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Matches 251 - 300 out of 30,162

Document Document Title
WO/2023/075499A1
The present invention relates to a scroll compressor, and a method for manufacturing an eccentric bush required therefor. The scroll compressor comprises: a shaft rotated by means of a driving source; an eccentric bush having a recessed ...  
WO/2023/072720A1
Dry vacuum pump (1) having a cooling device (10) configured to cool the stator (2), the cooling device (10) having a fluidic circuit (11) and at least one flow rate regulator (12) arranged in a regulation duct (15) of the fluidic circuit...  
WO/2023/074389A1
A suction check valve (80) comprises a valve body (81), a valve seat (85), and a compression spring (88). The valve body (81) includes a first bottom portion (82) and a first peripheral wall portion (83) vertically extending along the ci...  
WO/2023/065754A1
An exhaust valve assembly, a compressor and an air conditioner. The exhaust valve assembly comprises: a flange (1) and an exhaust assembly. The flange (1) is provided with a valve seat (2), and the valve seat (2) is provided with an exha...  
WO/2023/060816A1
A low-pressure chamber rotary compressor and an air conditioner, the low-pressure chamber rotary compressor comprising a housing (100), a motor assembly and a pump body assembly. The housing (100) is provided with a low-pressure intake c...  
WO/2023/063243A1
A cylindrical main shell (11) that houses a compression mechanism unit (3) having a fixed scroll (31) and an orbiting scroll (32), a frame (2) for slidably holding the orbiting scroll (32), and a drive mechanism unit (4) for sliding the ...  
WO/2023/059019A1
The invention relates to a refrigerant compressor including a compressor housing, a drive shaft for driving a compression mechanism, which is arranged within the compressor housing, a main bearing via which the drive shaft is supported o...  
WO/2023/058106A1
This compressor is provided with: a casing having a low-pressure space and a high-pressure space having pressure higher than that of the low-pressure space; a motor accommodated in the casing; a screw shaft that is fixed to the motor and...  
WO/2023/053093A1
An asymmetric scroll compressor includes a compressor housing. An orbiting scroll member and a non-orbiting scroll member disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member each includes...  
WO/2023/054855A1
A scroll compressor according to the idea of the present disclosure may comprise: a fixed scroll provided inside a main body; an orbiting scroll provided to make an orbiting motion relative to the fixed scroll and including an orbiting e...  
WO/2023/051004A1
A scroll compressor (1), comprising: a compression mechanism, comprising an orbiting scroll (10), wherein the orbiting scroll (10) has an end plate (11) and a hub (12), which extends from the end plate (11), and the end plate (11) has an...  
WO/2023/045767A1
A vibration frequency adjustment system, comprising a vibratable component (102), at least one counterweight (401, 402), at least one drive device (407, 408) and a controller (307). The vibratable component (102) is configured to be conn...  
WO/2023/048048A1
Provided is a compressing mechanism in which wear and seizure can be suppressed. The compressing mechanism is provided with a bush 60 having a first sliding surface 61 that slides along an inner surface 45a of a bush hole 45, and a sec...  
WO/2023/045270A1
A pump body (100) and a compressor, the pump body (100) comprising a crankshaft (1) and a first bearing (2). The crankshaft (1) is provided with an eccentric portion (12), the first bearing (2) is provided with a shaft hole (20), and the...  
WO/2023/040643A1
A compressor, comprising: a housing (101) provided with a rotor accommodating cavity (105) and an exhaust cavity (180); a pair of screw rotors (110) at least partially located in the rotor accommodating cavity (105), a compression accomm...  
WO/2023/042328A1
The objective of the present invention is to provide a scroll type fluid machine with which it is possible to improve the sealing properties of an operating chamber. A scroll type compressor is provided with: a fixed scroll 11 having a...  
WO/2023/035295A1
The present invention relates to the technical field of air pumps, and in particular, to a mechanical air pump, comprising a driving mechanism, a gas generator, and a flow accelerator. The driving mechanism is provided with a housing, th...  
