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Patent Searching and Data


Matches 51 - 100 out of 37,692

Document Document Title
WO/2020/166285A1
This compressor is a multi-stage compression type compressor provided with a hermetically sealed container, and a rotary compressing mechanism which is accommodated inside the hermetically sealed container and which compresses a refriger...  
WO/2020/165592A1
A pump and method for pumping a gas are disclosed. The pump comprises: a pump housing element and a further element; one of the pump housing and the further element comprising a helical protrusion extending towards the other element, the...  
WO/2020/166290A1
A compressor that comprises a rotary shaft (12), a rotary body (60) that has a rotary body surface (71) and a vane groove (130), a fixed body (90) that has a fixed body surface (100), a vane (131) that is inserted into the vane groove, a...  
WO/2020/165561A1
A compressor includes a main rotor (4), formed substantially as a cylinder and rotatable about an axis of the cylinder, the main rotor having helical flutes, and a casing. An inlet port admits gas into a first part of the flutes at a fir...  
WO/2020/164877A1
Primary dry-type vacuum pump (1) comprising a duct formed in the stator (2), an inlet of which is intended to be connected to at least one source of purge gas and of which at least one outlet communicates with the last pumping stage (3e)...  
WO/2020/165985A1
A scroll compressor is provided with: a cylindrical shell (40); a fixed scroll (11) that is fixed to an inner wall of the shell; a swinging scroll (12) that is arranged opposite to the fixed scroll; a frame (50) that is fixed to the inne...  
WO/2020/165967A1
A scroll compressor is provided with a fixed scroll in which a fixed spiral body is projectingly provided on a fixed table plate and a swinging scroll in which a swinging spiral body is projectingly provided on a swinging table plate, an...  
WO/2020/164891A1
The scroll compressor (2) comprising a hermetic enclosure (3), a compression unit (11) configured to compress refrigerant, and an electric motor (16) configured to drive the compression unit (11) via a drive shaft (15), the hermetic encl...  
WO/2020/160999A1
The invention relates to a machine for expanding or compressing substantially gaseous media, comprising: a machine housing (10); at least one screw rotor (36, 38), which is arranged in the machine housing in a screw rotor bore (52, 54), ...  
WO/2020/162394A1
This scroll compressor is provided with: a fixed scroll; a turning scroll; a compression chamber; and a back pressure chamber. The compression chamber has an outer compression chamber positioned outside a second spiral wrap of the turnin...  
WO/2020/161965A1
This rotary compressor has a case, a rotating shaft, a compression mechanism, a balancer, and a balancer cover. A through-hole is formed at a position in the balancer cover that is facing the rotating shaft in the axial direction. The ro...  
WO/2020/162046A1
Provided is a multi-stage screw compressor with which an intermediate shaft portion of a rotor can be made shorter. A two-stage screw compressor is provided with: a front-stage compressing mechanism 1 which has a front-stage male rotor...  
WO/2020/155923A1
A sliding vane component, a rotor type compression component comprising the sliding vane component, and a compressor. The sliding vane component comprises a sliding vane (1) and a connection member (10) for connecting the sliding vane (1...  
WO/2020/157841A1
This two-way-rotating scroll compressor is provided with: a double-toothed first drive-side scroll member (71); a double-toothed first driven-side scroll member (91) which meshes with the first drive-side scroll member (71); a second dri...  
WO/2020/156958A1
The present invention relates to a hermetic compressor (1) comprising; a housing (2), a rotor (3) and a stator (4) inside the housing (2) and wherein the stator (4) is placed around the rotor (3) so as to be concentric with the rotor (3)...  
WO/2020/155727A1
Provided is a scroll compressor, comprising: a scroll assembly comprising a movable scroll (30, 130, 230), and a fixed scroll (20, 120, 220), with a longitudinal channel (126, H1, H2) which is in communication with at least one of multip...  
WO/2020/157902A1
The purpose of the invention is to obtain a sliding bearing structure in which oil film pressure is effectively increased between a rotating shaft and a sliding bearing of a scroll compressor, and galling of the rotating shaft and the sl...  
