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Matches 1 - 50 out of 30,308

Document Document Title
WO/2019/214239A1
A secondary vibration reduction device of a compressor, and an air conditioner having same. The air conditioner comprises a secondary vibration reduction device of a compressor. The secondary vibration reduction device of a compressor co...  
WO/2019/216098A1
This scroll compressor has different discharge timings for a first compression chamber (S21) on the inner peripheral side of a fixed wrap (62) and a second compression chamber (S22) on the outer peripheral side, and has oil inflow groove...  
WO/2019/212598A1
A scroll device has a fixed scroll, and orbiting scroll, and at least one cooling chamber configured to receive coolant to cool the fixed scroll or the orbiting scroll. A flexible conduit that curves around an orbital axis of the orbitin...  
WO/2019/208951A1
A scroll compressor according to the present invention comprises: a casing; a rotation shaft positioned inside the casing; a driving unit configured to rotate the rotation shaft; and a compression unit including a first and a second fixi...  
WO/2019/208031A1
Provided are a fluid machine with which it is possible to increase abrasion resistance and extend maintenance cycle, and a machine element and a fluorine resin material for use therein. The machine element comprises a member (31) having ...  
WO/2019/207785A1
Provided is a scroll compressor to which an injection pipe is connected. The scroll compressor is provided with: a stationary scroll which has a first base plate and a first spiral body; an orbiting scroll which has a second base plate a...  
WO/2019/207617A1
This scroll compressor is configured so that a refrigerant gas once taken into a hermetic container is compressed in a compression chamber. A second base plate section of an orbiting scroll has formed therein: an annular groove open to a...  
WO/2019/205666A1
A compressor, an air conditioner, and a control method for a compressor. The compressor comprises a main housing (10), an oil sump (20), a gas discharge port, an oil discharge pipe (30), and a flow regulator (40). The oil sump (20) is fo...  
WO/2019/208348A1
A rotor that provides a rotating power to a compressor unit for compressing a refrigerant comprises: a rotor core having formed through-holes (36-1 to 36-6) that have cross sections with a plurality of crotches in a direction away from a...  
WO/2019/210053A1
A screw compressor includes a housing, a first rotor rotatable about a first axis relative to the housing, and a second rotor rotatable about a second axis relative to the housing. The second rotor is enmeshed with the first rotor. A mot...  
WO/2019/207945A1
An internal liquid pathway in this liquid supply type screw compressor includes a slit-like injection section open to a bore and injecting liquid into an operating chamber. A casing is provided with a first casing and a second casing whi...  
WO/2019/205580A1
A mounting and supporting apparatus for a screw compressor, said apparatus comprising a fixing base (1), a first fixing frame (2) and a second fixing frame (3), the inside of the fixing base (1) being provided with an engagement groove (...  
WO/2019/207839A1
A pump device according to an embodiment of the present invention is provided with a fluid passage. The fluid passage has a first connection opening which is provided at a second end of a housing, a second connection opening which is pro...  
WO/2019/208079A1
A compressor (10) is provided with a motor (30), a lower balance weight (133a), and partitions (133b, 133s). The motor (30) has a rotor (132) having a first end surface (E1) and a second end surface (E2). The balance weight (133a) is pro...  
WO/2019/202976A1
Provided is a compressor with high compression efficiency provided by increasing the design freedom with respect to the position for connecting the introduction path and injection path of an injection flow path, improving manufacturabili...  
WO/2019/200945A1
A compressor, a refrigeration circulation system, and an air conditioner. The compressor comprises a housing (1), a first-level compression component (2), a second-level compression component (3), and a communicating pipe (4). The housin...  
WO/2019/202682A1
This oil separator comprises a tubular outer tube part, a tubular inner tube part provided to the interior of the outer tube part, an oil storage part that is provided below the outer tube part and stores oil, a partitioning plate that d...  
WO/2019/197913A1
The present invention is directed to a multi-stage compressor unit (1) comprising at least a first compressor stage (2) comprising a first compressor element (5) driven through a first gear-transmission (9) and a second compressor stage ...  
WO/2019/198326A1
This rotary compressor has: a closed, vertically disposed, circular cylindrical compressor housing which is provided with a refrigerant discharge section and a refrigerant suction section, and the lower part of which contains lubricating...  
WO/2019/197927A1
Oil-injected screw compressor installation including a frame or underframe (2), a screw compressor element (3), electrical cabinet (6), oil separator vessel (5) and an air-cooled cooling module (8), with as characteristic that on one sid...  
WO/2019/198229A1
Provided is a compressor in which a compression mechanism for compressing a fluid is fixed to an internal circumferential surface of a sealed container, wherein, in the compression mechanism, a plurality of protrusions extending in the c...  
WO/2019/198932A1
An electric compressor according to the present invention comprises: a drive motor having a stator and a rotor; a rotary shaft coupled to the rotor to transmit the rotational force of the drive motor; a frame through which the rotary sha...  
WO/2019/193127A1
The rotary pump (1) comprises a driving element (4) housed in a rotor housing (31). The driving element (4) comprises a contact portion (41) comprising an spherical zone and at least one lateral driving protrusion (42) extending from sph...  
WO/2019/192913A1
The invention relates to a dry-type vacuum pump (1) comprising: at least one oil sump (2); at least one pumping stage (3e); two rotating shafts (4) each bearing at least one rotor (5) extending inside the at least one pumping stage (3e),...  
WO/2019/194126A1
A compressor (10) comprises a casing (20), a compression mechanism (40), a first ferrous member (20b), a first copper pipe (73), a refrigerant flow path member (72), and a sealing member (74). The casing (20) has an opening (20a). The co...  