WO/2023/038293A1
According to the present invention, provided is a scroll compressor in which a plurality of fixing protrusions are provided spaced apart from each other in a key that constitutes an Oldham ring, and an orbiting scroll, to which the key i...  
WO/2023/039269A1
A vacuum pump includes a motor, a pump coupled to the motor to receive torque therefrom, and a trestle including an inlet port, an outlet port, and a fluid pathway therebetween, the outlet port being fluidly connected to the pump. The va...  
WO/2023/038633A1
A screw compressor and a compact variable volume index valve therefore are provided. The compact variable volume index valve includes a linear valve member positioned adjacent a compression chamber outlet end of a compression chamber of ...  
WO/2023/036834A1
The invention relates to a pump (1), preferably a transmission oil pump, comprising an electric motor (4) with a motor housing (34), which comprises a housing wall (31), and a pump device (2) with a pump housing (3), wherein the drivesha...  
WO/2023/033400A1
The invention relates to a back pressure valve for scroll compressors, wherein the back pressure valve has a housing (1) with a cavity (2) and a closure piston (3) arranged in the housing (1) so as to be movable in translation, wherein t...  
WO/2023/031188A1
A scroll compressor is provided, the scroll compressor comprises two scroll bodies each having a scroll rib and the scroll ribs engage each other to form at least one compression chamber, and the scroll compressor further comprises a dri...  
WO/2023/026651A1
A fixed-side oil groove (80) is provided to a surface of a fixed scroll (60) that faces a movable scroll (70). The fixed-side oil groove (80) has a fixed-side circumferential-direction groove portion (81). A widened portion (84) is wider...  
WO/2023/024754A1
Disclosed is a method for forming internal and external profiles of stationary and movable scroll plates which have a variable wall thickness, comprising a stationary scroll plate and a movable scroll plate. The movable scroll plate is f...  
WO/2023/020805A1
The application relates to a multistage, electrically drivable compressor (1) for generating compressed air for a compressed air supply system of a utility vehicle, the compressor having a cooling system (7.1) which can be operated using...  
WO/2023/020033A1
A cylinder and a compressor. The cylinder comprises a cylinder body (1), an exhaust port (2), and a sliding sheet groove (3). The exhaust port (2) and the sliding sheet groove (3) are both arranged on the cylinder body (1). The exhaust p...  
WO/2023/017776A1
This tip seal member is inserted to a fitting groove disposed in a leading-end face of a lap provided to one of a turning scroll or a fixed scroll of a scroll fluid machine. The tip seal member has at least one through hole in a cross-se...  
WO/2023/016751A1
Compressor assembly (1) comprising a motor (2) having a motor shaft (7) which drives at least one compressor rotor (5, 6) of a compressor element (3) as well as an oil-pump (18, 63), wherein a compressor rotor (6) comprises a compressor ...  
WO/2023/016239A1
A single-piston annular cylinder, and a rotor air compressor and a rotor internal combustion engine applying the annular cylinder, wherein the annular cylinder comprises three parts, i.e., a housing assembly, and a rotor ring assembly an...  
WO/2023/016737A1
Compressor assembly (1) comprising a motor (2) which drives one or more compressor rotors (11, 12) comprising an oil circulation system (33) comprising an oil reservoir (47), an oil cooler (48) and an oil filter (50), an oil-pump (32) fo...  
WO/2023/015947A1
A screw compressor and an air conditioner. The screw compressor comprises: a compressor housing (1) having a compression portion mounting space (C1), a drive portion mounting space (C2), a compressor inlet (1A), and a compressor outlet (...  
WO/2023/013370A1
Provided is a scroll compressor in which fixing parts are provided on an end of an arm that supports a bearing, and a plurality of welding pins are press-inserted into each fixing part to weld-fix the welding pins and a casing, wherein d...  
