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WO/2023/112178A1 |
A muffler (10) with a check valve is attached to an exhaust port (6) of an evacuation device (1). A downstream check valve (60) of the muffler (10) comprises a spherical valve body (62) inserted into a downstream expansion chamber (16), ...
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WO/2023/108924A1 |
An exhaust one-way valve (100) for a compressor, and a compressor (1000) having same. The exhaust one-way valve (100) comprises: a valve housing assembly (1) and a valve core assembly (2), wherein the valve housing assembly (1) comprises...
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WO/2023/110623A1 |
A scroll compressor (1) including a hermetic casing (2) provided with a suction inlet (3); a compression unit (6); a drive shaft (23) configured to drive an orbiting scroll (8) of the compression unit (6) in an orbital movement; an elect...
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WO/2023/111745A1 |
Pressurizing device (1) for compressing a fluid (2), comprising a housing ( 4 ), a fluid duct (5), one or more pressurizing stages (38, 39) each comprising a pressurizing element (40, 41), a device for forcing an airflow (24) in an air c...
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WO/2023/113290A1 |
Disclosed are an electric compressor and a control method thereof. The present embodiment can ensure safety by bringing about the stable operation of an electric compressor with a logic for protecting before an inverter element is damage...
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WO/2023/104639A1 |
The invention relates to a vacuum line (1) having a pumping device (3) comprising at least one rough vacuum pump (4) and a dilution device (5) configured to inject dinitrogen as dilution fluid into the flows of the gases pumped in the pu...
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WO/2023/103874A1 |
Provided in the present disclosure are fluid machinery, a heat exchange apparatus, and an operation method for fluid machinery. The fluid machinery comprises a crankshaft, a cylinder sleeve, a crossed groove structure and sliding blocks,...
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WO/2023/103398A1 |
An air compression acting device, comprising an inner casing (18) and a main shaft (1) axially arranged in the inner casing (18) in a penetrating manner, an intake turbine (4) and a screw-type air compressor (6) being sequentially arrang...
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WO/2023/103399A1 |
A screw compressor and an air-conditioning unit. The screw compressor comprises: a compressor body (3), which has a cavity (Q); a male rotor (1) and a female rotor (2), which are arranged in the cavity (Q) in parallel in the axial direct...
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WO/2023/104476A1 |
The invention relates to a vacuum line (1) comprising a pumping device (3) comprising at least one rough-vacuum pump (4). According to the invention, the vacuum line (1) comprises an injection system (5) for injecting suspended elements ...
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WO/2023/106223A1 |
A pipe assembly (60) comprises an inner pipe (70), an outer pipe (80), and a brazing material (61). The inner pipe (70) has an outer-peripheral-surface first portion (71) and an outer-peripheral-surface second portion (72). The inner pip...
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WO/2023/103871A1 |
A fluid machine and a heat exchange device. The fluid machine comprises a crankshaft (10), a cylinder sleeve (20), at least one end cover (100), a crossed groove structure (30), and sliding blocks (40); a first included angle A is formed...
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WO/2023/103872A1 |
Fluid machinery, a heat exchange apparatus, and an operation method for fluid machinery. The fluid machinery comprises a crankshaft (10), a cylinder sleeve (20), a crossed groove structure (30) and sliding blocks (40), wherein a first in...
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WO/2023/106648A1 |
The present invention relates to an electric compressor comprising: a motor which generates power; a compression mechanism which receives power transmitted from the motor to compress a refrigerant; and an inverter which controls the moto...
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WO/2023/098102A1 |
The present invention relates to a compressor rotor, a compressor pump body, a compressor, and a temperature-regulating system. The compressor rotor comprises a rotation shaft, and an eccentric rotor connected to the rotation shaft, wher...
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WO/2023/097898A1 |
A pump assembly and an enthalpy-increasing rotor compressor, the pump assembly comprising a cylinder (100), an integrated rotating shaft (200), a first bearing, a second bearing and a combined gas replenishment channel. The combined gas ...
