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WO/2022/153364A1 |
The present invention addresses the problem of providing a rotary heat pump the size of which can be reduced in comparison to current rotary heat pumps. As a means to solve this problem, a rotary heat pump (100) is provided with: a rot...
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WO/2022/153714A1 |
The present invention addresses the problem of providing a rotary heat pump in which a lubricating oil is prevented from being retained in a bypass path which connects expansion regions. As a solution, this rotary heat pump (100) is pr...
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WO/2022/149482A1 |
This oil-cooled compressor 1 comprises a compressor body 10, an oil reservoir part 21, a motor 26, and bearings 41A, 42A. The compressor body 10 has a casing 13 that forms a rotor chamber 14 in which a screw rotor pair 12 is accommodated...
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WO/2022/149198A1 |
This scroll compressor comprises: a fixed scroll obtained by forming a fixed spiral body on a fixed bedplate; and an oscillating scroll obtained by forming an oscillating spiral body on an oscillating bedplate. A compression chamber for ...
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WO/2022/148670A1 |
Pumping stage (1) of a dry vacuum pump (100), having two rotors (3, 4) respectively having at least two lobes having helical torsion (a) about a longitudinal axis (l-l), the inlet (7) and the outlet (8) being provided in cylindrical peri...
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WO/2022/149038A1 |
Method of communicating ballast gas to a rotary vane vacuum pump and rotary vane vacuum pump (300) comprising a gas ballast assembly (330). The gas ballast assembly (330) comprises a gas ballast passage fluidly connected to a stator cham...
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WO/2022/149184A1 |
This two-stage scroll compressor is provided with a shell (11), a drive mechanism unit (37), a low-pressure side compression mechanism unit (35) disposed on the upper side of the drive mechanism unit, a high-pressure side compression mec...
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WO/2022/148744A1 |
Dry vacuum pump (1) comprising a stator (2) and two rotors (5) housed in at least one compression chamber (3) of the stator (2), the rotors (5) being configured to rotate in synchronism in opposite directions in order to drive a gas that...
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WO/2022/149225A1 |
A compressor that comprises a shell that forms an outer hull, a motor that is provided inside the shell, a shaft part that is attached to the motor and transmits rotational force from the motor, a fixed scroll that is fixed inside the sh...
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WO/2022/145603A1 |
A scroll compressor having an orbiting scroll and an Oldham ring is disclosed. According to various embodiments of the present invention, if an orbiting scroll and an Oldham ring are made from the same material, the orbiting scroll has a...
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WO/2022/144593A1 |
The present invention discloses a compressor 1 comprising: a vessel 10; a crankshaft 36 including an annular mounting recessed groove 36c which is formed on its outer circumferential surface; a compression mechanism 20 disposed over the ...
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WO/2022/145185A1 |
This method is for manufacturing a scroll compressor (101) provided with: a compression mechanism part (3) having a fixed scroll (31) and an oscillation scroll (32); and a main frame (2) that slidably holds the oscillation scroll (32). T...
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WO/2022/134339A1 |
A cam-driven vane compressor and a usage method therefor. The compressor comprises a cylinder liner (1), a disc-shaped compartment (2), an end cam (3), an end cover (4), an oil seal bearing (5), a spline shaft and an adjuster; the end ca...
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WO/2022/136157A1 |
A scroll compressor for generating oil-free compressed air, in particular for a compressed air brake system of a lorry, with a drive which is arranged in a housing (4) and is connected to an orbiting displacer scroll (31, 32) which has a...
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WO/2022/137923A1 |
[Problem] To reduce imbalance in all components of a movable system including a drive shaft and a component fixed or linked to the drive shaft in a scroll-type compressor. In the scroll-type compressor 10, a shaft balancer 31 integrated ...
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WO/2022/134340A1 |
A rotating and swinging-driven vane compressor, comprising a machine base (1), a cylinder body (2) supported on the machine base (1), a rotor (3), vanes (4), end covers (5), and an air inlet (6) and an exhaust port (7) respectively conne...
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WO/2022/127768A1 |
A scroll compressor (100), comprising: a housing (110), a low pressure region (LR) in air suction pressure being defined within the housing; a compression mechanism (CM), the compression mechanism being disposed within the housing and co...
