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WO/2009/062583A1 |
The invention relates to a two-stage air compressor, comprising a first compression stage with a low pressure cylinder; a second compression stage with a high pressure cylinder; a connecting element for producing a channel connection fro...
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WO/2009/062366A1 |
A discharge valve device of a rotary compressor includes two or more cylinders (11, 12) disposed in a casing (2), pistons (16, 17) and sliding vanes (18, 19) provided in the cylinders (11, 12), and a main bearing (21) and an auxiliary be...
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WO/2009/062365A1 |
A suction device for capacity-controlled rotary compressor, includes a motor, an upper cylinder (12) and a lower cylinder (13) which are placed in a shell body of the compressor, a clapboard (25) fixed between the cylinders, a piston (14...
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WO/2009/061038A1 |
The present invention provides a 2 stage rotary compressor (100) including a hermetic container (101 ), a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly (120), a middle plate ...
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WO/2009/061039A1 |
The present invention provides a 2 stage rotary compressor including a hermetic container (101) defining an outward appearance of the compressor (100), a 2 stage compression assembly provided in the hermetic Container, wherein a low pres...
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WO/2009/050126A1 |
A device for varying pressure of a fluid comprising a scroll case (11) containing a fixed scroll (12) and a mobile scroll (13) relatively to the case, and with admission (A) and outlet (B) ports for the fluid, characterized in that it co...
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WO/2009/044197A2 |
A multi-stage, clam shell, vacuum pump comprises two housing components (12) which are to be sealingly connected to one another such that an array of chambers extending longitudinally from an inlet region of the pump to an outlet region ...
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WO/2009/041056A1 |
A rotary compressor (1) has an annular piston (40) received in a partitioning manner in cylinder chambers (60, 65), or an outer cylinder chamber (60) and an inner cylinder chamber (65), so as to be eccentric relative to a cylinder (35). ...
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WO/2009/040412A1 |
The invention relates to a vacuum pump comprising a housing (1), a mechanical portion (19) and a pumping portion (22). The pumping portion (22) includes two meshed helical rotors (A, B) each having a helical torsion about a longitudinal ...
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WO/2009/034717A1 |
A compressor (1) having compression mechanisms (20, 50) stacked in two tiers, the compression mechanisms (20, 50) respectively having cylinders (21, 51) with annular cylinder chambers (C1, C2, C3, C4) and respectively having annular pist...
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WO/2009/031626A1 |
Provided is a two-cylinder rotary type compressor comprising a compression mechanism unit (2) including a first cylinder (8A) and a second cylinder (8B) so formed through an intermediate partition (7) as to have a first cylinder chamber ...
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WO/2009/028261A1 |
A natural refrigerant low-pressure shell-type rotary compressor in which the amount of oil contained on the high-pressure side is reduced with sufficient lubrication and sealing performance at a sliding section secured. The compressor ha...
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WO/2009/028633A1 |
Provided is a multicylinder rotary type compressor (200), which satisfies relations of Rc < Rm + e and Rc ≥ Rs + e, for the radius (Rs) of an auxiliary shaft portion (4b), the radius (Rc) of a crankshaft portion (4c) and an eccentricit...
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WO/2009/025244A1 |
Provided is a multi-stage compressor which can reduce the oil circulation ratio by reducing the lubricant amount introduced into a high-stage side compression mechanism accompanied by an intermediate pressure coolant gas so as to improve...
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WO/2009/024698A2 |
The invention relates to a refrigeration compressor having a sealed housing defining a suction volume and a compression volume respectively provided on either side of a body (5) contained in the housing, and an oil injection circuit adap...
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WO/2009/024262A1 |
In a multi-level rotary piston vacuum pump or compressor, having at least two rotors (6, 7) in the form of rotary pistons, being disposed in a housing (1) on parallel shafts (5, 8) in a rotationally fixed manner, being synchronized count...