WO/2019/186374A1
Screw compressor element provided with a housing wherein a rotor is rotatably arranged by way of two bearings, respectively being a cylinder bearing (3) and a ball bearing (4), each provided with an inner ring (5, 6) and an outer ring (7...  
WO/2019/187950A1
In a pre-stage machining step of a scroll compressor (10), which is a scroll fluid machine, a revolving scroll machining step and a housing machining step are performed. In a measuring step, dimensional deviations are measured in a revol...  
WO/2019/186800A1
This hermetic compressor is provided with: a hermetic container serving as an outer shell; a compression mechanism installed within the hermetic container and compressing, within a compression chamber, a sucked-in fluid; a discharge open...  
WO/2019/189315A1
Provided is a highly reliable scroll compressor (10). The scroll compressor (10) comprises a case (20), a scroll compressor mechanism (50), a discharge pipe (24), a first temperature sensor (15), and a second temperature sensor (25). The...  
WO/2019/186695A1
This rotary shaft for a rotary compressor comprises a first coupling shaft part, which extends between a first crank part and a second crank part, and a second coupling shaft part, which extends between the second crank part and a third ...  
WO/2019/187272A1
Provided is a rotary compressor in which a supply amount of an oil through an oil supply hole can be appropriately adjusted with a simple configuration. The present invention is provided with, inside a sealed container (10): a drive moto...  
WO/2019/181244A1
Provided are a compressor and a heat pump system capable of switching an injection state in response to an operating condition with a simple configuration. The compressor is provided with at least a suction unit, a compression unit, and ...  
WO/2019/180779A1
This compressor draws up oil in an oil reservoir space through an oil supply path formed in a driving shaft and supplies the oil to a main bearing. A portion, of the driving shaft, supported by the main bearing is configured to have a ta...  
WO/2019/181245A1
Provided is an injection control method with which it is possible to simultaneously achieve an improvement in coefficient of performance (COP) and a back pressure load/compression reactive force balance of a scroll compressor in a refrig...  
WO/2019/176475A1
Provided is an electric compressor that enables an electric potential difference generated between two adjacent housings to be reduced in a stable manner. An electric compressor 1 comprises: a compressing mechanism that compresses a refr...  
WO/2019/176014A1
The purpose of a compressor according to the present invention is to provide a compressor which has a reduced internal volume while ensuring an electric insulation distance between an electric motor and a compression mechanism and inhibi...  
WO/2019/175267A1
The invention relates to a rotary piston engine comprising a housing (1) spatially limiting a working chamber (2) , an intake connection (4) for guiding gas into the working chamber (2), a pressure connection (6) for guiding the gas out ...  
WO/2019/175818A1
A method for decoupling a liquid ring pump component (22) from a liquid ring 5 pump (2) for facilitating maintenance services, the liquid ring pump (2) comprising a housing (4) defining an annular chamber and a shaft (8) passing into the...  
WO/2019/169922A1
A screw compressor and an air conditioning unit. The screw compressor comprises a first pressure-level rotor assembly (1), a second pressure-level rotor assembly (2), and a machine body (3). The first pressure-level rotor assembly (1) co...  
WO/2019/171508A1
Provided is a rotary compressor according to the present invention comprising a first injection flow path for injecting a refrigerant into a first compression chamber, a second injection flow path for injecting a refrigerant into a secon...  
WO/2019/170610A1
Vacuum pump with a rotor with at least one vane housed in a pump chamber, having fluid extraction flow prevented from being blocked by means of an outlet assembly comprising at least a first outlet conduct (100) with a first inner apertu...  
WO/2019/169443A1
A rotary fluid device including an outer housing assembly and an inner rotating arrangement adapted to rotate relative to the outer housing assembly, the outer housing assembly including a rotor housing and the inner rotating arrangement...  
WO/2019/171427A1
This compressor is provided with: a compression mechanism section disposed within a hermetic container; an electric motor section which drives the compression mechanism section; a drive shaft which transmits the drive force of the electr...  
WO/2019/168526A1
In some examples, a scroll compressor may include an orbiting scroll and a fixed scroll having spiral involutes intermeshed together. A slider block may be disposed on the eccentric portion of a main shaft and the slider block may be att...  
WO/2019/168386A1
A scroll compressor according to the present invention comprises: a rotating shaft and a driving unit positioned inside a casing; a compression unit comprising a first fixed scroll and a second fixed scroll, which are fixed to the casing...  
WO/2019/166311A1
In order to improve reliable and efficient operating behavior during compression of water vapor as R718, particularly for refrigeration, air conditioning and heat pump technology, while simultaneously reducing construction volume and red...  
WO/2019/167574A1
In this rotary compressor, the height of an upper piston in the axial direction of a rotating shaft is greater than the length of an upper eccentric section in the axial direction of the rotating shaft, and the height of a lower piston i...  
WO/2019/163308A1
A tip seal groove (3d) is formed in a tooth tip of a fixed scroll, and a tip seal (7) is accommodated therein. A step (9a) is provided in a tooth bottom corner (9) at the base of a wall (5b) of an orbiting scroll, said tooth bottom corne...  
WO/2019/163516A1
The purpose of the present invention is to provide a scroll fluid machine in which an intermediate-pressure refrigerant can be reliably introduced during a compression step and which can improve compressor efficiency. This scroll compres...  
WO/2019/163237A1
This hermetic compressor is characterized in that: an electric motor section 20 and a compression mechanism section 30 are provided within a hermetic container 10; the electric motor section 20 and the compression mechanism section 30 ar...  

Matches 1 - 50 out of 30,308