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WO/2021/203636A1 |
A scroll compressor (1), comprising: a compressor mechanism (CM) and a drive shaft (16); a main bearing (40); a bushing (51); and a counterbalance component (50), the counterbalance component (50) comprising a base mounted on the bushing...
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WO/2021/203638A1 |
A counterbalance assembly for a scroll compressor, and a scroll compressor (1). The scroll compressor (1) comprises a compressor mechanism and a drive shaft (16). A counterbalance assembly (5) comprises: a bushing, the bushing (51) being...
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WO/2021/198732A1 |
The present invention discloses a scroll compressor 100 which includes a sealed container 10, a motor element 20 housed in the sealed container 10, a scroll compression element 30 driven by a rotating shaft portion 16 of the motor elemen...
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WO/2021/202189A1 |
A precision volumetric pump with a bellows hermetic seal provides compliance time performance comparable to a conventional pump having a dynamic seal. However, the precision volumetric pump with a bellows hermetic seal is enabled to oper...
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WO/2021/201034A1 |
Provided is a rotary compressor that exhibits excellent energy saving performance and reliability by enhancing sliding performance of a sliding portion and ensuring sealing properties in an operation chamber. An oil groove (165) is forme...
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WO/2021/196607A1 |
A single-stage enthalpy-increasing rotor compressor and an air conditioner having same. The single-stage enthalpy-increasing rotor compressor comprises at least one single-stage cylinder (1), a rotor (2), an upper flange (3), and a lower...
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WO/2021/200858A1 |
A first compression chamber (24) which compresses a fluid at a suction intake pressure, introduced into a casing (10), to an intermediate pressure higher than the suction intake pressure, and a second compression chamber (25) which compr...
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WO/2021/201033A1 |
The present invention provides a rotary compressor that is capable of inhibiting the over-compression of a compressed refrigerant compressed in a compression chamber, and that excels in energy efficiency and reliability. Provided is a ro...
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WO/2021/196543A1 |
A scroll compressor (1), comprising: a compressor mechanism (CM), the compressor mechanism (CM) comprising a fixed scroll (22) and a moving scroll (24). The moving scroll (24) comprises a drive linking part; a drive shaft (16), the drive...
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WO/2021/197704A1 |
The invention relates to an electric motor, in particular for a vacuum pump, comprising two magnetically coupled shafts. According to the invention, a corrective force can be adjusted on each shaft by means of adjusting magnet devices, a...
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WO/2021/198060A1 |
A rotary positive displacement pump (1) for pumping a fluid product. The pump (1) having a front side (17) and a rear side (18) and comprises a main body (2) providing rotational support to a pair of parallel, axially extending, shafts (...
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WO/2021/201521A1 |
The present invention provides a scroll compressor comprising: a main housing having a suction chamber into which a refrigerant flows, and accommodating a motor and a rotating shaft joined to the motor in the suction chamber; a main fram...
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WO/2021/192238A1 |
This scroll compressor is provided with: a main frame 2 provided in a shell 1; a compressing mechanism portion 4 which is supported on the main frame 2, and which compresses and discharges sucked-in refrigerant by means of a compression ...
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WO/2021/193275A1 |
[Problem] To provide a horizontal rotary compressor that can suppress separation of a vane from a piston member and can suppress agitation of lubricating oil caused by the reciprocating motion of the vane. [Solution] A horizontal rotary ...
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WO/2021/194154A1 |
An embodiment of the present invention provides a scroll compressor comprising: a housing; a motor provided inside the housing; a rotary shaft rotated by the motor; an orbiting scroll that orbits in conjunction with the rotary shaft; and...
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WO/2021/184723A1 |
Disclosed is a compressor (1). The compressor (1) comprises a main bearing block (10). The main bearing block (10) comprises a main bearing block body (16) and a compression mechanism (30) used for supporting the compressor (1). The main...
