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WO/2020/215779A1 |
Disclosed are a crankshaft deformation balance method and device, a crankshaft with balance weights determined according to the method, and a scroll compressor using the crankshaft. The method comprises: determining a centrifugal compone...
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WO/2020/215663A1 |
Disclosed is a scroll compressor (100, 100A). The scroll compressor (100, 100A) comprises: a compressing mechanism (M), which compressing mechanism (M) comprises a fixed scroll plate (10) and a movable scroll plate (20); an exhaust check...
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WO/2020/217110A1 |
A liquid-injected compressor or vacuum pump device with a liquid- injected compressor or vacuum pump element (2), which comprises a liquid return system (7), a motor (4) to drive the compressor or vacuum pumping element (2), a gearbox (3...
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WO/2020/218238A1 |
The present invention provides a lightweight scroll pump rotor in which the gaps between scroll vanes are precisely managed, and a scroll pump comprising the scroll pump rotor. The scroll pump rotor is used in a scroll pump 1 that is pro...
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WO/2020/215723A1 |
Provided is a scroll compressor, comprising a compression mechanism (CM) and a valve assembly (200), wherein the compression mechanism (CM) is provided with a vent (V), and the valve assembly (200) is used for selectively opening and clo...
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WO/2020/217065A1 |
The invention provides a scroll pump comprising an orbiting scroll and a fixed scroll, wherein the orbital axis of the orbiting scroll is movable in a radial direction relative to the 5 fixed scroll while the orbiting scroll is orbiting ...
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WO/2020/217385A1 |
According to the present invention, a rotary compression part (6) has a plurality of cylinders (60A, 60B) that form compression chambers (63A, 63B) and are disposed side by side in the vertical direction, and a separator plate (69) dispo...
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WO/2020/215662A1 |
A scroll compressor, comprising: a shell having a top cover (1) and a shell body (3); and a scroll mechanism having a static scroll (2) and a movable scroll, wherein the scroll compressor comprises a positioning structure having a positi...
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WO/2020/217066A1 |
The invention provides a crank sleeve for a scroll pump. The crank sleeve has a longitudinal axis and is configured to provide a radially extending crank offset for imparting an orbital path on an orbital scroll of the scroll pump. The c...
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WO/2020/215724A1 |
Disclosed are a main bearing seat (100) for a scroll compressor (10), and a scroll compressor (10). The main bearing seat (100) comprises substantially ring-shaped thrust parts (120A, 120B, 120C) for supporting a compressing mechanism of...
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WO/2020/211449A1 |
A dual-cylinder two-stage variable-capacity compressor, comprising: a first cylinder (15), an exhaust port of the first cylinder (15) being in communication with a first exhaust passage (21); and a second cylinder (13), the second cylind...
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WO/2020/213155A1 |
A scroll compressor (1) wherein: a fixed end plate (41) of a fixed scroll (40) is positioned on the outside of a fixed wrap (42) in the radial direction so as to form a ring shape with an axis line (O1) as the center, and has a ring-shap...
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WO/2020/211450A1 |
A variable capacity compressor, comprising two cylinders (13, 15), and an intermediate plate (14) for separating the two cylinders (13, 15). At least one communication channel (141) is formed in the intermediate plate (14). One end of th...
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WO/2020/213080A1 |
A rotary compressor is provided with: a cylinder having a compression chamber; and a rotary piston that rotates along an inner peripheral surface of the cylinder. The cylinder has a guide hole ranging from a connection port to which an i...
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WO/2020/208765A1 |
A scroll compressor (1) wherein: an orbiting end plate (44) of an orbiting scroll (43) comprises: a thick portion (44a) that forms a disk shape and is provided with an orbiting wrap (45); and a thin portion (44b) that is integrated with ...
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WO/2020/208255A1 |
The invention relates to a screw compressor with a housing (1) and a rotor assembly (8) arranged in the housing (1) for conveying fluid. The rotor assembly (8) comprises a first rotor (9) which can be rotated about a first rotational axi...
