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WO/2015/197396A1 |
A vacuum pump system for evacuating a chamber, in particular a lock chamber or process chamber, comprises a main vacuum pump (12) preferably designed as a screw pump. An inlet (30) of the main vacuum pump (12) is connected to the chamber...
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WO/2015/193974A1 |
A two-stage screw compressor is provided with a low-stage compression mechanism that compresses a fluid, a high-stage compression mechanism that further compresses the fluid compressed by the low-stage compression mechanism, and a screw ...
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WO/2015/193318A1 |
The invention relates to a fluid ring compressor comprising: a first single-acting compression stage (17) having a first impeller (23) eccentrically mounted in a housing (14); and a second single-acting compression stage (18) having a se...
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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/2015/172660A1 |
A pump body structure of a rolling rotor type compressor comprises a crankshaft (10); a first air cylinder (20) sleeved on the crankshaft (10), the first air cylinder (20) comprising a first cylinder body (21), a first roller (22) arrang...
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WO/2015/165544A1 |
The present invention relates to a method of pumping in a pumping system (SP, SPP) comprising: a primary lubricated vane screw vacuum pump (3) with a gas inlet opening (2) linked to a vacuum chamber (1) and a gas outlet opening (4) that ...
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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/2015/154717A1 |
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/2015/154726A1 |
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/2015/157434A1 |
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/2015/131313A1 |
A refrigerating circulation device and two-stage rotary compressor (100) thereof; the two-stage rotary compressor (100) comprises an air jetting tube (1), a casing (2), two air cylinders, a piston and a sliding piece; a liquid accumulato...
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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 of ...
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WO/2015/117281A1 |
A volume control-type rotary compressor and a refrigeration circulation apparatus having same. A compressing mechanism (5) of the volume control-type rotary compressor comprises: a first cylinder (10a) and a second cylinder (10b) that ar...
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WO/2015/114883A1 |
This hermetic compressor (1) has a suction hole (23) provided in a cylinder (21), wherein the suction hole (23) has multiple sections that have different diameters and are arranged from the outer peripheral side toward the inner peripher...
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WO/2015/098467A1 |
An orbiting scroll (3) comprises spiral-shaped orbiting wraps (5) provided on both sides of a base plate section (12). A housing (2) is provided with a receiving hole (6) in which the orbiting wraps (5) are received so that the orbiting ...
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WO/2015/096539A1 |
An air-conditioning system comprises a double-cylinder capacity-variable compressor (30) with an upper cylinder air suction port, a lower cylinder air suction port and an exhaust port. The air-conditioning system further comprises a firs...
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WO/2015/092571A1 |
This scroll compressor includes a closed container, a scroll compression unit (3) including a first fixed scroll (4) having a first fixed base plate (8) and a first fixed spiral wrap partially delimiting a first refrigerant inlet passage...
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WO/2015/091683A1 |
The invention relates to a sealed compressor (10) comprising a motor pump unit, a hermetic casing (11) and means of electrical connection (12), the motor pump unit being positioned inside the hermetic casing (11), the connection means (1...
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WO/2015/087908A1 |
[Problem] To provide a scroll-type fluid machine capable of applying appropriate back pressure to a movable scroll even when the temperature of a working fluid at an inlet of an expansion part has changed. [Solution] A scroll-type fluid ...
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WO/2015/082462A1 |
An electric machine (1), in particular a pump, comprises a first housing part (10) and a second housing part (11). At least one clamp (20), in particular two, three or four clamps (20) are distributed along the periphery of the electric ...
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WO/2015/067810A1 |
In a separating wall (16), which separates a vacuum region (18) from a region (20) under atmospheric pressure, pins (24) are provided as a current lead-through. The pins (24) are cast in, for example, glass (26). According to the inventi...
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WO/2015/062307A1 |
An expansion compressor apparatus and an air conditioner having same, where the expansion compressor apparatus comprises: an expansion cylinder (10), a compression cylinder (20), and a connecting shaft (30) connecting the expansion cylin...
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WO/2015/045678A1 |
Provided is a rotary compressor that: removes limitations such as restrictions on intake pipe diameter, seal limits on a separator plate, and assembly limits on a rotating shaft; makes possible a limit design exceeding that of the presen...
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WO/2015/033586A1 |
This rotary compressor is equipped with: an upright sealed compressor case that has a refrigerant discharge section at the top and refrigerant intake sections at a lower part and accumulates a lubrication oil therein; and oil supply mech...
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WO/2015/025449A1 |
Provided is a multi-stage compressor that can supply a gaseous refrigerant at an intermediate pressure compressed by a low-stage compression element to a high-stage compression element without using a pipe, and can reduce suction loss wh...
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WO/2015/020273A1 |
Disclosed is a compression system. The present invention comprises: a compressor for receiving a first fluid from the outside to compress the received first fluid; a motor for receiving a current from the outside to drive the compressor;...
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WO/2015/001059A1 |
The present invention relates to a dry low vacuum pump comprising a valve element with through-passage (10; 15) arranged in the delivery port (9), said valve element with through-passage (10) being able to move between a closed position ...
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WO/2014/192852A1 |
Provided is a rotary pump which achieves improved reliability and improved operation efficiency by preventing an exhaust gas from flowing backward into a pump as much as possible, preventing the interior of the pump from being excessivel...
