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WO/2015/190219A1 |
A negative pressure pump is provided with a resinous housing main body formed into a bottomed cylinder shape having an opening in one end and including a bottom surface and inner peripheral surface that section off a pump chamber on t...
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WO/2015/190551A1 |
Heat of refrigerant in a muffler space is transmitted to refrigerant in an intake hole of a cylinder, and the compression efficiency of a compressor significantly decreases. This compressor (1) is provided with a rear cylinder (14) in...
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WO/2015/190195A1 |
An attitude control means (contact section)(6f) is provided between a side surface of the eccentric shaft section (6a) of a rotating shaft (6), the side surface facing the direction of the eccentricity, and an inner wall surface of a sli...
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WO/2015/186641A1 |
This scroll compressor is a scroll compressor (1) provided with a housing (2) and a scroll compressor groove (3) provided inside the housing, the interior of the housing (2) being provided with an expelling cavity (25) for expelling high...
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WO/2015/185622A1 |
The invention relates to rotary screw compressors without operating fluid in the working space, having a 2-lobed rotary screw (2) and a 3-lobed rotary screw (3) in an enclosing compressor housing (8), wherein the axes of rotation of the ...
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WO/2015/187816A1 |
A compressor may include a scroll member, a hub, a discharge valve and a bypass valve. An end plate of the scroll member includes a recess, a discharge passage in communication with the recess, and a bypass passage in communication with ...
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WO/2015/187553A1 |
A compressor (22) comprises a housing (50) having a first port (26) and a second port (28). A male rotor (52) has a working portion (64) having a plurality of lobes (110) of a count (NM) and at least a first shaft portion (62) protruding...
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WO/2015/185624A1 |
The invention relates to a spindle compressors without operating fluid in the working chamber, comprising a 2-tooth spindle rotor (2) and a 3-tooth spindle rotor (3) in a surrounding compressor housing (8) and having preferably non-paral...
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WO/2015/185177A1 |
The invention relates to a vacuum pump (1) suitable for mounting to an engine, comprising a casing (2) having a cavity (4), and a moveable member (14) arranged for rotation inside the cavity (4), wherein the cavity (4) is provided with a...
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WO/2015/184371A1 |
The present teachings generally include a rotor assembly having a plurality of rotor sheets or layers mounted to a shaft, and methods of construction for a rotor assembly. Each rotor sheet or layer in the assembly may be provided with a ...
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WO/2015/182214A1 |
A compressor is provided with a bypass device (30) which is affixed positioned over a discharge hole (5b) in a main shaft (5) and which regulates the amount of oil discharged from the discharge hole. This bypass device has: a housing (31...
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WO/2015/176710A1 |
A compressor system for producing a compressed gas, more particularly air, comprising at least one main compressor (30) which is supplied with pre-compressed gas with the aid of a pre-compressor (20), wherein the at least one main compre...
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WO/2015/176541A1 |
A shaft-in-shaft centering rotor pump provided with sliding plates comprises a case, a rotor (4), a crankshaft (8), sliding plates (5) and blades (6). Due to the limitation of the crankshaft (8), the sliding plates (5) are prevented from...
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WO/2015/177851A1 |
A thrust plate has an oil supply hole which is formed leading to a compression chamber from a surface of the thrust plate, the surface sliding on an orbiting scroll. The orbiting scroll has an oil supply groove provided with: an oil inle...
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WO/2015/172593A1 |
A medium-frequency hermetically sealed refrigerant compressor having activation and unloading functions, comprising: an electric connector (2), a front end socket (1), a rear end socket (6), a barrel (7), a medium-frequency motor (3) dis...
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WO/2015/174032A1 |
The present invention provides a compressor that uses, as a working fluid, a refrigerant including R1123 (1,1,2-trifluoroethylene), and uses a polyol ester oil as a lubricating oil for the compressor. The compressor is provided with a fi...
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WO/2015/174033A1 |
The present invention provides a compressor that uses, as a working fluid, a refrigerant including R1123 (1,1,2-trifluoroethylene), and uses a polyvinyl ether oil as a lubricating oil for the compressor. The compressor is provided with a...
