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WO/2012/104934A1 |
A scroll expander (1) has a liquid injection port (93) provided at a stationary scroll (61) which is a second stationary scroll, the liquid injection port (93) being capable of injecting a liquid refrigerant, which is supplied from the o...
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WO/2012/103925A1 |
The invention relates to a double internal gear wheel pump (1) comprising two internal gear wheel pumps (2, 2') embodied as hydraulic pumps of a hydraulic, slip-controlled vehicle braking system. According to the invention, a partition w...
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WO/2012/086779A1 |
In a multi-cylinder rotary compressor (M), a compression mechanism (3) interconnects a back-pressure introduction pathway (H) to a blade back chamber (11b) that movably houses the back end of a second blade (12b). A check valve mechanism...
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WO/2012/086637A1 |
In this multi-cylinder rotary compressor (M), a compression mechanism unit (3) is provided with a first cylinder (6A) and a second cylinder (6B) with an intermediate partition plate (2) interposed therebetween. A cylinder chamber (Sa, Sb...
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WO/2012/080611A1 |
The invention relates to a thermodynamic system, including a circuit for circulating a refrigerant which comprises, in particular: a compression device including first and second compressors (7, 8), each of which includes a sealed chambe...
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WO/2012/080610A2 |
The invention relates to a scroll refrigeration compressor including: a sealed casing; stationary (7) and moving (10) volutes comprising scrolls inserted into one another and defining variable-volume compression chambers (13); a delivery...
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WO/2012/072478A1 |
The present invention provides a system (1) for maintaining a high vacuum in a vacuum enclosure such as cryostat (2), for example. The system includes a high-vacuum pump (3) having an input (6) that is connected to the cryostat (2) and a...
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WO/2012/066781A1 |
Provided is a connection structure for a vacuum exhaust device which is a connection structure for a plurality of vacuum exhaust devices. The plurality of vacuum exhaust devices each has: a casing that forms at least one pump chamber; an...
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WO/2012/066782A1 |
Provided is a coupling structure for vacuum exhaust devices, where each vacuum exhaust device comprises a pump chamber and a casing that demarcates the pump chamber. The coupling structure comprises a first end surface formed on a first ...
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WO/2012/066780A1 |
Provided is a coupling structure for a vacuum exhaust device which is a coupling structure for a plurality of vacuum exhaust devices. The plurality of vacuum exhaust devices each has: a casing that forms at least one pump chamber; and an...
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WO/2012/062852A1 |
The present invention relates to a hermetic compressor (1) comprising a casing (2), a motor having a rotor (3) and a stator (4), a crankshaft (5) that is snap-fittingly mounted to the core of the rotor (3) in the direction of the rotatio...
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WO/2012/041472A1 |
The invention relates to a compressor comprising a first compartment (3) which houses an electric motor and is separated by a wall (8) from a second compartment (4) which houses a control device for the electric motor connected to the mo...
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WO/2012/041259A1 |
A variable capacity compressor assembly (20) configured for variable capacity modulation includes a housing (30), with a compressing mechanism (22) and a driving mechanism (24) disposed within the housing. The compressing mechanism inclu...
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WO/2012/042894A1 |
A rotary compressor (100) is provided with a compression mechanism (3), a motor (2), a suction path (14), a return path (16), a variable volume mechanism (30), an inverter (42), and a control unit (44). The return path (16) serves to ret...
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WO/2012/031450A1 |
A two-stage medium-pressure screw-type air compressor set comprises a first-stage screw compressor (21) and a second-stage screw compressor (22) which is communicated with a gas-liquid separator (6) via a gas-liquid tangential inlet tube...
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WO/2012/017727A1 |
A hermetically sealed compressor in which heat generation and insulation breakdown are hardly to occur at the connection portion between a lead wire of a motor and an external terminal is structured as follows. The compressor main body a...
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WO/2012/011206A1 |
Disclosed is a vane compressor (1A) in which cylinders (35, 36) concentrically formed at the side of a rotor (3) are eccentrically inserted in ring-shaped spaces (23, 24) between cylindrical parts (21, 22, 12) concentrically formed at th...