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WO/2022/129009A1 |
The present invention provides a method of ceasing rotation of a rotor of a vacuum pump. The method comprises the steps of rotating the rotor at an intermediate RPM, at which there is substantially no probability of the rotor clashing wi...
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WO/2022/130893A1 |
[Problem] To suppress a decrease in a rotational moment generated in an orbiting scroll. [Solution] A scroll-type compressor 10 is provided with a fixed scroll 51, an orbiting scroll 52, a rotation preventing mechanism 300, and a back pr...
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WO/2022/121148A1 |
A compressor pump body and a compressor. The compressor pump body comprises a first bearing (10), a second bearing (20), an air cylinder component (30), a piston (60), a crankshaft (40), and an oil pumping cover (50); the oil pumping cov...
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WO/2022/123657A1 |
Provided is a highly reliable scroll compressor, etc., having a simple configuration. This scroll compressor (100) comprises: a sealed container (1); an electric motor (4); a crankshaft (3); a fixed scroll (21); a turning scroll (22); an...
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WO/2022/124707A1 |
The prevention invention relates to an electric compressor for a vehicle, and provides an electric compressor structure for a vehicle, wherein an electrical connection structure between a sealing terminal connecting an inverter unit to a...
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WO/2022/116566A1 |
A screw compressor and an air conditioning system. The screw compressor comprises a housing (3) and a rotor assembly; the rotor assembly is rotatably arranged in the housing (3), to compress refrigerant in a cavity between the housing (3...
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WO/2022/116577A1 |
A pump body assembly and fluid machinery, the pump body assembly comprising: an air cylinder assembly, which comprises an air cylinder (10), a roller (20) and a sliding piece (30), wherein the air cylinder (10) is provided with an inner ...
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WO/2022/119048A1 |
The present invention relates to a rotary piston air compressor, and to a rotary piston air compressor with a simple structure and easy maintenance by configuring a compression part that compresses air by means of rotation and displaceme...
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WO/2022/112341A1 |
Discharge check valve assembly (18) including a tubular valve housing (21) having a first end portion (21.1) configured to be arranged inside a compressor shell (2) and a second end portion (21.2) configured to be arranged outside the co...
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WO/2022/112229A1 |
A dry vacuum pump (1) having at least one pumping stage (3a-3e), two rotors (7) configured to turn in the at least one pumping stage (3a-3e), the rotors being configured to be rotated by at least one motor (9) of the vacuum pump (1), at ...
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WO/2022/112336A1 |
The counterweight (26) for a scroll compressor is manufactured by an additive manufacturing process and comprises a mounting portion (28) having a first density and a mass portion (29) having a second density, the mass portion (29) being...
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WO/2022/113558A1 |
The present invention enables satisfactory supply of lubricant to a bearing supporting an eccentric bush. A scroll compressor (100) comprises a fixed scroll (122) fixed to a housing (140), an orbiting scroll (124) executing an orbiting m...
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WO/2022/113559A1 |
A decrease in a rotation moment generated in a movable scroll is minimized. A scroll compressor (1) comprises a fixed scroll (2), a movable scroll (3), and a rotation prevention mechanism (30). A spiral movable wrap (3b) of the movable s...
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WO/2022/108232A1 |
The invention relates to a scroll compressor (1) for refrigerant-oil mixtures with oil return, comprising a housing element (2) and a fixed scroll (3), wherein the housing element (2) is connected to the fixed scroll (3) by means of a se...
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WO/2022/105304A1 |
A pump body assembly, comprising a crankshaft (1). The crankshaft (1) comprises a first eccentric portion (12), a support shaft (13), and a second eccentric portion (15) which are axially disposed at intervals; a first partition plate (6...
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WO/2022/106085A1 |
Dry vacuum pump (1) comprising: - a stator (2) having at least one compression chamber (3) into which the gases to be pumped are intended to flow, - two rotors (4) configured for rotating in the at least one compression chamber (3) of th...
