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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...
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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...
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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...
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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 ...
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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...
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WO/2019/171075A1 |
A rotor and vacuum pump are disclosed for a vacuum pump. The rotor comprises: an outer profile and a hollow inner portion; at least one body within the hollow inner portion; and body constraining means for constraining the body. The at l...
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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...
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WO/2019/167163A1 |
The rolling cylinder-type displacement compressor according to the present invention is provided with: a cylindrical rolling cylinder having a cylinder groove; a revolving piston having a slide groove; a stationary cylinder; a pin struct...
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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...
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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...
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WO/2019/168279A1 |
An electric compressor according to the present invention comprises: a casing for accommodating a main frame and a rotary shaft; a driving unit for rotating the rotary shaft; and a compression unit having a first scroll fixed to the casi...
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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...
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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...
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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...
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WO/2019/163309A1 |
This scroll fluid machine is provided with a first scroll member which comprises a spiral first wall provided on a first end plate, and a second scroll member which comprises a spiral second wall provided on a second end plate arranged s...
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WO/2019/163939A1 |
A recess (37) which is recessed in the direction away from the outer peripheral surface (18c) of a rotor (18) is provided to the inner peripheral surface (14c) of a cylinder (14), and the recess (37) extends such that one-side end of the...
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WO/2019/163321A1 |
A wall (18b) comprises multiple wall inclined sections (18b2, 18b4, 18b6) in which the height of the wall (18b) changes continuously in the spiral direction of the wall (18b). An end plate (18a) comprises multiple end plate inclined sect...
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WO/2019/163323A1 |
In a scroll compressor (1) provided with a fixed scroll (3) and an orbiting scroll (5), an inclined section is provided in which the facing-surface distance (L) between an end plate (3a) and an end plate (5a) that face each other decreas...
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WO/2019/163332A1 |
On an end plate of a fixed scroll, an end plate inclined section (3a1) is provided in which a tooth bottom surface opposite of a tooth tip of a wall inclined section is inclined in accordance with the incline of the wall inclined section...
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WO/2019/163409A1 |
The present invention has improved oil separation performance. The present invention is provided with: a secondary separation chamber 42 configured so that, when a heat medium containing oil flows into an inner space extending in a top-b...
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WO/2019/163331A1 |
In a scroll compressor (1) provided with a fixed scroll (3) and an orbiting scroll (5), an inclined section is provided in which the facing-surface distance (L) between an end plate (3a) and an end plate (5a) that face each other decreas...
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WO/2019/163322A1 |
This scroll fluid machine is provided with a wall inclined section (3b1) which continuously decreases, and a wall flat section (3b2) provided on the innermost peripheral portion of the wall (3b) and which does not vary in height. At the ...
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WO/2019/163536A1 |
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...
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WO/2019/141767A3 |
A method of operating an exhaust gas recirculation pump for an internal combustion engine including: providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump operably connected to a...
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WO/2019/068273A4 |
The compressor (1) for the transport of gases is fitted with a vane wheel (2) enclosed in a cover (4). The cover (4) is equipped with at least one entry duct (5) and at least one exhaust duct (6). The bases (7) of the vane wheel (2) are ...
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WO/2019/163628A1 |
The purpose of the present invention is to provide a scroll fluid machine that can reliably introduce an intermediate-pressure refrigerant during a compression step and thus can improve compressor efficiency. In the present invention, a ...
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WO/2019/163537A1 |
This scroll compressor (1) comprises a fixed scroll (18) and an orbiting scroll (19). A first region is configured in which, after sealing of a compression chamber (20) has started, capacity change of the compression chamber (20) becomes...
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WO/2019/158489A1 |
A device for compressing and/or displacing a fluid (1), comprising a circular-cylindrical working chamber (2), at least two displacement elements (6) provided in the working chamber (2) and at least two interspaced inlet and outlet openi...
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WO/2019/155572A1 |
In a thrust bearing part of a compliant frame of a scroll compressor, a sliding surface that slides against a rocking scroll is formed on the thrust bearing, and formed in the compliant frame is an oil passage that joins together an oil ...
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WO/2019/153873A1 |
A screw compressor rotor structure and a variable-frequency screw compressor having the same. The screw compressor rotor structure comprises a female rotor, the female rotor comprising a female rotor body (10); a plurality of female toot...
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WO/2019/155516A1 |
This compressor is provided with: a shell; a compression mechanism unit which is accommodated in the shell and configures a compression chamber for compressing a refrigerant, and in which a discharge port for discharging the refrigerant ...