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WO/2023/101123A1 |
In a rotary compressor according to the present embodiment, at least any one of a main bearing and a sub-bearing may have at least one axial-direction support part which extends from the outer circumferential surface of a back pressure p...
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WO/2023/096160A1 |
An electric compressor is disclosed. An electric compressor according to one embodiment of the present invention allows oil included in a refrigerant to be separated therefrom while the depth of a first groove part formed in an oil separ...
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WO/2023/095469A1 |
The objective of the present invention is to provide a liquid feed system for a compressor, capable of easily forming fine droplets of a liquid to be injected into the compressor. A liquid feed system 100 of a compressor 1 for compressin...
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WO/2023/093179A1 |
A compressor and an air conditioner. The compressor comprises: a housing (50); a first rotor (20) spaced apart from the housing (50), the first rotor (20) being capable of rotating along a first axis, and the first rotor (20) comprising ...
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WO/2023/092525A1 |
A method for judging the comprehensive performance of a twin-screw rotor profile, and a method for optimizing the design of a twin-screw rotor profile, which belong to the field of compressor design and manufacturing. By means of the met...
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WO/2023/090110A1 |
This compressor comprises: an oil level tank (60) that is provided adjacent to a housing (11) and measures the height of the surface of an oil in an oil reservoir; a pressure-equalizing pipe (62) that is connected at one end to an adjace...
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WO/2023/088046A1 |
A circulating pump and a clearance control method therefor. The circulating pump comprises a pump body (1), a driving shaft (11), a driven shaft (12), a driving gear (13), a driven gear (14), and a rotor (15). The rotor (15) comprises a ...
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WO/2023/090118A1 |
Provided is a compressor capable of reducing initial costs. This compressor comprises: a housing (11); a rotary shaft (15) which is accommodated in the housing (11) and rotates about an axis; a rotary compression mechanism which is conne...
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WO/2023/089750A1 |
This compressor is provided with: a container having an oil storage unit; a suction pipe that sucks a refrigerant from the outside of the container; a compression mechanism unit that is arranged inside the container and compresses the re...
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WO/2023/091044A1 |
The invention relates to delivery assemblies for rotary piston compressors. The present assembly contains a delivery bore configured in the housing of a compressor, said bore communicating by means of at least one delivery port with a wo...
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WO/2023/090148A1 |
Provided is a compressor capable of introducing as little oil as possible to a higher-side compressing mechanism. A compressor (1) comprises: a rotary compressing mechanism (12) connected to a lower end of a rotation shaft (15), and whic...
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WO/2023/090066A1 |
Provided is a compressor comprising a body (21) that accommodates an electric motor and a compression mechanism in a sealed space, a plurality of hermetic terminals (110, 120, 130) that are respectively inserted into a plurality of throu...
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WO/2023/090149A1 |
Provided is a compressor capable of reducing the vibration of an oil return pipe. A compressor (1) comprises: a housing (11) containing a rotation shaft (15), a scroll compression mechanism (13), and an upper bearing (31), and having an ...
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WO/2023/090081A1 |
[Problem] To suppress any reduction in the volume of a discharge chamber caused by the provision of an injection circuit, without relying on expansion of a housing. [Solution] A scroll-type compressor 1 comprising: an injection port 72 e...
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WO/2023/090676A1 |
The invention, which relates to a refrigerant compressor (1) for air-conditioning systems and to a method for operating a refrigerant compressor (1), is based on the object of specifying a solution with which safe functioning of a refrig...
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WO/2023/084938A1 |
A male rotor of a screw compressor has a cooling flow path extending axially inside a discharge-side shaft portion. A groove structure is provided in at least part of an area between the position of a discharge-side end surface of the ma...
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WO/2023/078598A1 |
A multistage vacuum pump (1) is provided with pumping stages (3a, 3b, 3c) respectively comprising an inlet (E) and an outlet (S), the pumping stages (3a, 3b, 3c) being mounted in series between a suction (4) and a discharge (5) of the va...