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WO/2012/004992A1 |
A rotary compressor (102) comprises a shaft (4), a cylinder (5), a piston (8), a first vane (32), a second vane (33), a first suction hole (19), and a second suction hole (20). The first vane (32) partitions the space between the cylinde...
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WO/2012/004993A1 |
A rotary compressor (102) is provided with a shaft (4), a cylinder (5), a piston (8), a first vane (32) and a second vane (33). The first vane (32) partitions the space between the cylinder (5) and the piston (8) along the circumferentia...
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WO/2011/157411A2 |
The invention relates to an electric compressor (1) comprising a compression mechanism (3) rotated by a drive device that extends through a main casing (5) defining an internal volume (6) in which an electric motor (2) is installed. The ...
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WO/2011/157409A2 |
The invention relates to an electric compressor (1) comprising a compression mechanism (3) rotated by a shaft (4) that extends through a main casing (5) defining an internal volume (6) in which an electric motor (2) is installed. The ele...
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WO/2011/148453A1 |
Disclosed is a two-stage rotary compressor wherein the inner diameter of a cylinder is increased without an increase or with only a slight increase in the outer diameter of the cylinder, so that increase of the size of the compressor is ...
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WO/2011/143882A1 |
A rotary compressor comprises a motor portion (22) and a compression mechanism portion (21) for carrying out a two-stage compression, which are provided within a sealed housing (1). The motor portion includes a stator (22a) and a rotor (...
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WO/2011/135779A1 |
Disclosed is a fluid machine (8A) provided with an expander (4) having an expander suction hole (4a) and an expander discharge hole (4b), a compressor (6) having a compressor suction hole (6a) and a compressor discharge hole (6b), and a ...
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WO/2011/118348A1 |
Provided is a complex fluid machine used in a Rankine cycle device provided with a circuit formed by sequentially connecting: a pump that sucks in a working fluid via a suction passage, and discharges the working fluid via a discharge pa...
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WO/2011/118562A1 |
A fluid machine (14, 102, 108) is provided with: fluid units (16, 20) which have rotating bodies (40, 66) and into which and from which an operating fluid flows as the rotating bodies (40, 66) rotate; and a drive shaft (72) to which the ...
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WO/2011/114750A1 |
In order to achieve the practical use of an eccentric rotary compression mechanism (20, 30) which comprises a cylinder (21, 31) having an annular cylinder space (C1), a piston (22, 32) disposed eccentrically with respect to the cylinder ...
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WO/2011/102413A1 |
Provided are a rotary compressor and a refrigeration cycle device equipped with the rotary compressor. The rotary compressor is equipped with: a primary bearing and a secondary bearing which are arranged above and below a cylinder; and a...
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WO/2011/102319A1 |
A pressure detector (53) connected to a first passage (42) detects the pressure within the first passage (42). A control unit (26) controls an inverter (25) on the basis of the pressure detection information obtained by the pressure dete...
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WO/2011/083510A1 |
Provided are a refrigeration cycling device that is capable of flow rate matching without pre-expansion or by-passing an expansion mechanism, and an expander installed in such a refrigeration cycling device. A refrigeration cycling devic...
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WO/2011/077930A1 |
Disclosed is a multi-stage vacuum pump which can maintain high compression efficiency and which suppresses pulsations and power fluctuations. In the disclosed multi-stage vacuum pump, which compresses and emits gas drawn in by the rotati...
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WO/2011/072617A1 |
A totally-enclosed type refrigeration compressor and a rotor compressor unit (40) thereof are disclosed. The rotor compressor unit (40) comprises a cylinder (1) provided with a concave accommodating part (11), an end cover (2), a rotor (...
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WO/2011/061429A2 |
The pumping device comprises: a dry rough vacuum pump provided with a gas inlet opening connected to a vacuum chamber and moreover has a gas outlet opening leading into a pipe; a delivery check valve placed in the pipe at the outlet of t...