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WO/2020/208803A1 |
Either one of an outside curve and an inside curve of a fixed spiral body and an orbiting spiral body respectively is a curve that is an involute of a base circle, and that is defined by formula (1) and formula (2) using an involute angl...
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WO/2020/209824A1 |
Refrigerant compressor with external cooling, comprises housing (1), inside which there are: crankshaft (2), rotor (3), stator (4,) compression chamber (5), oil sump (6); and outside on the housing (1) there are pipe for refrigerant inle...
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WO/2020/200906A1 |
Compressed air station comprising at least two waste heat-delivering compressed air components, with the respective compressed air component being designed either as a compressor or as a refrigeration dryer, with at least one of the comp...
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WO/2020/200904A1 |
The invention relates to a compressed air station comprising at least two compressed air components that deliver waste heat, with each compressed air component being designed either as a compressor or as a cold dryer, and also comprising...
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WO/2020/202676A1 |
Provided is a highly reliable compressor or the like. A compressor (100) is provided with: an airtight container (1) in which lubricating oil is sealed; an electric motor (6) which has a stator (6a) and a rotor (6b) and which is installe...
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WO/2020/202544A1 |
This hermetic rotary compressor comprises a crankshaft, an electric motor section that causes the crankshaft to rotate, a compression mechanism section driven by the crankshaft, and a hermetic container within which the aforementioned co...
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WO/2020/201218A1 |
The present invention relates to a dry-type vacuum pump (1) comprising an ancillary stator (13) at least traversed by one of the shafts (4); - a suction pipe (14) provided with a controllable inlet valve (15), connecting an inlet (17) of...
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WO/2020/202515A1 |
Provided is a compressor and the like with high reliability. A compressor (100) includes a cylindrical oil ring (15) provided between a compression mechanism portion (2) and an electric motor (6). A stator (6a) of the electric motor (6) ...
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WO/2020/205672A1 |
A compressor that includes a shell assembly, a compression mechanism and a conduit. The shell assembly defines a chamber. The compression mechanism is disposed within the chamber of the shell assembly and includes a first scroll member a...
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WO/2020/201477A1 |
The application relates to a scroll compressor (24) for refrigerant of a vehicle air conditioning system, comprising a fixed scroll (58) having a baseplate (58b) and having a spiral wall (58a) and also having a circumferential delimiting...
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WO/2020/202984A1 |
This vane pump (100) is provided with a pump housing (10) having an accommodation recess part (11) and a pump cartridge (20) accommodated in the accommodation recess part (11), wherein: the pump cartridge (20) has a rotor (24), a plurali...
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WO/2020/198442A1 |
A compressor may include a compression mechanism, a driveshaft, and an oil allocation member. The driveshaft drives the compression mechanism and includes a lubricant passage having an inlet and first and second outlets. The first outlet...
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WO/2020/197598A1 |
A seal assembly configured for use with a high pressure single screw compressor includes a seal body and at least one attachment structure. The at least one attachment structure fixedly attaches the seal body to the rotor of the compress...
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WO/2020/194994A1 |
A scroll compressor (10) is provided with: a cylindrical casing (10); and a circumferential guide (83) that is provided on an inner peripheral surface of the casing (10) and guides a compressed refrigerant. The circumferential guide (83)...
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WO/2020/195490A1 |
This sealed compressor is provided with a compression mechanism unit that compresses a refrigerant in a sealed vessel, wherein: the compression mechanism unit is provided with a first member and a second member that slide against each ot...
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WO/2020/196002A1 |
[Problem] To provide a scroll compressor with which it is possible for a pressure loss in a pathway extending from a discharge space to a discharge port to be reduced effectively. [Solution] This scroll compressor is provided with a disc...
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WO/2020/194762A1 |
The purpose of the present invention is to provide: a refrigerator oil (lubrication composition) that improves the wear resistance of an Oldham's link during a high oil temperature/low speed operation; and a method for producing the same...
