Abstract: A fan member particularly for use in a vehicle cooling system. A formed metal hub member with a plurality of plastic polymer blade members. The blade members are overmolded on the hub member, preferably individually. The plastic polymer material is molded through openings in the hub member to help securely hold the blade members in place.

Abstract: A method for starting-up a wind turbine having a rotor with at least one rotor blade is provided. The method includes rotating the at least one rotor blade towards a main operating position using a pitch drive system including a pitch bearing supporting the at least one rotor blade, and a pitch-driving pinion meshing with the pitch bearing; and activating a pump to feed a lubricant to a lubrication pinion meshing with one of the pitch bearing and the pitch-driving pinion before the at least one rotor blade reaches the main operating position so that the lubricant is mainly transferred to a load portion of the pitch bearing and/or a load portion of the pitch-driving pinion. Further, a control assembly for use with the wind turbine is provided.

Abstract: A liquid lifting device includes: a liquid supply section storing liquid, a tank provided at a position higher than the liquid supply section; a liquid lifting pipe of which one end is inserted into the liquid in the liquid supply section and the other end is connected to the tank; an air pump configured to depressurize the interior of the tank; an air supply pipe in which one end portion of the air supply pipe is connected to the liquid lifting pipe via a branching section at a position halfway in the liquid lifting pipe, and an upright section is provided in the other end portion of the air supply pipe while standing upright from the one end portion; and an air valve provided in the other end portion of the air supply pipe and capable of being opened/closed with respect to the outside air.

Abstract: The invention is a hydraulic fluid pump of a vehicle brake system, which has a delivery device for delivering hydraulic fluid against a hydraulic counter-pressure prevailing in a section of the vehicle brake system. The hydraulic fluid pump further has a mechanism for modifying the volume delivered by the delivery device in accordance with the level of the hydraulic counter-pressure.

Abstract: A dual-cavity pump having a pump body with a substantially elliptical shape including a cylindrical wall closed at each end by end plates is disclosed. The pump further comprises a pair of disc-shaped interior plates supported within the pump by a ring-shaped isolator affixed to the cylindrical wall of the pump body. The internal surfaces of the cylindrical wall, one of the end plates, one of the interior plates, and the ring-shaped isolator form a first cavity within the pump. The internal surfaces of the cylindrical wall, the other end plate, the other interior plate, and the ring-shaped isolator form a second cavity within the pump. The interior plates together form an actuator that is operatively associated with the central portion of the interior plates. The illustrative embodiments of the dual-cavity pump have three valves including one located within a common end wall between the cavities of the pump. Methods for fabricating the pump are also disclosed.

Abstract: In an inverter-integrated electric compressor (1) provided with an inverter accommodating section (9) on the periphery of a housing (2) and an inverter (20) provided therein, the inverter accommodating section (9) is divided into a first accommodating section (9) accommodating an inverter module (21) equipped with a power system board on which semiconductor switching devices etc. are mounted and a CPU board on which a control and communication circuit etc. are mounted, and a second accommodating section (40) accommodating high-voltage-system components (30), such as a common-mode coil (35), a normal-mode coil (36), and a smoothing capacitor (37), provided on a high-voltage line (34) for supplying DC power from a high-voltage power supply to the inverter module (21), the accommodating sections (9) and (40) being separately provided on the periphery of the housing (2).

Abstract: A turbine engine compressor including a casing having its inside wall defining an aerodynamic reference surface for a gas-passing passage and in which a rotor wheel having radial blades is mounted. A circumferential trench is formed in the inside wall of the casing. Its shape is defined from upstream to downstream by three surfaces, respectively an upstream surface, a middle surface, and a downstream surface, which surfaces are substantially conical. The upstream surface extends upstream from the leading edges of the blades. The middle surface is substantially parallel to the aerodynamic reference surface. The downstream surface extends downstream at least as far as the trailing edges of the blades. The junction between the middle and downstream surfaces is in a range of 30% to 80% or 50% to 65% of the axial length of the blades starting from their leading edges.

Abstract: A beverage system includes a pump that draws a set amount of a flavored concentrate into a mixing chamber for mixing with water to form a beverage. A pump head includes a piston opening that receives a piston and a water port that defines a water flow path. The pump head includes protrusions. An adapter plate includes a piston opening that receives the piston and a water opening that receives the water port of the pump head. The adapter plate includes depressions. When the adapter plate is installed in the pump, the piston opening of the adapter plate and the piston opening of the pump head align, and the water port of the pump head is received in the water opening of the adapter plate. The protrusions of the pump heads are received in the depressions of the adapter plate, aligning the pump head and the adapter plate.

Abstract: A hydrostatic machine includes a housing and a drive shaft. The housing has an inner housing part, configured to receive a force flow, an outer housing part, configured to seal and damp, and a housing floor. The drive shaft is configured, on an input side, to pass coaxially through the housing floor and is configured, on an output side, to pass coaxially through a swash plate. The drive shaft is connected to a cylinder drum in a rotationally fixed manner. The hydrostatic machine is configured in a weight-saving manner and is configured such that propagation of vibrations in the hydrostatic machine, and noise generation therefrom, are reduced. To this end, the drive shaft is further configured to pass only partially through the inner housing part and is rotatably mounted in the housing floor and the inner housing part.