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WO/2009/017297A1 |
The present invention provides a 2 stage rotary compressor including a hermetic container (101 ), an electric motor (110) provided in the hermetic container (101 ) and composed of an stator (111 ), a rotor (112) and a rotation axis (113)...
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WO/2009/014161A1 |
Provided is a multi-stage compressor which can surely prevent a liquid compression by a compression mechanism of the higher stage side and prevent lowering of compression efficiency by overheat of an injection coolant and hoisting of a l...
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WO/2009/010796A2 |
An engine comprising a first section having a first face and a second section having a second face, the first and second faces being opposed to one another and arranged for relative rotation, the first face comprising at least one chambe...
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WO/2009/003884A1 |
The invention relates to a compressor for refrigerant, having an outer housing, having a spiral compressor with a first fixed compressor body arranged in the outer housing, and a second compressor body which can be moved relative to the ...
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WO/2008/149491A1 |
The inner space of a casing (31) is partitioned by partition members (61, 80) into a first space (38) and a second space (39). In the first space (38) is placed an expansion mechanism (60), and in the second space (39) are placed a compr...
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WO/2008/146634A1 |
[PROBLEMS] To provide a hybrid compressor having a delivery chamber of sufficient volume formed between the fixed scroll of a first compression mechanism and the fixed scroll of a second compression mechanism. [MEANS FOR SOLVING PROBLEMS...
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WO/2008/139877A1 |
A system for utilizing waste heat from a vehicle has a Rankine circuit, and the Rankine circuit has a fluid machine. An electric power generation unit of the fluid machine has a third rotation body placed coaxial with a first rotation bo...
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WO/2008/139667A1 |
A fluid machine (10) comprises a sealed container (11) at the bottom of which an oil reservoir (16) for storing oil is formed. In the sealed container (11), a main compression mechanism (3) to which the oil stored in the oil reservoir (1...
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WO/2008/137230A1 |
A system, in one embodiment, may include an engine, a compressor coupled to the engine, and an oil fill assembly coupled to the compressor. The oil fill assembly relocates an oil fill location from a bottom region of the compressor to a ...
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WO/2008/114860A1 |
A large capacity compressor employing CO2 as working gas. The multistage compressor comprises an enclosed housing, a plurality of compression mechanisms provided in the enclosed housing, and a motor for driving the plurality of compressi...
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WO/2008/108062A1 |
An expander-integrated compressor (10) has a two-stage rotary type expansion mechanism (3) having a first cylinder (41) and a second cylinder (42). In the expansion mechanism (3) are formed a suction hole (71) facing an operation chamber...
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WO/2008/105090A1 |
The annular cylinder chambers (C1, C2) of a cylinder (21) are divided into an outer cylinder chamber (C1) and an inner cylinder chamber (C2) by an annular piston (22). When the cylinder (21) is eccentrically rotated by the driving of a m...
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WO/2008/101387A1 |
A controlling method of a rotary compressor. Two or more cylinders (12,13) with different volumes are disposed in the compressor (1). In each cylinder (12,13) are respectively provided a piston (14.1,14.2), an eccentric crankshaft (17) f...
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WO/2008/096578A1 |
A valve body (64) that moves to open and close a bypass path (66) is fitted in a valve body receiving section (61). The valve body (64) forms, inside the valve body receiving section (61), a high pressure side space (61b) and a high pres...
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WO/2008/088660A2 |
An improved system and methodology for starting up a gas-turbine driven multi-stage compressor. The improvement involves isolating individual compression stages and creating positive pressure in each stage prior to initiating rotation of...
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WO/2008/087887A1 |
A compressor with a compression mechanism whose displacement can be varied by discharging a part of a refrigerant in a compression chamber through a bypass passage. A bypass passage opening opened to the compression chamber has a suffici...
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WO/2008/081899A1 |
A multistage compressor employing a gas injection system for CO2 cycle that attains enhancements of compression efficiency and compression performance. The multistage compressor is multistage compressor (2) for CO2 cycle (1) adapted to c...