WO/2020/159033A1
The present invention provides a fluid transfer apparatus comprising: a rotating shaft comprising a rotation unit extending along an axial direction and a first eccentric unit and a second eccentric unit disposed to be spaced apart from ...  
WO/2020/157568A1
Non-lubricated system (100; 200; 300) for pumping a gas, comprising a stationary stator with a housing (120; 220; 320) comprising a rotor cavity (210; 310) and at least one rotatable rotor element (101, 102) incorporated within the rotor...  
WO/2020/157587A1
A method for controlling a compressor towards an unloaded state, in which the compressor comprises a compressor element 2) with an inlet (5), in which in the unloaded state, a residual flow (QD) is suctioned via the inlet (5) towards and...  
WO/2020/159394A1
The invention relates to rotary-piston machines, and more particularly to systems for sealing the working chambers of such machines, and can be used in gas (air) and refrigerating compressors, heat and vacuum pumps, and internal combusti...  
WO/2020/157792A1
A scroll compressor (100) comprises: a shell (1) that constitutes an outer shell and forms an oil sump (131) that stores lubricating oil inside; a fixed scroll (41) housed in the shell; an orbiting scroll (42) housed in the shell and for...  
WO/2020/152767A1
This scroll compressor, in which a fixed scroll and a swing scroll are provided so that the respective spiral teeth are engaged and a compression chamber is formed between the fixed scroll and the swing scroll, is provided with a complia...  
WO/2020/151364A1
A valve assembly and a compressor comprising the valve assembly, wherein the valve assembly (200, 300, 400) comprises: a valve plate (210, 310, 410) which is at least provided with a first fluid through hole ( 214, 312, 412), a second fl...  
WO/2020/153661A1
The present invention relates to a scroll compressor comprising: a casing; an orbiting scroll; a fixed scroll; and a main frame supporting the orbiting scroll. The fixed scroll comprises a fixed scroll end plate and a fixed scroll wrap p...  
WO/2020/153665A1
The present invention relates to a scroll compressor comprising: a casing; an orbiting scroll orbiting inside the casing; a fixed scroll engaging with the orbiting scroll so as to form two compression chambers in a pair; and a main frame...  
WO/2020/151365A1
A flow guide pipe structure for an enhanced vapor injection compressor assembly. The compressor assembly comprises a compressor (1), an enhanced vapor injection fluid source, and an enhanced vapor injection pipe (2) suitable for supplyin...  
WO/2020/148857A1
This scroll compressor comprises: an oil pump that is provided to a lower end of a drive shaft and that, along with the rotation of the drive shaft, causes oil in an oil storage section to pass through an oil supply channel formed in the...  
WO/2020/147886A1
The invention relates to a method for operating a scroll compressor (110) for an air conditioner (100). The scroll compressor (110) has a stationary spiral (101) and a spiral (102) which can be moved relative thereto and which is arrange...  
WO/2020/143229A1
A screw compressor (100), comprising a screw rotor (110) and a spool valve (120). The screw rotor (110) comprises a suction head end (111) and an exhaust tail end (112). Gas is sucked in from the suction head end (111) and compressed gas...  
WO/2020/143350A1
A thrust plate (100) for a scroll compressor (10), and the scroll compressor (10) comprising the thrust plate, wherein the thrust plate (100) comprises a thrust surface (110) located on a first face of the thrust plate (100); an annular ...  
WO/2020/141100A1
The invention relates to a rotary piston engine, comprising a housing (1), an intake port (4) for conducting gas into a working chamber (2), an exhaust port (6), connecting to the working chamber (2), for conducting the gas out of the wo...  
WO/2020/133561A1
A screw compressor having stacked rotors, comprising a housing (1), a screw rotor and a drive motor (12); the screw rotor comprises a male screw (2) and female screw (3) that are engaged with one another; the male screw (2) consists of s...  
WO/2020/136786A1
This scroll compressor is provided with an unload mechanism for performing an unload operation in which discharge rate is limited by feeding a fluid through a bypass from a compression chamber to a low-pressure space. Formed in a separat...  