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WO/2021/179571A1 |
Disclosed is a scroll compressor, comprising a shell (2) and a static scroll part (3), wherein a first fluid passage (001) for introducing and receiving a fluid from an external pipeline is provided inside the shell; and a second fluid p...
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WO/2021/182749A1 |
A valve assembly forms a check valve for a scroll compressor including a fixed scroll having a pair of injection ports fluidly coupled to a compression mechanism. The valve assembly includes a valve body having a pair of flow paths with ...
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WO/2021/182841A1 |
Provided is a scroll compressor with enhanced sealing structure of a back pressure chamber. The scroll compressor includes a housing, a fixed scroll fixed to inside of the housing and including a fixed wrap, an orbit scroll including an ...
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WO/2021/176541A1 |
This scroll compressor is provided with: a compression mechanism provided with a fixed scroll and an oscillation scroll that performs oscillation motion with respect to the fixed scroll; an electric motor that drives the compression mech...
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WO/2021/176222A1 |
Aspects of the present invention relate to a scroll pump (1; 101). The scroll pump (1; 101) has an axially extending drive shaft (15; 115); a fixed scroll (5; 105); and an orbiting scroll (3; 103). The drive shaft (15; 115) has an eccent...
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WO/2021/174792A1 |
Disclosed is a horizontal scroll compressor (100), comprising: a fixed scroll component (150), wherein the fixed scroll component (150) comprises a fixed scroll end plate (154), a spiral blade (156) formed on one side of the fixed scroll...
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WO/2021/175680A1 |
Dry vacuum pump (1) comprising: - a stator (2) comprising at least one first and at least one second complementary half-shells (7, 8), each half-shell (7, 8) comprising at least one half-partition (13e) joined together with a half-partit...
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WO/2021/171340A1 |
The rotary compressor according to an embodiment has a shaft, a plurality of compression mechanisms, a plurality of eccentric parts, a first balancer, and a second balancer. The plurality of eccentric parts have a first eccentric part, a...
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WO/2021/171889A1 |
Provided is a liquid supply type screw compressor capable of suppressing a temperature rise of a liquid while suppressing a liquid stirring work.　The liquid supply type screw compressor has a male rotor 11A and a female rotor 11B, a ma...
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WO/2021/171677A1 |
In the present invention, a lower-end plate cover (170S) is provided with a bulging section (171S), a portion of which faces a lower discharge hole. In the circumferential direction of a rotating shaft (15), a plurality of bolt holes (13...
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WO/2021/164240A1 |
A counterweight assembly (180a, 180b) and a compressor (10) having same. The counterweight assembly (180a, 180b) comprises: a counterweight body (184) having a cylindrical outer peripheral surface and a hollow part therein.
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WO/2021/167288A1 |
An embodiment of the present invention provides a scroll compressor comprising: a housing; a motor which is provided in the housing; a rotary shaft which is rotated by the motor; an orbiting scroll which revolves in connection with the r...
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WO/2021/164422A1 |
Disclosed is an operation structure for a positive displacement pump, a motor and a flowmeter. The operation structure contains a shell and a rotating wheel assembly, wherein the rotating wheel assembly is provided with a main rotor (5),...
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WO/2021/164239A1 |
A compressor, comprising: a casing body (20), the casing body (20) having a suction inlet (22), a casing body inner wall (27), and a casing body outer wall (26); a compression mechanism, the compression mechanism being used for performin...
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WO/2020/165592A9 |
A pump and method for pumping a gas are disclosed. The pump comprises: a pump housing element and a further element; one of the pump housing and the further element comprising a helical protrusion extending towards the other element, the...
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WO/2021/160677A1 |
The invention relates to a screw compressor for compressing a medium, having a drive unit (01), which has a drive (06, 07), and having a compressor unit (03), which has two intermeshing rotors (21, 22) with mutually complementary screw p...
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WO/2021/161517A1 |
The purpose of the present invention is to obtain a scroll compressor which suppresses stress occurring on a contact part due to partial contact between a lap leading end and a base plate to improve durability. This scroll compressor is ...