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WO/2022/105302A1 |
A pump body assembly, a spacer aligning method, a compressor, and an air conditioner. The pump body assembly comprises: a crankshaft (1), the crankshaft (1) comprising a first eccentric portion (12), a support shaft (13), and a second ec...
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WO/2022/103163A1 |
The invention relates to a device for compressing a gaseous fluid, in particular a scroll compressor for compressing a refrigerant. The device (1) has a housing (2) with a wall (12) and a compression mechanism with an immovable stator (3...
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WO/2022/102564A1 |
This scroll compressor comprises: a fixed scroll (31) having a first spiral body (312); a rocking scroll (32) having a second spiral body (322) that forms a compression chamber (34) upon meshing with the first spiral body (312); and a ma...
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WO/2022/103005A1 |
A refrigeration cycle device includes a compressor. The compressor may comprise: a casing; a drive unit disposed in the casing; a compression unit coupled to the drive unit and configured to compress a refrigerant; and a valve configured...
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WO/2022/097853A1 |
A rotary compressor according to the present embodiment comprises bearing portions provided respectively on both sides of an eccentric portion, and a roller alignment portion which may be formed between the eccentric portion and at least...
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WO/2022/097917A1 |
A rotary compressor is disclosed. The present rotary compressor comprises: a casing forming the exterior thereof; vertically arranged first and second cylinders which have inner spaces, and which each include a rolling piston that rotate...
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WO/2022/096868A1 |
A rotor unit assembly (10) having a rotor unit (90) comprising a chamber (104) having a central axis and a rotor (200) located within the chamber (104) and rotatable around the central axis. The rotor (200) has a piston (214) which exten...
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WO/2022/096859A1 |
Scroll pump comprising an inlet and an outlet, a fixed scroll (120) intermeshed with an orbiting scroll (130) to define a space therebetween for pumping fluid from the inlet to the outlet, a biasing apparatus (170) configured to bias the...
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WO/2022/097030A1 |
Compressor device with a housing (2) and provided with at least one compressor element (3) and a drive (4) for the compressor element (3), characterised in that ail bearings (11) of at Ieast one shaft (10) in the compressor device (1), c...
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WO/2022/098428A1 |
A device for pumping fluid such as paints, sealants, caulks, and polymers made of a rotor assembly and a pump body. The rotor assembly contains at least one laminar flow element arranged in such a manner as to conduct the fluid from inle...
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WO/2022/096153A1 |
An EGR pump system includes an EGR pump assembly including an electric motor assembly coupled to a transmission assembly. A roots device is coupled to the electric motor through the transmission assembly. The roots device includes a hous...
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WO/2022/097299A1 |
A scroll compressor comprising: a fixed scroll having a fixed scroll spiral; an orbiting scroll having an orbiting scroll spiral; a main shaft having an eccentric shaft portion with the orbiting scroll attached at a first end; a rotation...
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WO/2022/090191A1 |
Method for operating and in particular monitoring a scroll pump, with the steps of: producing a vacuum by means of the scroll pump; determining a pressure of the scroll pump; comparing the recorded pressure with a pre-set threshold value...
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WO/2022/087922A1 |
A positive-displacement air compressor. The compressor comprises a crankshaft eccentric crank (1), an inner rotor (2), an outer rotor (3), and a housing (4). The crankshaft eccentric crank (1) has a crank axis O3, the housing (4) has a h...
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WO/2022/089759A1 |
The present invention is directed to an automotive vacuum pump (10) comprising - a pumping chamber (14), - a rotatable pump rotor (24) configured to rotate within the pumping chamber (14) so as to pump gas through the pumping chamber (14...
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WO/2022/091936A1 |
An aluminum alloy for sliding components, which contains 8.0 to 11.5% by mass of Si, 0.7 to 1.2% by mass of Cu, 0.2 to 0.6% by mass of Mg, 0.30 to 0.60% by mass of Mn, 0.10 to 0.30% by mass of Fe, and 0.01 to 0.03% by mass of Cr, with th...
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WO/2022/087923A1 |
An oil-free air compressor, the compressor comprising a motor spindle (15), an eccentric crank (7), a rotary pump body (13), and an inner rotor plunger (12); the central axis O3 of the eccentric crank rotates around the axis of rotation ...
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