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WO/2020/194906A1 |
The present invention provides a scroll member which has excellent mechanical strength at the root part of a blade, where the largest load is applied, and which is provided with an alumite film that has a sufficient hardness. The prese...
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WO/2020/187342A1 |
In a two-rotor or piston compressor, a portion of compression of the sucked -in gas in the working space (3) is carried out by feeding the compressed gas directly into the working space (3) through a different path (7, 9) than the path (...
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WO/2020/189603A1 |
[Problem] To provide a scroll compressor with improved workability when communicating a back pressure chamber and a compression chamber. [Solution] The present invention comprises: a back pressure chamber 39 that is formed in a back surf...
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WO/2020/189602A1 |
[Problem] To provide a scroll compressor with which it is possible to eliminate the problem of excessive back pressure in a wide suction pressure range. [Solution] The scroll compressor is provided with: a back pressure chamber 39 formed...
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WO/2020/188738A1 |
The outer curve of one spiral is defined using a basic curve and a group of circles having a radius of eλ, and the inner curve thereof is defined using an inversion curve and a group of circles having a radius of eλ. The inner curve of...
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WO/2020/189601A1 |
[Problem] To provide a scroll compressor in which the development of localized contact caused by deformation of a fixed scroll or a movable scroll due to the influence of compressive reaction force or thermal expansion is effectively sup...
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WO/2020/182317A1 |
A dry pump for gas comprises a first rotor (1) comprising a first portion with lobes (1A) and a first screw (1B), and also a second rotor (2) comprising a second portion with lobes (2A) and a second screw (2B). A casing delimits an inter...
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WO/2020/185860A1 |
A compressor includes a shell, first and second scroll members, a fitting assembly and a valve assembly. The first scroll member includes a first end plate having a first spiral wrap extending therefrom. The second scroll member includes...
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WO/2020/184873A1 |
The objective of the present invention is to provide a fluid compressor comprising: a driving module (10) comprising a driving motor and a motor case in which the driving motor is embedded; and a compression module (20) comprising a roto...
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WO/2020/183627A1 |
This scroll machining device is a device for machining a scroll base material using a machining tool, by moving the machining tool and the scroll base material, which is fixed onto a table, relative to one another. The scroll machining d...
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WO/2020/183546A1 |
A helical gear pump comprises: a casing that is constituted by a body (11), a front cover (12), and a rear cover (13); a pair of helical gears (23) and (24) that is accommodated inside a hole formed in the body (11) and meshes with each ...
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WO/2020/179051A1 |
This scroll compressor is provided with a fixed scroll and an orbiting scroll having spiral teeth that mesh with each other, and which performs compression by causing the orbiting scroll to orbit around the fixed scroll, wherein the spir...
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WO/2020/179652A1 |
A compressor comprises a rotary shaft (12), a rotary body (160) that rotates with the rotation of the rotary shaft, a fixed body (90, 110) that does not rotate with the rotation of the rotary shaft, and a vane (131) inserted in a vane gr...
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WO/2020/177357A1 |
A compressor (100) and an air conditioner. The compressor (100) comprises: a first cylinder assembly (30) comprising a first cylinder (32) and a first slide (36); and a volume-variable control assembly (40) comprising a voltage stabilizi...
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WO/2020/178344A1 |
The invention relates to an oil-lubricated rotary vane vacuum pump (1) comprising a rotary vane unit (2), having a rotary vane chamber (10) and a rotary vane rotor (11), and comprising an oil separator device (3), wherein gas and oil are...
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WO/2020/179043A1 |
A hermetic compressor comprising, on the interior of a hermetic container, a compression mechanism and an electric motor which drives the compression mechanism, with the compression mechanism being driven by the electric motor which is l...
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WO/2020/178895A1 |
This screw compressor comprises an internal volume ratio variable mechanism including a variable Vi valve that enables a Vi value, which is an internal volume ratio, to be varied. In the screw compressor, the position of the variable Vi ...
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