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WO/2021/161067A1 |
Rotary positive displacement pump (1) comprising a one-piece drive housing (6) provided with an opening (8) with a closing cover (9) and with bearing seats (12, 13, 14, 15) engaging at least one bearing, wherein a primary drive shaft (16...
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WO/2021/161806A1 |
[Problem] To provide an electric compressor with which it is possible to achieve an improvement in refrigeration capability while suppressing an increase in size. [Solution] This electric compressor is provided with: a scroll compressing...
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WO/2021/157121A1 |
In the present invention, an injection passage (21) and a check valve chamber (22) that connect in the radial direction from an outer circumferential surface to a compression chamber (13) are formed on an involute angle extension side po...
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WO/2021/158662A1 |
A multistage compressor system with intercooler can include a sealed housing with first and second compressor stages, where the first compressor stage is for receiving refrigerant from outside of the sealed housing, and the second compre...
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WO/2021/157332A1 |
A scroll compressor (100) is configured so as to rotate a turning scroll (12) by fitting an eccentric shaft (13a) to a turning bearing (13d) of the turning scroll (12). The turning bearing (13d) or the eccentric shaft (13a) is imparted w...
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WO/2021/156938A1 |
This scroll compressor (1) comprises a hollow shell and a compression mechanism part (14) accommodated inside the shell and having a fixed scroll (90) which has a planar first base plate (95) and spiral first spiral teeth (96) that exten...
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WO/2021/152294A1 |
A set of seals for sealing between the stator components of a pump, the stator components comprising two half shells defining at least one pumping chamber and two head plates to be mounted at either end of the two half shells. The set of...
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WO/2021/155278A1 |
A compressor may include a shell assembly, a first scroll, a second scroll, a driveshaft, and a bearing. The first scroll includes a first end plate and a first spiral wrap extending from the first end plate. The second scroll includes a...
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WO/2021/153099A1 |
This scroll compressor has a gap in the axial direction between a fixed spiral wrap (11b) and an orbiting scroll bottom surface (12e), and between an orbiting spiral wrap (12b) and a fixed scroll bottom surface (11d). The scroll compress...
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WO/2021/149972A1 |
The invention relates to an arrangement (20) for plug-connecting electrical connections through a housing (2), in particular a device for driving a compressor (1). The arrangement (20) exhibits at least one plug-in connection (21, 22, 22...
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WO/2021/148475A1 |
The invention relates to the compression of steam in the form of R718 with or without the addition of additives in the form of an aqueous solution in rotational displacement machines, in particular for refrigeration, air-conditioning, an...
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WO/2021/149180A1 |
This compressor comprises: a shell that configures an outer case and has an oil reservoir for collecting oil formed in a lower section thereof; a motor that is provided inside the shell; a compression part that is provided inside the she...
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WO/2021/148525A1 |
Dry vacuum pump (1) in which the at least two pumping stages (1a-1f) each have an inlet (7) and an outlet (8) emerging from a respective half-shell (9, 10), the stator (2) also having a stator casing (15) surrounding the joined half-shel...
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WO/2021/150240A1 |
An improved screw pump such as, for example, a twin screw pump, includes a casing including an internal chamber, and first and second rotors rotatably positioned within the chamber of the casing. The first and second rotors have an inter...
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WO/2021/147337A1 |
A scroll compressor, the scroll compressor comprising: a rotary shaft (4); a compression mechanism (M), the compression mechanism (M) comprising a fixed scroll member (2) and a moving scroll member (3), an extension portion of the moving...
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WO/2021/149303A1 |
In a scroll compressor according to the present invention: a pair of fixed-side keys 17b are formed on one ring surface of a ring portion 17a, with pedestals 17d therebetween; a pair of revolving-side keys 17c are formed on said one surf...
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WO/2021/145561A1 |
The present invention relates to a compressor that heats steam and a laundry treating apparatus to which the compressor is applied. The compressor may have a structure to prevent condensation of steam therein or to discharge condensed st...
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