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WO/2014/192851A1 |
Provided is a two-shaft rotary pump which achieves improved reliability and improved operation efficiency by preventing an exhaust gas from flowing backward into a pump as much as possible, preventing the interior of the pump from being ...
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WO/2014/189093A1 |
A heat pump device (200) which is provided with a two-cylinder compressor (100) comprising an electric motor (8) and two compression parts (10, 20) to be driven by the electric motor (8), and has a structure in which an operation mode is...
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WO/2014/173692A1 |
A vacuum-pump system has a first vacuum pump (10), which is not sensitive to particles. A second vacuum pump (12), which is connected to the first vacuum pump (10), is sensitive to particles. The connecting element (14) between the two v...
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WO/2014/175429A1 |
A multi-cylinder rotary compressor (100) is provided with a plurality of compression mechanism units (a first compression mechanism unit (10) and a second compression mechanism unit (20)). The compressor is provided with a holding mechan...
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WO/2014/156842A1 |
A positive displacement pump is provided with: a rotating shaft; an eccentric drive member which is eccentrically mounted on the rotating shaft and which moves along a circular ring path as the rotating shaft rotates, the circular ring p...
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WO/2014/154046A1 |
A compressor system (10A) comprises a first compressor (100) and a second compressor (200) connected in parallel to each other, a lubricant balance pipeline (500) disposed between the first compressor and the second compressor, a lubrica...
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WO/2014/155803A1 |
The compressor mechanism unit of this rotary compressor is provided with a cylinder having a cylinder chamber, a roller housed inside of the cylinder chamber, a first and second vane which abut against the roller to partition the inside ...
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WO/2014/155938A1 |
Provided are: a multiple-cylinder rotary compressor which is configured so that the deflection of a rotating shaft is reduced and so that a mechanism for supporting the rotating shaft is simplified; and a refrigeration cycle device. A mu...
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WO/2014/156679A1 |
In this multi-cylinder rotary compressor, a motor, and a compression mechanism driven by the motor are provided inside a sealed container. The compression mechanism is formed from rotary compression mechanisms (6A, 6B) provided with: a p...
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WO/2014/155802A1 |
This multiple cylinder rotary compressor is provided with: first and second cylinders; first and second rollers which eccentrically rotate in the first and second cylinder chambers; a first blade for partitioning the interior of the firs...
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WO/2014/151461A1 |
A volumetric assembly includes: a roots-type supercharger device; a roots-type expander device; a first duct extending from the supercharger fluid inlet, the first duct supplying fluid to the roots-type supercharger device; and a second ...
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WO/2014/141331A1 |
A rotary compressor is provided with: an upper bearing (29A) and a lower bearing (29B), which are provided so as to sandwich a rotary compression mechanism; a main shaft (23) which is rotatably supported by both the upper bearing (29A) a...
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WO/2014/134336A1 |
A method of operating a refrigeration system, that includes providing a plurality of compressors connected in parallel. The plurality of compressors includes a plurality of scroll compressors. The method further includes returning circul...
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WO/2013/140912A9 |
4.6×10-3≤dm/A≤6.5×10-3 (formula 1) and/or 4.6×10-3≤ds/A≤6.5×10-3 (formula 2) are true, where A is an inner diameter area of a cylinder chamber (20a, 20b), dm is the inner diameter of a discharge port (22a) on a main bearing (...
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WO/2014/092065A1 |
[Problem] To provide a scroll-type fluid machine which reduces the impact on power recovery efficiency of clearance in an expansion section. [Solution] A scroll-type fluid machine (100) equipped with: a scroll unit (20) for positioning a...
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WO/2014/072276A1 |
A vacuum pump system for evacuating a chamber (10) has a main pump system (12, 14) which is connected to the chamber (10). An auxiliary pump system (20) is connected to the main pump system (12, 14), wherein the auxiliary pump system (20...
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WO/2014/070538A1 |
A semi-hermetic compressor for ammonia service includes a compressor portion and a motor encased in an airtight housing portion. The compressor portion compresses ammonia. The motor includes a stator winding. Motor leads are connected to...
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WO/2014/064974A1 |
This rotary compressor is provided with a rotation stopping mechanism (35) having a projection (36) which is disposed on the outer peripheral surface of a piston (13) and an insertion hole (37) which is disposed on the cylindrical inner ...
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WO/2014/054458A1 |
A screw compressor (1) that uses a lubricating oil comprises a screw rotor (9, 10) for compressing a gas, a rotor chamber (8) for accommodating the screw rotor (9, 10), a bearing space (30, 31) for accommodating bearings (20, 22) that su...
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WO/2014/044440A2 |
The invention relates to a pump arrangement comprising a multi-part housing (1), in which a vane pump (2) is accommodated. Said vane pump (2) comprises a rotor (4) which is rotationally fixed to the drive shaft (3), an eccentric ring (5)...
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WO/2014/030397A1 |
[Problem] To configure an electric compressor so that, even if force with which a housing holds a stator decreases at high temperatures, the movement of the stator is restricted, preventing the breakage of an electrical part such as a co...
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WO/2014/025025A1 |
This rotary compressor accommodates an electric motor and a compression mechanism that is linked to the electric motor via a rotary shaft in a sealed case. The compression mechanism is provided with: a cylinder having a cylinder chamber;...
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