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WO/2023/080489A1 |
The present invention provides a vane rotary compressor including two compression units in which a suction stroke and a compression stroke are point symmetrical with respect to the center of rotation, wherein a plurality of vanes are gui...
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WO/2023/081134A1 |
A compressor includes a compression mechanism, a driveshaft, and a motor. The compression mechanism is configured to compress a fluid to a discharge pressure. The motor is configured to rotate the driveshaft. The driveshaft is engaged wi...
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WO/2023/081005A1 |
A compressor may include first and second scroll members, a driveshaft, first and second bearings, and first and second Oldham couplings. The scroll members define compression pockets. The first bearing may define a first rotational axis...
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WO/2023/074214A1 |
This compressor comprises: a casing (12); a motor (60) accommodated in the casing (12); and a compression mechanism (70) driven by the motor (60). A gas refrigerant discharged from the compression mechanism (70) forms a swirl flow in an ...
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WO/2023/072720A1 |
Dry vacuum pump (1) having a cooling device (10) configured to cool the stator (2), the cooling device (10) having a fluidic circuit (11) and at least one flow rate regulator (12) arranged in a regulation duct (15) of the fluidic circuit...
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WO/2023/074389A1 |
A suction check valve (80) comprises a valve body (81), a valve seat (85), and a compression spring (88). The valve body (81) includes a first bottom portion (82) and a first peripheral wall portion (83) vertically extending along the ci...
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WO/2023/074320A1 |
This compressor (20) comprises: a metallic tubular trunk (22); a stator core (32); and a resin member (60) fixed to an outer circumferential surface of the stator core (32). An oxide film (70) is formed on an inner circumferential surfac...
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WO/2023/065753A1 |
A bearing cylinder for a compressor, a compressor and an air conditioner. The bearing cylinder comprises an outer ring (1), a rolling body (2) and an inner ring (3), wherein the rolling body (2) can be arranged between the outer ring (1)...
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WO/2023/065754A1 |
An exhaust valve assembly, a compressor and an air conditioner. The exhaust valve assembly comprises: a flange (1) and an exhaust assembly. The flange (1) is provided with a valve seat (2), and the valve seat (2) is provided with an exha...
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WO/2023/060816A1 |
A low-pressure chamber rotary compressor and an air conditioner, the low-pressure chamber rotary compressor comprising a housing (100), a motor assembly and a pump body assembly. The housing (100) is provided with a low-pressure intake c...
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WO/2023/063243A1 |
A cylindrical main shell (11) that houses a compression mechanism unit (3) having a fixed scroll (31) and an orbiting scroll (32), a frame (2) for slidably holding the orbiting scroll (32), and a drive mechanism unit (4) for sliding the ...
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WO/2023/057832A1 |
Method for controlling an air-cooled device (1) for compressing a gas, which device comprises at least one element (2) for compressing the gas, at least one air-cooled cooler (9, 12) for cooling a fluid in the device (1) and two or more ...
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WO/2023/057833A1 |
A method for cooling an assembly (1) for compressing a gas containing a housing (2) having a plurality of elements for compressing gas, the method comprising: - allowing a cooling air flow (21) to flow from an environment into a first se...
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WO/2023/053578A1 |
This compressor unit comprises a compressor (1), and an accumulator (2) adjacent to the compressor (1). In a frequency range between a frequency of a numerical value that is three times the maximum rotation speed of the compressor (1) an...
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WO/2023/054841A1 |
A horizontal compressor according to an aspect of the present disclosure comprises: a case; a high/low pressure separator which divides the inner space of the case into a high pressure chamber and a low pressure chamber; a compressor whi...
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WO/2023/053093A1 |
An asymmetric scroll compressor includes a compressor housing. An orbiting scroll member and a non-orbiting scroll member disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member each includes...
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WO/2023/053672A1 |
In the present invention, a value F obtained by multiplying the weight of a piston (54) and a blade (57) by the square of the number of revolutions of a main compressor body (11), a distance h from the center of the thickness-direction o...
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