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Patent Searching and Data


Matches 301 - 350 out of 37,692

Document Document Title
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 ...  
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...  
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...  
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 ...  
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...  
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 ...  
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...  
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 ...  
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)...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2019/138553A1
In a scroll compressor (1) according to the present invention, a compression chamber (RC) is formed between a fixed scroll (40) and an orbiting scroll (30) due to meshing of an orbiting lap (32) and a fixed lap (42). The scroll compresso...  
WO/2019/134869A2
The invention relates to a compressor (100), in particular a screw compressor, for generating compressed air and to a method for controlling such a compressor (100). The compressor (100) comprises a compressor block (4) with liquid injec...  
WO/2019/135083A1
A compressor or expander (100) comprises two opposed end faces (106), at least four rotors ( 102) arranged in a group to form an enclosed volume (104) additionally bounded by the end faces (106), and a valve in fluid communication with t...  
WO/2019/134364A1
A compressor crankshaft (1) and a compressor (2) having the same, wherein the crankshaft (1) comprises: a shaft body (11); an eccentric portion (12), which is formed at an appropriate distance from a lower end of the shaft body (11), whe...  
WO/2019/128793A1
A one-way valve and a scroll compressor. The one-way valve (200) comprises: a valve plate (210) on which a valve opening (212) for a fluid to pass is provided; a valve reed (220) arranged above the valve plate (210) and constructed to se...  
WO/2019/132666A1
A sealing arrangement for a sliding vane machine for compressing or expanding a fluid, for sealing between a rotating plane surface on a rotor and a machine housing to prevent flow of process fluid between an internal volume to an extern...  
WO/2019/119751A1
Provided are a pump body assembly and an assembly method therefor. The pump body assembly comprises a first cylinder assembly (10), a second cylinder assembly (20) and a third cylinder assembly (30) sequentially arranged in the vertical ...  
WO/2019/123026A1
The present invention concerns a screw compressor structure (10), particularly for refrigerating circuits, comprising: a containment body (11), comprising: an intake mouth (12) for a fluid to be compressed, a discharge mouth (13) for a c...  
WO/2019/123737A1
This scroll component is provided with a fixed scroll made of an aluminum alloy and an oscillating scroll made of an aluminum alloy, wherein the fixed scroll and/or the oscillating scroll is provided with: an iron-based plating layer for...  
WO/2019/119503A1
A method for modifying performance of a rotor profile by adjusting meshing line segments, comprising the following steps: step 1, dividing a meshing line of a bilateral profile into 8 functional segments; step 2, constructing each functi...  
WO/2019/122870A1
A scroll pump anti-rotation device for resisting relative rotational movement between two scrolls and a scroll pump comprising such a device is disclosed. The anti-rotation device comprises : an elongate member forming an inner ring; an ...  
WO/2019/123609A1
This hermetic compressor is provided with: a hermetic container in which a refrigerant suction pipe is connected to a cylindrical body section; and a compression element contained in the hermetic container, the compression element having...  
WO/2019/124291A1
[Problem] To reduce noise and vibration of a compressor by stably seating, on a block support surface formed in an inner peripheral surface of a housing, a block member provided between a compression mechanism and an electric motor that ...  
WO/2019/124880A1
A screw compressor of the present invention comprises: a housing having a compression chamber; male and female rotors provided in the compression chamber; a driving shaft for rotating the male and female rotors; and a seal cover across w...  
WO/2019/124045A1
A liquid supply mechanism (10) has: a plurality of liquid supply sections (1) each provided with a plurality of branch flow passages (3a, 3b, or 4a, 4b) having intersecting center axes; and a supply flow passage (5) for supplying to the ...  
WO/2019/115716A1
A super charger assembly includes a supercharger having a housing including an air inlet and an air outlet linked by an air chamber. Rotors are disposed in the air chamber. At least one port is formed in the supercharger housing between ...  
WO/2019/115897A1
Scroll-type positive-displacement machine comprising: a first, fixed structure (2) formed by a first transverse disk-shaped end plate (2001), of which one of the surfaces forms a scroll base from which rises a wall defining a first scrol...  
WO/2019/116435A1
The present invention relates to a scroll compressor (1) in which a compression chamber (RC) is formed between a fixed scroll (40) and an orbiting scroll (30) due to an orbiting lap (32) and a fixed lap (42) engaging with each other. At ...  
WO/2019/111661A1
This liquid-feeding screw compressor is provided with: a casing that accommodates a screw rotor and a bearing, and that has an air intake and an intake chamber connected to the air intake; an intake throttle valve that is installed at th...  
WO/2019/112159A1
The present invention relates to an electric compressor capable of fixing a shaft seal without a fixing retainer of the shaft seal, the electric compressor comprising: a shaft (300) rotatably coupled inside a main housing (100a); and a s...  
WO/2019/111650A1
The present invention effectively cools air in a compression process at a high stage when oil is supplied with equal pressure at a low stage and the high stage. This liquid-cooling type compressor provided with: a liquid-cooling type com...  
WO/2019/109703A1
A scroll compressor and an air conditioner provided with the same. The scroll compressor comprises a movable plate (10) and a static plate (20). The movable plate (10) engages with the static plate (20) to form compression cavities. Ther...  
WO/2019/109609A1
A compressor and an air conditioner are provided herein. The compressor comprises a main shaft (1), a first cylinder (2), and a second cylinder (3). The main shaft (1) sequentially passes through the first cylinder (2) and the second cyl...  
WO/2019/110611A1
The disclosure relates to rotating devices having at least one rotor (3) and a rotor bearing part, at least for receiving, conveying, compressing, expanding, expanding, igniting and/or combusting a working fluid or at least for pumping, ...  
WO/2019/104811A1
Disclosed are a screw compressor, an air conditioning device, and a volume efficiency adjusting method for the screw compressor. The screw compressor comprises a body (1), a female rotor (2), a male rotor (3) and an atomization structure...  

Matches 301 - 350 out of 37,692