizing the configuration of rotary impact collectors and devices in which such rotary impact collectors are employed. Rotary impact collectors are formed out of base plate upon which a plurality of vanes are mounted. One aspect of the present invention is a combined impact collector and fan in which the ratio of vane height to impeller diameter is in the range of about 0.01 to about 0.2. Preferably, the vanes are evenly spaced around the impeller so as to present a balanced load to the motor. Other performance enhancing elements include the use of truncated vanes, configurations optimized for injection molding fabrication, controlling the orientation of the vanes to reduce the formation of vortex forces, and enhancements configured to increase the ability to collected particles rinsed off such impellers.

Abstract: A method for manufacturing a sliding part for a hermetic compressor is disclosed. Since the abrasion resistance and corrosion resistance of the sliding part is increased, the energy consumption efficiency is improved and the performance of the compressor can be enhanced. In addition, since the manufacturing process is shortened, the production cost can be reduced and the manufacturing time can be reduced. Moreover, since the thickness change of the sliding part is minimized, the defective rate of the part size can be reduced and its quality can be improved.

Abstract: A vane pump is provided with a side plate, a rotor in which a plurality of vanes capable of being in contact with a cam surface of a cam ring is provided so as to freely slide in a diametrical direction, and a vane guide in which the respective vanes at a time of stopping a rotation of the rotor are in contact with an outer peripheral surface so as to set positions in a diametrical direction of the respective vanes. The vane guide constituted by the plate member has a tapered protruding portion integrally formed with the vane guide according to a press working, the protruding portion is pressure inserted to a hole formed in the side plate, and the vane guide is fixed to the side plate.

Abstract: A blower apparatus includes a blower housing having at least one airflow channel. A flexible sheet having at least one flap is coupled to the blower housing such that the flap overlaps the channel to form a one-way valve. A plurality of flaps may be positioned over a plurality of channels to form a blower apparatus with a plurality of one-way valves. The flexible sheet may include mounting features such as holes to facilitate assembly. For example, in one embodiment, the flexible sheet is pressed onto a plurality of pegs residing on the blower housing such that the holes receive the pegs. In another embodiment, the flexible sheet is pressed onto a plurality of pegs residing on an exhaust cover that is subsequently attached to the blower housing.

Abstract: The invention relates to a ventilation device for an electrical machine including a rotor (42) provided externally with reliefs (46) delimiting between them cooling channels (46) in which a cooling fluid circulates and a stator.

Abstract: A vane damper, and a method for making the vane damper is disclosed. A casing including a space for at least one rotable vane divides the space into two parts. The spaces are variable because of the vane which rotates within the space. Further, a number of asymmetrical ducts connects the spaces separated by the vane with a gas accumulator space so that a medium within the spaces for damping motion of the vane can expand into the gas accumulator space against the force of a gas. The vane is produced by extruding aluminum or an aluminum containing alloy. The vane is sealed against the surfaces of the space as well as a bearing member supporting the vane.

Abstract: A fan assembly has a fan housing defining mounting apertures, a sheet metal mounting member for mounting the fan housing thereon, mounting tabs extending outwardly of the mounting member and received within the mounting apertures of the fan housing, and threaded fasteners received within the mounting apertures of the fan housing and engaging both the mounting tabs and the fan housing to secure the fan housing to the mounting member. Each mounting tab is formed by piercing the sheet metal mounting member with a forming tool, and moving the forming tool through the pierced mounting member to thereby move the pierced metal in the shape of the tab outwardly of the mounting member. The mounting tabs are received within the mounting apertures of the fan housing, and self-tapping fastener are inserted into the mounting apertures of the fan housing and engage both the fan housing and the mounting tabs to secure the fan housing to the mounting member.

Abstract: A rotary compressor comprises a cylinder having an inner space and a groove, a roller sliding along the inside of the inner space of the cylinder, a vane penetrating through the groove, and refrigerant. The groove penetrates through the outside and inner space of the cylinder. The vane slides on the roller, and the vane also slides in and out of the groove. The vane includes stainless steel formed by sintering of powder material, a nitrogen diffusion layer disposed on the surface of the stainless steel, and a compound layer of iron and nitrogen disposed on the surface of the nitrogen diffusion layer. The stainless steel has a plurality of fine pores formed by sintering of powder material. The plurality of fine pores have a porosity of 15% or less.