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WO/2015/172895A1 |
The scroll compressor (1) includes an orbiting scroll arrangement (7), and a drive shaft (18) configured to drive the orbiting scroll arrangement (7) in an orbital movement, the drive shaft (18) including a lubrication channel (32) and a...
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WO/2015/168101A1 |
The present invention relates to a screw compressor having an oil separator, comprising: a compressor housing with an inlet for a refrigerant gas flow to flow in; an oil separator housing connected to the compressor housing in a fastened...
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WO/2015/165359A1 |
A method for manufacturing a sliding blade of a compressor comprises selecting a proper base material of the sliding blade of the compressor and performing cutting, thermal treatment, deburring, nitrification, fine grinding and milling o...
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WO/2015/166578A1 |
Provided is a scroll compressor (1) wherein volutes of a fixed scroll and an orbiting scroll each have such an involute form that an outward surface with φ>φos0 and an inward surface with φ>φis0 have a tooth thickness t0 and a base c...
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WO/2015/162869A1 |
A scroll compressor in which a fixed scroll (30), a revolving scroll (40), a rotation-suppressing member (90), and a main bearing (60) are arranged in a low-pressure space (12), and the fixed scroll (30) and the revolving scroll (40) are...
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WO/2015/162296A2 |
The invention relates to a rotor pair for a compressor block of a screw machine, wherein the rotor pair comprises a secondary rotor (NR) that rotates about a first axis (C1) and a main rotor (HR) that rotates about a second axis (C2), wh...
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WO/2015/161678A1 |
Disclosed is a volumetric fluid mechanism, comprising an eccentric shaft (1) and a working medium moving member (2), wherein the eccentric shaft (1) comprises a driving shaft (3) and a deflection non-sheathed body (4) provided on a rotar...
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WO/2015/163661A1 |
According to an embodiment of the present invention, an intake device comprises: an annular fluid channel formed inside a circular housing; an introduction part installed on one side of the housing to guide fluid to be introduced to the ...
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WO/2015/163257A1 |
This rotary compressor comprises a switching mechanism for switching between: a compression operation state in which the front end part of one vane is pressed against the outer peripheral surface of a piston; and a non-compression operat...
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WO/2015/159715A1 |
A pump comprises a resin-metal composite (20) formed by joining a metal member (24) and a resin member (22) which is formed using a thermosetting resin composition. The pump is provided with a housing (10) having an inner wall surface (1...
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WO/2015/159459A1 |
In order to reduce the pressure loss of compressed gas flowing in a discharge chamber and to reduce vibration and noise by facilitating the damping of the pulsation of gas discharged into the discharge chamber, a screw compressor compris...
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WO/2015/155802A1 |
A high-reliability scroll compressor is provided which has a thrust structure that uses cast iron for the orbiting scroll and comprises a steel thrust plate arranged on the back surface of the orbiting scroll, and which prevents friction...
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WO/2015/154717A1 |
Provided is a compressor, wherein a low-pressure stage cylinder (8), a first high-pressure stage cylinder (3) and a second high-pressure stage cylinder (6) are arranged in a stacked manner, a baffle is arranged between two adjacent cylin...
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WO/2015/155798A1 |
There is demand for a scroll compressor that prevents an excessive amount of oil from being supplied during high-speed operation, enables a sufficient amount of oil to be supplied during low-speed operation, and does not cause fluctuatio...
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WO/2015/154726A1 |
A compressor comprising a first primary cylinder (1), a second primary cylinder (2), and a secondary cylinder (3), all being stacked one on the other, and two neighboring cylinders being provided with a separator therebetween; the first ...
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WO/2015/154284A1 |
Disclosed is a compressor (100) and a refrigerating system having the compressor (100). The compressor (100) is arranged horizontally and comprises: a housing (1); a compression mechanism (2), wherein the compression mechanism (2) is pro...
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WO/2015/157434A1 |
Rotary systems are described, which can include at least one of compressors and vacuum pumps. Each rotary system includes a corresponding piston that rotates in an orbital motion around a respective eccentric of a shaft in order to eithe...