WO/2020/125108A1
Provided is a piston limiting structure, comprising: an air cylinder (1), a piston (2), and a flange provided with a limiting member (52), wherein the air cylinder (1) is provided with a piston hole (11) perpendicular to an axial directi...  
WO/2020/125093A1
A pump body assembly and a rotary cylinder piston compressor, the pump body assembly comprising: a rotary shaft (1), a piston (2) and at least one shaft oil groove (14). The rotary shaft (1) comprises a shaft body and a shaft inner hole ...  
WO/2020/125099A1
Disclosed are a piston limiting structure, a compressor, and a heat exchange apparatus. The piston limiting structure comprises: a cylinder (1), which has a piston hole (11) perpendicular to an axial direction of the cylinder (1) and pen...  
WO/2020/128830A1
Positive displacement machine such as a compressor, expander, pump or the like, for displacing a gaseous or liquid medium, the machine (1) containing an element. (3) with at least one inlet (18) and at least one outlet (19) for the mediu...  
WO/2020/125064A1
A scroll compressor, an air conditioner, and a backpressure adjustment method for a scroll compressor. The scroll compressor comprises: a mounting support frame (20); a fixed scroll (30); an orbiting scroll (40); a compression cavity (90...  
WO/2020/120659A1
The invention relates to a scroll compressor (3) for refrigerant of a vehicle climate control system, comprising: a housing (12) having a high-pressure chamber (29) and having compressor chambers (24), and having a counter-pressure chamb...  
WO/2020/121809A1
This fluid machine is provided with a fixed scroll (33), an orbiting scroll (20), and a rotation preventing mechanism portion (50). In order to prevent rotational movement of the orbiting scroll, the rotation preventing mechanism portion...  
WO/2020/118581A1
A compressor (100) comprises: a cover (110), a fixed scroll (120), an orbiting scroll (130), a connecting block (150) and a check valve (140); a gas supplement channel (112) is arranged on the cover (110); the fixed scroll (120) is fixed...  
WO/2020/121443A1
In a rotary compressor according to an embodiment, the axial thickness of a partition plate is less than the axial thickness of a first flange part and the axial thickness of a second flange part. The area of a portion of an end face of ...  
WO/2020/120746A1
The invention relates to a lobe pump having: a pump housing with a pump chamber; an inlet opening and an outlet opening; a first multi-vaned rotary piston, which is situated in the pump chamber and is mounted rotatably about a first rota...  
WO/2020/118816A1
A compressor assembly and a preparation method, a rotary compressor comprising the compressor assembly, and an air-conditioning device. The compressor assembly comprises a sliding blade (1), a piston (2), and a connecting member (3); a f...  
WO/2020/113904A1
A rotary compressor, comprising: a cylinder (1) provided with a sliding vane groove (12); a sliding vane (3) installed in the sliding vane groove (12); a cam mechanism (2), a cam part of which is rotatably provided in the cylinder (1); a...  
WO/2020/116007A1
Provided is a screw compressor that can reduce a pressure loss of a suction passage. A casing 12 of the screw compressor comprises: a bore 21 that accommodates a tooth part 13A of a male rotor 11A and a tooth part 13B of a female rotor 1...  
WO/2020/116781A1
Provided is a high-pressure scroll compressor including a separate discharge flow path provided at a back pressure chamber such that, when discharged refrigerant is introduced into the back pressure chamber, the discharged refrigerant ca...  
WO/2020/114754A1
The invention relates to a pumping unit comprising: - a primary vacuum pump, - a Roots-type vacuum pump (3) comprising a pumping stage (7) having a stator (9) inside of which two Roots rotors (5) are configured to rotate synchronously in...  
WO/2020/115795A1
This scroll compressor comprises a fixed scroll with a helical scroll lap protruding from a fixed base plate, and an orbiting scroll with a helical scroll lap protruding from an orbiting base plate, the scroll laps engaging with each oth...  

Matches 51 - 100 out of 37,692