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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...
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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...
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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...
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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...
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WO/2020/095328A1 |
An oil-free water-injected screw air compressor comprises a housing that encloses two rotors for generating compressed air, an air water separator for separating the water from the compressed air. Injecting water during compression can r...
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WO/2020/087654A1 |
A sealing structure and a scroll air compressor having same. The sealing structure comprising: a moving scroll plate (10), comprising a moving plate scroll (11), the moving plate scroll (11) having disposed thereon a moving plate scroll ...
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WO/2020/085752A1 |
Disclosed is a compressor. A compressor provided according to an embodiment of the present invention can supply oil to a region of a suction chamber or back pressure chamber and allow the oil to stably remain therein.
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WO/2020/063270A1 |
A water-lubricated sliding vane air compressor, comprising: a shell (1), a large end cap (2), a small end cap (3), a stator (4), a rotor (5), a sliding vane (6), an air filter (7), an air intake valve (8), a water-gas separator (9), a ch...
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WO/2020/051692A1 |
Sealing in rotary positive displacement machines based on trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator is described. Seals can be mounted on the rotor, the stator, or both. The...
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WO/2020/025924A1 |
A seal assembly (20) for a rotating machine, a rotating machine and method are disclosed. The seal assembly is for a rotating machine comprising shell stators defining at least one pumping chamber and end pieces mountable at either end o...
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WO/2020/011769A2 |
The invention relates to a scroll compressor which comprises the following: a compressor unit (20) having a stationary stator spiral element (21) and a rotatable rotor spiral element (22) which is mounted so as to be axially movable rela...
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WO/2019/242721A1 |
A scroll compressor comprises: a scroll assembly (110) comprising an orbiting scroll (111) and a non-orbiting scroll (112), the orbiting scroll (111) and the non-orbiting scroll (112) respectively comprising an orbiting scroll profile (1...
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WO/2019/201884A1 |
The invention relates to a pump (1) having a product chamber (3) for a product to be pumped and at least two sealing chambers (9, 10), wherein - a first sealing chamber (9) is in the form of a barrier chamber filled with a barrier liquid...
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WO/2019/192913A1 |
The invention relates to a dry-type vacuum pump (1) comprising: at least one oil sump (2); at least one pumping stage (3e); two rotating shafts (4) each bearing at least one rotor (5) extending inside the at least one pumping stage (3e),...
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WO/2019/170386A1 |
The invention relates to a dry-type vacuum pump (1) comprising: – at least one oil pan (2), – at least one pumping stage (3a – 3e), – two rotary shafts (4) respectively bearing at least one rotor (5) extending in the at least one...
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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/2019/149030A1 |
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/2019/132666A1 |
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...
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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...
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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, ...
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WO/2019/092024A1 |
Scroll compressor having a fixed disc (1) and a fixed scroll (2) on a fixed base surface (3) of the fixed disc (1), which fixed scroll (2) configures a spiral compressor channel (6) which extends from an outer end (5) of the fixed scroll...
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WO/2019/065404A1 |
A screw compressor 1 is provided with: a rotor casing 10 that defines a rotor chamber S1 accommodating a screw rotor body 16a; a shaft part 16c that extends from the screw rotor body 16a in such a manner as to penetrate through the rotor...
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WO/2019/050679A1 |
A compressor system (10) includes a gas compressor (18) with dry gas seals (66, 68) about a driveshaft (64). The compressor system (10) also includes a fugitive gas system (30) having a gas conduit (36) in fluid communication with a coll...
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WO/2019/045454A1 |
Provided is a scroll compressor in which an installation position of a check valve is optimized, such that a back flow of a refrigerant is prevented at the time of stopping of the scroll compressor, flow noise can be reduced, the refrige...
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WO/2019/027844A1 |
A supercharger having twisted meshing rotors sealingly contained within a housing having an inlet port to admit air into the meshing rotors and an outlet port to expel air from the meshing rotors, the rotors having mesh points where the ...
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WO/2018/215260A1 |
Disclosed is a vane pump, comprising a stator having an accommodation groove, a rotor provided in the accommodation groove, a plurality of vane grooves radially formed in the rotor, and a plurality of vanes able to reciprocally slide in ...
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WO/2018/190544A1 |
A scroll compressor includes: a frame configured to support a second scroll by being coupled to a first scroll; a sealing member insertion groove formed in a ring shape, on at least one of one side surface of the second scroll and one si...
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WO/2018/190520A1 |
Provided is a scroll compressor including: a casing: a drive motor which is held in place within the casing and has an internal flow passage and an external flow passage to pass through; a rotation shaft which is combined with the drive ...
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WO/2018/185730A1 |
An epitrochoidal vacuum pump includes a housing having a chamber, a rotor rotatably received within the internal space of the chamber, and a drive shaft configured to rotate the rotor eccentrically about an axis within the chamber in an ...