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WO/2019/149030A1 |
Provided is a high-pressure pneumatic machine, comprising a cylinder (4), a rotor (5) and a high-pressure air storage tank, wherein the rotor (5) is rotatably mounted inside the cylinder (4) by means of a support shaft and is arranged co...
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WO/2019/150421A1 |
In the present invention, an injection passage for supplying refrigerant to a refrigerant suction chamber is formed on a first base plate of a fixed scroll of a scroll compressor, the injection passage has an outlet passage that is open ...
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WO/2019/148954A1 |
A multi-stage roots dry vacuum pump, comprising a pump body (1) and an electric drive terminal, wherein the pump body (1) at least comprises a primary Roots system, and the Roots system at least comprises a primary Roots working unit (2)...
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WO/2019/148947A1 |
A compression mechanism (100) and a compressor comprising same. The compression mechanism (100) comprises: a cylinder (10) having a first working chamber (11), a slide vane slot (12), and an air valve slot (13), the first working chamber...
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WO/2019/150680A1 |
In order to provide a double rotating scroll-type compressor provided with a synchronous drive mechanism that can achieve a long lifespan, the present invention is provided with: a driving-side scroll member (90) that is rotationally dri...
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WO/2019/145680A1 |
The present disclosure relates to scroll vacuum pumps and to an arrangement for cooling scrolls in scroll vacuum pumps. A scroll vacuum pump (10) comprises a scroll mechanism having first and second intermeshing scrolls (12, 14) that cau...
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WO/2019/146615A1 |
An assembly device (1) inserts a disc-shaped main frame (91), to which is secured a main bearing rotatably supporting a shaft having a rotor, and a disc-shaped sub frame (92) to which a sub bearing is secured into a radially inward side ...
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WO/2019/145677A1 |
A scroll pump comprising two interleaving scrolls mounted on parallel offset axes is disclosed. The interleaving scrolls are mounted for relative orbital rotation, such that at least one scroll is mounted to rotate about an axis offset w...
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WO/2019/146031A1 |
The objective of the present invention is to provide a sealed rotary compressor which achieves a reduction in leakage loss into a cylinder from sliding gaps along which a vane that abuts an outer circumference of a roller which rotates e...
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WO/2019/142674A1 |
Provided is a scroll compressor, comprising: in a turning scroll (50), a turning side mirror plate part (51); and a turning side wrap (60). A back surface recess (70) is formed in the turning side mirror plate part (51). The back surface...
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WO/2019/142460A1 |
A housing (30) has a first frame (31) and a second frame (32) which is disposed between an Oldham's ring (60) and the first frame (31). The Oldham's ring (60) is provided with a key (62) protruding to the second frame (32) side. The surf...
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WO/2019/141766A1 |
Exhaust gas recirculation pump (30) for an internal combustion engine that includes an electric motor (32) disposed within a housing (36). A Roots device (38) is coupled to the electric motor (32) and includes a housing (40) defining an ...
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WO/2019/141767A2 |
A method of operating exhaust gas recirculation pump for an internal combustion engine including: providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump operably connected to an i...
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WO/2019/142258A1 |
This scroll compressor is provided with a moveable frame, wherein a valve chamber and a regulating valve are provided in the moveable frame. The valve chamber has an intermediate-pressure chamber, a high-pressure chamber, and a low-press...
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WO/2019/142315A1 |
This rotary compressor comprises, within a hermetic container, an electric motor section, and a compression mechanism section in which a refrigerant is compressed by a drive force transmitted from the electric motor section. The compress...
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WO/2019/139484A1 |
The invention relates to a rotary sliding vane machine (1) for fluid processing, comprising a housing (2) with a cavity (4) with a rotor (9). Vanes (12) are arranged in outwardly directed slots (13) in the rotor (9), and relative sliding...
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WO/2019/137700A1 |
The disclosure relates to a vacuum pump (1; 30) of dry type comprising: • -two shafts (6, 7) respectively bearing at least one pump rotor (8), the pump rotors (8) being configured to rotate synchronously in opposite directions to carry...
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WO/2019/139485A1 |
The invention relates to a rotary sliding vane machine (1) for fluid processing, comprising a housing (2) with a cavity (4) with a rotor (9). Vanes (12) are arranged in outwardly directed slots (13) in the rotor (9), and relative sliding...
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WO/2019/137852A1 |
A dry-running rotary-screw compressor comprises two screw rotors in a housing (26) that forms a suction chamber. Preferably atmospheric pressure is applied to a compressor inlet (28) of the compressor and preferably a pressure of more th...
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