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WO/2021/231600A1 |
A squeeze film damper assembly (100) for a compressor (12) includes a damper sleeve (112) configured to be disposed about a rotor shaft (72) of the compressor (12). The damper sleeve (112) includes a pressure dam pocket (166) formed in a...
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WO/2021/231604A1 |
A compressor includes a shell assembly, a muffler plate and a compression mechanism. The shell assembly has a suction chamber and a discharge chamber. The muffler plate is disposed within the shell assembly and separates the suction cham...
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WO/2021/228459A1 |
The invention relates to a scroll compressor (6) of an electrical refrigerant drive (2), comprising: a housing (20) having a low-pressure chamber (46) and a high-pressure chamber (48) and having compression chambers (S, K, D, DD) and a c...
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WO/2021/231158A1 |
A compressor includes an assembly with a case body defining a chamber, a shaft defining a rotational axis, a ring piston positioned within the chamber, a rotor assembly positioned within the ring piston, the rotor assembly being mounted ...
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WO/2021/228490A1 |
Device (200) for monitoring a deposit of reaction by-products for the discharge (7) of a vacuum pump (1; 100), characterized in that it comprises - a thermal flowmeter (20) comprising a first temperature probe placed at an upstream locat...
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WO/2021/228355A1 |
The present invention relates to a dry vacuum pump comprising: - a drive device (1) comprising a drive shaft (3) at one end of which a drive wheel (4) for moving a belt (5) is attached; - at least two parallel rotors (7, 8) each comprisi...
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WO/2021/228460A1 |
The invention relates to a scroll compressor (6) of an electrical refrigerant drive (2), comprising: a housing (20) having a low-pressure chamber (46) and a high-pressure chamber (48) and having compression chambers (S, K, D, DD) and a c...
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WO/2021/229743A1 |
This screw compressor comprises: a casing having a discharge port; a screw rotor which is accommodated in the casing, and of which one end side is an axial intake side and the other end side is an axial discharge side; and a slide valve ...
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WO/2021/228793A1 |
The present invention relates to a dry vacuum pump comprising: - a drive device (1) comprising a drive shaft (3) at one end of which at least one drive wheel (4) for moving at least one belt (5) is attached; - at least two parallel rotor...
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WO/2021/225617A1 |
A liquid level sensor having improved performance is disclosed as including a metal cover plate; a conductive pin, the conductive pin penetrating the metal cover plate; a plurality of electrode plates; a plurality of support plates suppo...
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WO/2021/218050A1 |
A valve assembly and a compressor, the valve assembly (100, 200, 300) comprising: a valve plate (110) and a valve stop (120, 220), the valve stop (120, 220) comprising a retaining part (122, 222) and a limiting part (124, 224) configured...
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WO/2021/218046A1 |
A scroll compressor, comprising: a housing (10a, 10b); a compression mechanism, comprising a moving scroll (20a) and a fixed scroll (30a), the moving scroll (20a) and the fixed scroll (30a) being engaged in a mutual meshing manner to for...
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WO/2021/222112A1 |
A compressor includes a shell, a first scroll member, a second scroll member and a sealing assembly. The shell defines a first pressure region and a second pressure region. The first scroll member is disposed within the shell and include...
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WO/2021/220449A1 |
This rotary compressor is provided with an annular cylinder in which a compression chamber is formed, and a piston rotating along the inner circumferential surface of the cylinder. The piston eccentrically rotates in the cylinder to comp...
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WO/2021/215652A1 |
A compressor according to embodiments of the present invention may include an avoidance part which is provided by denting or forming a recess on a partial area of at least one of the fixation wrap and the rotation wrap and is provided to...
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WO/2021/215734A1 |
The present invention relates to a compressor wherein, when oil is supplied to a single module, the module can mechanically/structurally supply the oil to a plurality of regions in a selective manner according to the pressure of a refrig...
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WO/2021/212772A1 |
A scroll compressor. The scroll compressor comprises: an orbiting scroll part (20), with the orbiting scroll part (20) having an end plate (22); and a thrust plate (80), with the thrust plate (80) being configured to axially support the ...
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WO/2021/215733A1 |
The present invention relates to a scroll compressor having a regulating part, provided in a modular manner outside of a compression part, for determining whether to selectively supply oil from one oil-feeding path to a plurality of regi...
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WO/2021/214913A1 |
A compressor including: a container; an electric motor provided inside the container; a rotating shaft fixed to the electric motor and rotationally driven by the electric motor; an annular cylinder that is fixed to an inner wall of the c...
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WO/2021/214907A1 |
This compressor includes a closed container, an electric motor unit, a crankshaft, and a compression mechanism unit. The crankshaft has a main shaft part and an eccentric shaft part. The eccentric shaft part is formed with a plurality of...
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WO/2021/215651A1 |
A compressor according to embodiments of the present invention comprises a discharge valve which is provided so as to be coupled to a fixed scroll and open/close a discharge hole. The discharge valve includes a coupling portion which is ...
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WO/2021/215674A1 |
A compressor according to embodiments of the present invention may comprise: a first fluid channel provided to communicate with an oil supply fluid channel so as to allow oil to flow therethrough; a second fluid channel provided to exten...
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WO/2021/208386A1 |
A scroll compressor, comprising: a compression mechanism, the compression mechanism comprising a fixed scroll (2) and a movable scroll (3), and the movable scroll (3) being configured to be able to orbit relative to the fixed scroll (2) ...
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WO/2021/204592A1 |
The invention relates to a scroll-type positive displacement machine, in particular a scroll compressor, comprising a high-pressure chamber (11), a low-pressure chamber (12), an orbiting displacement spiral (13), a counter spiral (14), a...
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WO/2021/204112A1 |
Disclosed is a screw compressor (100), comprising a screw compressor housing (101), a discharge cavity (113), at least one silencing channel, and at least one adjustment piston, wherein the discharge cavity (113) is defined by at least o...
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WO/2021/203662A1 |
Disclosed are a static scroll (100) of a scroll compressor, and an intermediate member and method for manufacturing the static scroll (100). The static scroll (100) comprises an end plate (16), a scroll blade (14) provided on the surface...
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WO/2021/203639A1 |
Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises a movable scroll (50) and a stationary scroll (40), wherein the movable scroll (50) comprises a movable scroll end plate (54) and a movabl...
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WO/2021/203610A1 |
A Roots blower having a flow guiding device, comprising a housing (1), an air inlet and an air outlet are provided on the housing (1), an air intake flow guiding cone (2) is provided within the air inlet, an air intake flow passage is fo...
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WO/2021/204591A1 |
The invention relates to a scroll-type positive displacement machine, in particular a scroll compressor, comprising a high-pressure chamber (11), a low-pressure chamber (12), an orbiting displacement spiral (13), a counter spiral (14), a...
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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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