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WO/2018/166875A1 |
A lubricant-sealed vacuum pump, such as a rotary vane pump, comprises a rotor element (16) arranged in a suction chamber (10). The rotor element (16) is carried by a rotor shaft (26). The shaft (26) is surrounded by a main seal (32) arra...
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WO/2018/142095A1 |
A pump cooling system may include a cooling body (24) to be fitted to a pump housing (14) to receive heat from the pump housing via a heat conducting path (44) between the cooling body and pump housing. The cooling body (24) may have a p...
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WO/2018/138487A1 |
A pump assembly is disclosed comprising: two half shell stators defining one or more pumping chambers; end pieces mounted at either end of said two half shell stators; longitudinal seals for sealing between longitudinal contact faces of ...
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WO/2018/139500A1 |
This scroll compressor is provided with a scroll member which has a compression chamber which compresses a work fluid, a housing which houses the scroll member, a second drive-side shaft (72c) which discharges compressed work fluid from ...
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WO/2018/139543A1 |
This scroll compressor is provided with a scroll member which has a compression chamber which compresses a work fluid, a housing which houses the scroll member, a second drive-side shaft (72c) which discharges compressed work fluid from ...
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WO/2018/138489A1 |
A vacuum pump and method of manufacture thereof, the vacuum pump comprising: two half shell stators components mounted together at longitudinal contact faces and defining one or more pumping chambers; longitudinal seals for sealing betwe...
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WO/2018/139161A1 |
Provided is a single-screw compressor wherein a gate rotor assembly engaging with a screw rotor is provided with a first gate rotor (60) and a second gate rotor (70). In the first gate rotor (60), a front seal line (67) sliding on the fr...
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WO/2018/139307A1 |
This scroll compressor can adjust intermediate pressure to a prescribed pressure during compression of a compression chamber 15 and reduce the compression ratio under low compression ratio conditions in which an orbiting scroll 12 separa...
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WO/2018/139501A1 |
This scroll compressor is provided with a scroll member which has a compression chamber which compresses a work fluid, a housing which houses the scroll member, a second drive-side shaft (72c) which discharges compressed work fluid from ...
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WO/2018/134200A1 |
The invention relates to a spindle compressor designed as a twin-shaft rotary displacement machine for delivering and compressing flow media, particularly steam. It comprises a pair of spindle rotors in a compressor housing (1) comprisin...
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WO/2018/115815A1 |
A pump assembly is disclosed. The pump assembly comprises: a rotor (50) having a rotor shaft portion (80); a stator (100) having a bore portion defining a bore for receiving the rotor shaft portion; and a circumferential protrusion exten...
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WO/2018/117682A1 |
According to the present invention, a scroll compressor comprises: a housing; a driving motor accommodated in the housing; an orbiting scroll rotated by the driving motor; a fixed scroll provided inside the housing, and forming a compres...
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WO/2018/117276A1 |
This screw compressor is equipped with: a screw rotor 2 that is formed from a rotor part 21 and a shaft part 23; a casing 4 that is provided with a shaft hole 53a through which the shaft part 23 is inserted, and that houses the screw rot...
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WO/2018/090809A1 |
Disclosed is a scroll compressor (1), comprising a stationary scroll member (50) and a movable scroll member (60) engaged with each other. The stationary scroll member (50) defines a first air inlet (In1), a second air inlet (In2), a fir...
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WO/2018/086680A1 |
The invention relates to dry-compressing 2-shaft rotational displacement machines for conveying and compressing gases for use in a vacuum and overpressure. According to the invention, in order to improve effectiveness and reliability in ...
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WO/2018/084345A1 |
The present invention relates to an electric compressor having an electrical connection means. According to one aspect of the present invention, provided is an electric compressor comprising: a compression mechanism unit for compressing ...
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WO/2018/068806A1 |
Rotary vacuum pump, comprising a housing defining a pump chamber therein, and a rotor extending through a first axial end panel into the pump chamber and carrying at least one vane for rotary movement of the vane within the pump chamber,...
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WO/2018/054855A1 |
The invention relates to a system (1) for a utility vehicle comprising a screw compressor (10) and an electric motor (5), said electric motor (5) driving the screw compressor (10). The electric motor (5) is connected to the screw compres...
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WO/2018/056152A1 |
Provided is a housing seal structure that improves the seal integrity between housings using an O-ring. The housing seal structure uses an O-ring 62 to form a seal between joining parts 57, 59 of a fixed scroll 24 and a front housing 4 j...
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WO/2018/056634A1 |
The present invention relates to a mutual rotation type scroll compressor in which the position of a bearing supporting scrolls is changed by a torque repulsive force applied to the bearing by the compression-repulsion of a compressed fl...
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WO/2018/054865A1 |
The present invention relates to a screw-type compressor (10) for a utility vehicle, having at least one housing (20) with at least one housing cover (20b) and with at least one rotor housing (20a), having at least one baffle plate (100)...
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