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WO/2011/055444A1 |
A two-stage compressor and a heat pump device using a two-stage compressor operate with improved efficiency when the load is low. A heat pump device is provided with a main refrigerant circuit formed by sequentially connecting by piping ...
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WO/2011/038617A1 |
A spherical expansion compressor adapted to variable working conditions with a spherical inner chamber comprises a rolling rotor compressor used as first-stage compression, compression working chambers, expansion working chambers, a gas ...
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WO/2011/037012A1 |
An air conditioner is provided with: an indoor unit which is provided with an indoor heat exchanger and an indoor fan; an outdoor unit which is connected with the indoor unit and provided with a compressor comprising a plurality of cylin...
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WO/2011/033710A1 |
Provided is a multistage compressor which causes lubricant oil separated from intermediate pressure refrigerant gas to interfere with a stator coil end regardless of the height of a balance weight in which an oil separation plate is prov...
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WO/2011/034164A1 |
Disclosed is a multi-cylinder rotary compressor (R) in which cylinders (6A, 6B) are provided with an intervening partition plate (2) interposed therebetween, blade rear chambers (10a, 10b) communicate through a blade groove with cylinder...
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WO/2011/030809A1 |
A multiple cylinder rotary compressor (R) is provided, within an enclosed container (1), with compression mechanism sections (3A, 3B) and an oil sump section (15). The compression mechanism sections (3A, 3B) are provided with: cylinders ...
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WO/2011/018370A2 |
The invention relates to a vacuum pump system comprising two vacuum pumps (12, 35) connected to each other. In order to provide a compact vacuum pump system, the two vacuum pumps are connected by connection elements (22, 38) connected di...
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WO/2011/019048A1 |
Provided is a dry pump comprised of a center cylinder and a side cover. The center cylinder is comprised of a plurality of pump chambers including an upper pump chamber which communicates with an intake port and a lower pump chamber whic...
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WO/2011/016354A1 |
Disclosed is an exhaust heat regeneration system which makes it possible to prevent increased temperature of a pump in an expander having an integrated pump. The system comprises: an evaporator for cooling engine cooling water by means o...
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WO/2011/011434A2 |
A gaseous fluid pump having at least one cylinder having a wall defining an inner volume and containing a central axis. First and second pistons that both move along the central axis, wherein the first piston and second piston have simil...
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WO/2011/001100A2 |
This machine comprises two volute casings describing an orbital relative movement, one of the volute casings being fitted with at least one scroll (7) and the other volute casing being equipped with at least two scrolls (12, 13), the var...
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WO/2010/148986A1 |
A method for assembling a pump body of a two-cylinder rotary compressor comprises the following steps: adjusting an upper eccentric clearance and assembling; adjusting a lower eccentric clearance and assembling; and assembling eccentrica...
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WO/2010/143523A1 |
The efficiency of a compressor is increased by reducing pressure loss in a discharge muffler space into which a refrigerant compressed by the compression section is discharged. A low-stage discharge muffler space (31) is formed in an ann...
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WO/2010/143521A1 |
The efficiency of a compressor is increased by achieving at the same time both a reduction in the amplitude of pressure pulsation in a discharge muffler space, into which a refrigerant compressed by a compression section is discharged, a...
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WO/2010/143522A1 |
The efficiency of a compressor is increased by reducing pressure losses at an intermediate connection section for a multiple-stage compressor and in a discharge muffler space in a single-stage twin compressor, etc. Two connection flow pa...
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WO/2010/136472A2 |
The invention relates to a microsystem for converting a difference in pressures in a fluid into mechanical movement, this microsystem comprising: - an inlet nozzle (6) for compressed fluid and an outlet nozzle (8) for expanded fluid, - a...
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WO/2010/136470A2 |
This wheel is equipped with a tyre and an electric device (100), which needs to be supplied with power in order to operate. The device comprises a system (200) for converting the difference in pressure between the pressurized gas inside ...
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