Abstract: The present invention provides a refrigerant compressor which may assure excellent reliability while using low-viscosity refrigerant. The refrigerant compressor is characterized in that the viscosity of oil stored in hermetic container ranges from VG3 to VG8, and the boiling component at 350° C. or over is not less than 10% and not higher than 30% in volume ratio, and the boiling component at 300° C. or less is not less than 50% and not higher than 70% in volume ratio. Accordingly, the input reduction at sliding surfaces can be realized, and the lubricant is evaporated, therefore it is possible to prevent defective compression caused by PET (polyethylene phthalate) or the like deposited on the surfaces of the discharge reed and the like, and to enhance the efficiency and reliability.

Abstract: A method and system for re-indexing a pitch bearing of a wind turbine includes: installing a plurality of first mounts to the fixed outer race of the pitch bearing; positioning the rotor blade to a downwardly-oriented; installing a hydraulic system; pressurizing the hydraulic system so as to support the weight of the rotor blade with the hydraulic system; detaching the rotor blade from the pitch bearing; lowering the rotor blade a predetermined vertical distance from the hub; installing a plurality of second mounts to the rotor blade; attaching a plurality of supports between the first mounts and the second mounts; transferring the weight of the rotor blade from the hydraulic system to the plurality of supports; disengaging the hydraulic system; and re-indexing the pitch bearing so as to engage a new set of pitch bearing teeth.

Abstract: A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.

Abstract: An aerodynamic blade attachment (1) for a bearingless rotor, particularly a main rotor, of a helicopter, comprising: an airfoil blade (2) having a tip end and a root end and having a pitch axis from said tip end to said root end; a flexbeam (3); a control cuff (4, 22) enclosing and extending along said flexbeam (3) and a separable junction arrangement between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Said junction arrangement is mechanical between said flexbeam (3), said control cuff (4) and said root end of said airfoil blade (2). Removable fasteners (5, 6) connect said root end of said airfoil blade (2) and said control cuff (4) with said flexbeam (3). Said junction arrangement comprises fairing means (10, 27, 28, 31, 32 and 39) encompass the removable fasteners (5, 6) and said flexbeam (3).

Abstract: A drilling fluid pumping system including a pump apparatus with a pumping chamber having an inlet valve and an outlet valve and a dampener system in fluid communication with the pumping chamber for damping the flow of fluid, e.g. drilling fluid, This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C. F. R. 1.72(b).

Abstract: A roller assembly comprises a central section with a hub, the central section having a plurality of pivots located around the central section; a plurality of arms, each arm having a roller end and a pivot end, the pivot ends coupled to the central section at the plurality of pivots such that each arm is capable of pivoting independently with respect to the central section, the roller ends and pivot ends of each arm located a distance of at least one roller width away from each other; a plurality of rollers, one roller coupled to each of the roller ends of the plurality of arms; wherein the plurality of rollers and arms are located around the central section such that the pivot is located a distance away from the roller.

Abstract: The present invention relates to a compressor or pump unit for the production or flow of compressed fluid and more particularly to a new uniquely designed compressor which has the capabilities to both draw fluid from an intake opening and direct dischargeable compressed fluid to a storage tank utilizing a single compressor chamber simultaneously.

Abstract: An air pump includes an air pump body for pumping air, and a high pressure gauge and a low pressure gauge mounted in the air pump body for measuring and indicating the air pumped by the air pump body.

Abstract: A vacuum pump comprises a molecular drag pumping mechanism and a regenerative pumping mechanism. A rotor element of the molecular drag pumping mechanism surrounds rotor elements of the regenerative pumping mechanism.

Abstract: A fan module includes a casing, a fan, and two vibration absorption assemblies. The casing has an accommodating space. The fan is located in the accommodating space and keeps a distance from the casing. Each of the two vibration absorption assemblies includes two first vibration absorption components and a second vibration absorption component. The two first vibration absorption components are respectively in contact with the fan and separated from the casing, respectively. The second vibration absorption component is connected with two first vibration absorption components and the casing, respectively. The first vibration absorption components and the second vibration absorption components are adapted for absorbing the vibration waves having different frequency ranges.

Abstract: An oil pump includes first and second control chambers, a biasing mechanism, and a changeover mechanism. The changeover mechanism connects the first control chamber with a drain portion when a valving element is in a first position, introduces a discharge pressure into the first and second control chambers when the valving element reaches a second position, and drains oil of the second control chamber to the drain portion and introduces the discharge pressure into the first control chamber when the valving element reaches a third position. The changeover mechanism changes from the first position to the second position, when the discharge pressure becomes higher than a pressure level at which the cam ring can move against a set load of the biasing mechanism, and is lower than a pressure level at which a biasing force of the biasing mechanism is increased in a stepwise manner.