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WO/2015/152833A1 |
A revolving vane compressor and a method of operating a revolving vane compressor are disclosed. The compressor includes a tubular sleeve having a first rotational axis; a rotor disposed within the sleeve, the rotor having a second rotat...
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WO/2015/154036A1 |
Methods and systems to mount a shaft with a motor rotor are provided. The motor may include a plurality of permanent magnets embedded in a lamination stack of a rotor of the motor, which may run through the length of the lamination stack...
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WO/2015/147744A1 |
A vane-slot mechanism for a rotary vane machine having a rotor configured to relatively rotate within a cylinder, the vane-slot mechanism comprising: a slot provided on one of: the rotor and the cylinder; a vane provided on the other of:...
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WO/2015/144254A1 |
A pumping system and method comprising: a dry primary screw vacuum pump (3) having a gas inlet orifice (2) connected to a vacuum chamber (1) and a gas outlet orifice (4) that opens into a duct (5) before leading into the gas outlet (8) o...
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WO/2015/146740A1 |
Provided is an internal gear pump in which the fluid discharge flow rate during the high speed rotation of a drive shaft is suppressed. The internal gear pump (1) is equipped with a trochoid (4) in which an inner rotor (3) having a plura...
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WO/2015/140869A1 |
A scroll compressor which has, inside an airtight container (20), a motor unit (8, 9), a compression mechanism unit (1, 2, 3) connected to the motor unit (8, 9), and a lubrication oil reservoir (19), and compresses a refrigerant using th...
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WO/2015/138557A1 |
A rotor assembly having a plurality of rotor plates mounted to a shaft, and methods of construction for a rotor assembly are disclosed. Each rotor plate in the assembly may be provided with a central opening extending between the first a...
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WO/2015/136803A1 |
Provided is an oil-free screw compressor having a shaft sealing device with good assembly properties and enabling the leakage of compressed gas from the shaft sealing device to be reduced. In the oil-free screw compressor (1): a pair of ...
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WO/2015/137028A1 |
A screw compressor is provided with: compressor bodies (11A, 11B); a motor (12) provided at a side of the compressor bodies (11A, 11B); a gear box (13) connected to the compressor bodies (11A, 11B) and transmitting the driving force of t...
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WO/2015/133571A1 |
A bearing (11) has a substrate (110) and a coating layer (111). A crank shaft (13) is housed on an inner peripheral side of the substrate (110). The inner peripheral surface of the substrate (110) is coated by the coating layer (111). Th...
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WO/2015/131633A1 |
A rolling rotor type compression mechanism (10)comprises an eccentric shaft (20); an air cylinder (40); a rotor (30), the rotor (30) being driven by the eccentric shaft (20) to make rotating movement in the air cylinder (40); and a slidi...
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WO/2015/129406A1 |
A rotary compressor, wherein, when the vane width is denoted as W, the amount of eccentricity of an eccentric part as e, the radius of curvature in the vane tips as Rv, the annular piston radius as Rro, and the non-sliding area width ...
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WO/2015/129169A1 |
A compressor is provided with compression-chamber-forming members (11, 12) for forming a compression chamber (Vc) that reduces capacity while being displaced around a rotating shaft (25), and an intermediate pressure intake port (30b)...
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WO/2015/129961A1 |
Disclosed herein is a vane rotary compressor in which a fluid such as a refrigerant is compressed while a volume of a compression chamber is reduced during rotation of a rotor. There is provided a vane rotary compressor capable of preven...
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WO/2015/127513A1 |
There is provided a rotary vane motor for use with a pressurised flow of fluid. The rotary vane motor includes a chamber with an inlet and an outlet, a rotor rotatably held within the chamber and attached to a drive shaft, wherein the ro...
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WO/2015/128906A1 |
Provided are: an oil supply component for a screw exhaust pump, which makes it possible to realize a screw exhaust pump that can operate without maintenance over a long period of time and from a low-speed rotation range to a high-spee...
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