Abstract: A first sleeve and a second sleeve are put onto the shaft at a predetermined axial distance apart and are pressed radially. The shaft is encapsulated between the first and the second sleeve with a thermoplastic in such a way that a vane body, which has at least one aperture, is formed. The vane body is encapsulated with a sealing compound in such a way that a sealing lip is formed on the vane body at the margins.

Abstract: A cartridge-style pump [10] for a vehicle power steering system can be assembled, tested and shipped independently of an associated pump housing [37]. The pump [10] includes an upper plate [12], a cam plate [16] having a bore [20] formed therein for receipt of a rotor [18], and a lower plate [14]. A plurality of alignment pins [22] are pressed into the lower plate [14] with the cam plate [16] and the upper plate [12] placed onto the alignment pins [22] to locate the plates in their proper position. A plurality of retaining clips [32] are placed onto a respective alignment pin [22] to hold the pump [10] together.

Abstract: An oscillating piston type compressor has a piston formed integral with a blade. The compressor accommodates in a casing a compression mechanism section and a motor section, the mechanism including the piston having a plate-shaped blade integrally formed on a cylindrical portion is fitted onto an eccentric portion of a crankshaft to perform orbital motion relative to an inner peripheral surface of a cylinder, the plate-shaped blade being formed at its radial end surface with a recess or a protrusion, which serves as a reference of position.

Abstract: An integrated compressor disk and compressor blade (BLISK) having a specified shape is prepared by an electrochemical machining process having a cathode defined by a set of cathode shape parameters. A trial BLISK is prepared using a cathode defined by a set of trial shape parameters, and a set of deviations of the trial shape from the specified shape at a plurality of surface grid points on a surface of the trial article is measured. A set of revised cathode shape parameters is determined using at least one reshaping routine specific to the BLISK. A reshaped article is prepared using the electrochemical machining process and a reshaped cathode defined by the revised cathode shape parameters.

Abstract: A composite thermal barrier coating system includes a honeycomb metallic structure filled with high thermal expansion ceramic hollow spheres in a phosphate bonded matrix. The composite thermal barrier coating system may be manufactured to thicknesses in excess of current thermal barrier coating systems, thereby imparting greater thermal protection. Superior erosion resistance and abrasion properties are also achieved. The composite thermal barrier coating is useful on combustion turbine components such as ring seal segments, vane segment shrouds, transitions and combustors.

Abstract: A method of producing a vane damper comprising a body including a space for at least one rotatable vane that divides the space into two part spaces that are located on either side of the vane. The spaces are variable because of the rotatability of the vane. The vane is mounted in the body by a bearing member and operates in a working medium that is located in the space. The working medium is transferable between the variable spaces via a passage or at least one throttle function to produce damping. The method includes producing the vane with associated bearing member by extruding aluminum or aluminum-containing alloy. The extruded product is cut for production of the respective vane with associated bearing member. The vane is provided with sealing members for establishing a seal against surfaces of the space and of the bearing member.

Abstract: A hermetic rotary compressor assembly having a housing, a cylinder block and a bearing assembly within the housing. The cylinder block and the bearing assembly define a cylindrical cavity which has a roller piston disposed therein. The rotary compressor assembly includes a motor drivingly coupled to the roller piston and the cylinder block has a vane slot extending completely axially through and extending radially from an outside perimeter surface of the cylinder block to the cylindrical cavity. At least a portion of the vane slot is defined by a pair of substantially parallel sidewalls and a vane is disposed in and guided by the vane slot and is urged against said roller piston. The cylinder block is fixed in a state of circumferentially oriented stress.

Abstract: The vane 1 is substantially in a flat rectangular parallelepiped shape having (a) two wide side surfaces 1c, 1c′ opposing in the thickness direction and being slidable in each guide groove 12 of a rotor 11 of an actuator, (b) two narrow side surfaces 1d, 1d′ opposing in the width direction, (c) an as-cold-worked top surface 1a having an arcuately projecting cross section in a plane perpendicular to the width direction and being in slidable contact with a cam surface 14 of the actuator 13 for sealing, and (d) a bottom end surface 1e opposing the top surface 1a, both ends of said top surface 1a in the width direction being bulging toward the cam surface 14.