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Matches 1 - 50 out of 36,900

Document Document Title
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/2019/207760A1
This scroll compressor is provided with a shell which contains an orbiting scroll, and with a stationary scroll which is contained in the shell and which, together with the orbiting scroll, forms at least a first compression chamber and ...  
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/2019/207759A1
This scroll compressor is provided with: a frame which holds an orbiting scroll so that the orbiting scroll can orbit; a stationary scroll which, together with the orbiting scroll, forms a compression chamber which compresses a refrigera...  
WO/2019/207783A1
This scroll compressor is provided with: a fixed scroll that has a fixed baseplate provided with a first spiral protrusion; an orbiting scroll that forms, between the orbiting scroll and the fixed scroll, a compression chamber for compre...  
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/2019/207784A1
This scroll compressor is provided with a stationary scroll, an orbiting scroll, and a thrust plate. An oil holding space is formed on the inside of the thrust plate, a compression chamber is formed between the stationary scroll and the ...  
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/2019/207507A1
A positive-displacement compressor (1) having an automatic system for adjusting the compression ratio (Vi) and designed to be installed in a conditioning or refrigeration system for a fluid (F), said compressor (1) comprising a suction c...  
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/2019/207839A1
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/2019/208075A1
A first distance (D1) between a pair of linear portions (64, 65) in which first Oldham keys (57, 58) are respectively arranged is configured so as to become shorter than a second distance (D2) between a first connecting portion (67) in w...  
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/2019/202297A1
A multi-stage positive displacement vacuum pump and a method of differentially pumping multiple vacuum chambers using such a pump is disclosed. The pump comprises a housing for housing at least one rotor mounted for rotation on a corresp...  
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/2019/197919A2
Fluid-injected compressor installation (1) which is provided with: - a screw compressor (2) with a compression housing (4) in which a pair of compressor rotors (6a, 6b) are mounted; - a drive motor (3) with a motor housing (9) in which a...  
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/2019/186374A1
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/2019/189085A1
Provided is a technology which makes it possible, in a gas compressor that generates compressed gas of a set pressure by constant velocity control, to reduce more power during "unload operation control". This gas compressor is provided w...  
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/2019/187686A1
This compressor is provided with: a rotating shaft; a front rotor which has a front rotor surface; an intermediate wall section which has a first wall surface facing the front rotor surface in an axial direction; and a vane which is inse...  
WO/2019/188322A1
The objective of the present invention is to prevent a deterioration in the strength of a screw rotor having a hollow portion, and improve cooling performance. This screw rotor has, on an outer circumference, helical teeth which extend a...  
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/2019/188323A1
The effects of pressure and heat are reduced while the mass of a screw rotor is reduced. The outer periphery of this screw rotor has helical teeth extending a predetermined length in the axial direction, wherein a diametral cross-section...  
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/2019/180900A1
The compression mechanism of this hermetic compressor has a hollow cylinder, a crankshaft which is rotated by an electric motor, a rolling piston which is fitted to the eccentric shaft of the crankshaft and which rotates eccentrically al...  
WO/2019/183262A1
The present disclosure relates to a bearing load control system that includes a force application device configured to apply a force to a bearing of a compressor and a sensor configured to provide feedback indicative of an operating para...  
WO/2019/179723A1
The invention relates to a scroll compressor (10) with a housing composed of multiple sub-housings (12, 14, 16), comprising - a motor sub-housing (12) which is equipped with a drive motor with a stator (20) fixed to the housing and a coa...  
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/2019/175267A1
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/2019/174596A1
A double-stage screw compressor and a compression method, the compressor comprising a main body (3), a low-pressure stage drive (1) and a high-pressure stage drive (2); the main body (3) comprises a low-pressure stage shell (11), a high-...  
WO/2019/171540A1
This rotary compressor is provided with a compression mechanism section which is lubricated by lubricating oil. The compression mechanism section includes: a first bearing and a second bearing, which are arranged at a distance from each ...  
WO/2019/171076A1
A rotor for a vacuum pump and a vacuum pump comprising the rotor are disclosed. The rotor comprises: an outer profile; at least one body within the outer profile mounted such that it is movable between an inner position towards a centre ...  
WO/2019/171562A1
Provided is a scroll-type fluid machine in which cooling wind is allowed to flow efficiently using a simple shape of cooling wind passageway, thereby increasing reliability without reducing productivity. Accordingly, the scroll-type flui...  
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/2019/171448A1
This double-rotating scroll compressor is provided with: a driving-side scroll member (7); a driven-side scroll member; a motor which rotationally drives the driving-side scroll member (7); and a pin-ring mechanism (15) which transmits d...  
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/2019/171074A1
A vacuum pump comprising: at least two rotors each comprising at least one lobe, the at least two rotors being mounted within a stator; at least one of the lobes comprising an inertial pressure relief valve, the inertial pressure relief ...  
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...  

Matches 1 - 50 out of 36,900