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WO/2008/072720A1 |
A first split rotation shaft (10a) and a second split rotating shaft (10b) are eccentrically supported on the rotary shaft (7) of a motor (9) so as to be capable of rotating through bearings (11, 12) which do not receive a force in the t...
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WO/2008/062838A1 |
A compression mechanism (50) for compressing a refrigerant, an expansion mechanism (60) for expanding the refrigerant, and a rotating shaft (40) connecting the compression mechanism (50) and the expansion mechanism (60) are placed in a c...
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WO/2008/062839A1 |
A compression mechanism (50) for compressing a refrigerant, an expansion mechanism (60) for expanding the refrigerant, and a rotating shaft (40) for connecting the compression mechanism (50) and the expansion mechanism (60) are stored in...
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WO/2008/062837A1 |
A compression mechanism (50) for compressing a refrigerant, an expansion mechanism (60) for expanding the refrigerant, and a rotating shaft (40) connecting the compression mechanism (50) and the expansion mechanism (60) are placed in a c...
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WO/2008/053708A1 |
A rotary fluid machine having a stationary member and a movable member forming a fluid chamber along with the stationary member. In the rotary fluid machine in which the movable member eccentrically rotates about the stationary member wh...
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WO/2008/044064A2 |
A vacuum pump housing comprises first (12) and second half-shell stator components (14) defining a plurality of pumping chambers separated by partition members (26, 28, 30, 32). Each pumping chamber comprises an inlet port (42, 44, 46, 4...
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WO/2008/044456A1 |
A rotary expander having a cylinder (61), a piston (62) placed inside the cylinder (61), closure members arranged so as to hold the cylinder (61), and an injection path for further introducing operation fluid into an operation chamber (6...
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WO/2008/030491A2 |
A pump having a housing with an actuator member positioned inside for controlling the flow generated by the pump. A first decrease port is connected to the housing and has a surface area in operable contact with the actuator member. A se...
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WO/2008/026428A1 |
A multi-stage rotary fluid machine can be constituted as a so-called two-stage rotary expansion machine where refrigerant expands in an expansion chamber constituted of the first delivery side space (115b) of a first cylinder (105), the ...
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WO/2008/019416A1 |
The invention relates to a multi-stage compressor (1) for compressing gases having a low-pressure region (2) and having a high-pressure region (5), wherein at least one rotary compressor (3) is provided in the low-pressure region (2) and...
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WO/2008/009072A1 |
Method for controlling a compressed air unit which consists of several compressed air networks (2 and 3) having at least one commonly controllable component, characterised in that , on the basis of measurement data of at least one of the...
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WO/2008/009073A1 |
Method for controlling a compressed air unit (1) comprising one or several compressed air networks, as well as a number of communicating controllers ( 6, 9, 13, 23, 24, 25 or 26) for controlling components that are part of the aforesaid ...
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WO/2008/003657A1 |
The invention relates to the drive for a screw spindle pump for the feeding and compression of gases, wherein the displacement rotors are driven via a crown-wheel or bevel-wheel transmission. In order to comply with the usual pump dimens...
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WO/2007/145465A1 |
Provided is a scroll compressor having an improved function of oil circulation and back pressure control. The scroll compressor includes: a housing; a drive part for generating a rotational force; a drive shaft driven by the drive part; ...
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WO/2007/132649A1 |
A compressor (100) with a built-in expander comprises a closed container (1) in which an oil is stored at the bottom, a compressing mechanism (2) or an expanding mechanism (3) disposed at the inside upper part of the closed container (1)...
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WO/2007/119307A1 |
In a compression/expansion unit (30) as a fluid machine, both a compression mechanism (50) and an expansion mechanism (60) are stored in a casing (31). An oil feed passage (90) is formed in a shaft (40) for connecting the compression mec...
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WO/2007/107514A1 |
The present invention relates to a compressor (1) comprising a casing composed of two parts being an upper and lower casing (3 and 4) and more than one fin (6) mounted on the casing to increase the heat transfer surface area.
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