WO/2023/012418A1
A hydraulic air compressor (1) that is intended to be mounted on a motorised vehicle provided with a hydraulic system, such as a tractor, truck or trailer truck, or an excavator, and comprising • - an oil-hydraulic motor (2); • - an ...  
WO/2023/012852A1
This hermetic compressor is provided with a hermetic container constituting an outer hull and a compression mechanism part accommodated in the hermetic container. The compression mechanism part is provided with a hollow cylindrical cylin...  
WO/2023/013340A1
A high-pressure dome type scroll compressor comprising a first passage member (12) and a second passage member (70). The first passage member (12) is connected to a suction passage of a fixed scroll (40), and guides a low-pressure fluid ...  
WO/2023/009255A1
A compressor may include first and second scrolls, an axial biasing chamber, and a modulation control valve. The second scroll includes an outer port and an inner port. The outer and inner ports may be open to respective intermediate-pre...  
WO/2023/003015A1
This horizontal rotary compressor comprises a compression mechanism 30 inside a housing 110, and the compression mechanism 30 includes horizontal cylinders 31A, 31B, eccentric rollers 33A, 33B, and vanes 35A, 35B. The vanes 35A, 35B are ...  
WO/2023/001709A1
Scroll machine (2), in particular for refrigerant of a vehicle air-conditioning system, having - a first scroll (14) with a first base plate (14c) and with a first spiral wall (14a) which protrudes from the first base plate (14c) and is ...  
WO/2023/001485A1
Element for compressing a gas, having a housing (2) in which a first and second rotor (3, 4) having respective rotational axes are mounted, wherein the housing (2) is provided with an axial outlet opening (8) formed, inter alia, by a ton...  
WO/2023/001718A1
Dry rough-vacuum pump (1) comprising a stator (11) formed by at least one end support (12a, 12b) coupled axially to at least two stator elements (13) assembled to form at least one pumping stage (8a, 8b, 8c, 8d), and two shafts (9) provi...  
WO/2023/001407A1
An exhaust gas recirculation includes a Roots-type device including a pair of intermeshed rotors and an input shaft, the Roots-type device having an inlet for receiving exhaust gases from an internal combustion engine and having an outle...  
WO/2023/283660A1
The invention relates to a rotary piston compressor (1) for compressing gas, in particular carbon dioxide, in which compressor a side wall surface (7) of a housing side wall (4) and a planar sealing surface (8, 9) of each housing cover (...  
WO/2023/286943A1
A horizontal type rotary compressor comprises: a case comprising an inlet port and an outlet port and having oil stored therein; a compressing apparatus having a compressing space in which a refrigerant flowing in through the inlet port ...  
WO/2023/286466A1
Provided is a package-type rotary pump unit that enables high pump performance to be maintained and prolongs the service life of a device by making it possible to prevent the internal air within a sealed housing from becoming overheated ...  
WO/2023/286942A1
A rotary compressor comprises: a compression device that has a compression space for accommodating a refrigerant introduced into a suction port, compresses the refrigerant in the compression space and discharges same to a discharge port;...  
WO/2023/286559A1
Provided is an annular sealing member for a compressor that is capable of exhibiting a reliable low-torque property without harming durability or causing deterioration of a sealing function. In a scroll compressor comprising a fixed scro...  
WO/2023/280865A1
A screw pump (100) comprising a housing defining a chamber (62) and two screw rotors (10). Wherein each screw rotor (10) comprises a rotor shaft (11) and at least two displacement elements (12, 14) connected with the rotor shaft (11). Ea...  
WO/2023/283055A1
A compressor includes a compression mechanism, a motor, a drive shaft, and a motor cooler. The compressor is configured to compress a working fluid. The motor dives the compression mechanism and is housed within a motor housing. The driv...  
WO/2023/280183A1
A cavity-dividing rotor volume mechanism, comprising a cylinder body (5), a main rotor (1), a cavity-dividing rotor (4), a rotor end cover (3), a cylinder end cover (2), and a gear train. A main rotating shaft is provided on both ends of...  

Matches 251 - 300 out of 30,162