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Matches 1 - 50 out of 3,140

Document Document Title
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...  
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...  
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...  
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...  
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 ...  
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 ...  
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,...  
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...  
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...  
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...  
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)...  
WO/2018/048086A1
The present invention relates to a compressor comprising: a motor for generating driving force; a compression device driven by the motor and compressing a refrigerant; an inverter for controlling the motor; a connector for electrically c...  
WO/2018/038182A1
Provided is a scroll fluid machine which is capable of avoiding malfunctions which occur in connection portions between flat portions and inclined portions of an end plate and a wall. The present invention is provided with: a wall inclin...  
WO/2018/034255A1
Provided is a scroll fluid machine that has an inclined section in a wall body and an end plate and that is capable of performing effectively. A scroll compressor (1) is provided with a fixed scroll member (3) and a rotating scroll (5). ...  
WO/2018/030245A1
The objective of the present invention is to improve the lubricating performance of a rolling bearing and a shaft sealing member by making it possible to form a refrigerant guide channel on an inner circumferential surface of a bearing p...  
WO/2018/016422A1
Provided is a housing seal structure that better prevents housing corrosion of a seal structure using an O ring between housings. In the housing seal structure, an O ring 62 seals between a joint surface 57 of a fixed scroll 24 and a joi...  
WO/2017/220961A1
The present application provides a scroll vacuum pump comprising: an orbiting scroll having an orbiting scroll wall extending axially from an orbiting scroll base towards a fixed scroll, the fixed scroll having a fixed scroll wall extend...  
WO/2017/210594A1
A scroll compressor lubrication system and a scroll compressor are disclosed. The scroll compressor includes a capacity modulator, a lubricant opening, and a gas diverting passage. The capacity modulator is in fluid communication with co...  
WO/2017/201895A1
A rotating system, and a fluid motor, a compressor, a pump and an engine using same. The rotating system uses a primary rotating device (610), at least one left rotating device (620) and at least one right rotating device (630). Eccentri...  
WO/2017/202385A1
A vortex compressor, comprising a fixed vortex (150) and an orbiting vortex (160); the fixed vortex (150) comprises a fixed vortex end plate (154) and a spiral-shaped fixed scroll (156) extending from the fixed vortex end plate (154); th...  
WO/2017/202346A1
A positioning and seal assembly, comprises N positioning roller-balls (927) and a seal holder (926) in a two-layer ring-shaped structure, the seal holder (926) comprising an inner ring portion (926a) and an outer ring portion (926b); the...  
WO/2017/199001A1
Liquid Ring pumps are inherently inefficient due to energy losses caused by friction, the present invention overcomes this by providing a coating on certain surfaces of the pump to limit the friction.  
WO/2017/188702A1
A means for controlling back pressure in a scroll compressor according to the present invention relates to a means for controlling back pressure in a scroll compressor, which regulates back pressure applied to an orbiting scroll and a fi...  
WO/2017/188557A1
A scroll compressor according to the present invention comprises: a motor unit providing driving force; an orbiting scroll made to orbit by the motor unit; a fixed scroll coupled to the orbiting scroll to define a compression chamber tog...  
WO/2017/189090A1
A positive displacement device includes a first cylinder, a second cylinder disposed within the first cylinder, and a third cylinder disposed around the first cylinder. An interior surface of the first cylinder and an exterior surface of...  
WO/2017/183783A1
The present invention relates to a compressor comprising: a motor for generating a driving force; a compression mechanism driven by the motor so as to compress a refrigerant; an inverter for controlling the motor; a connector for electri...  
WO/2017/181335A1
A rotary compressor comprises a cylinder body (100), a front cylinder cover (200), and a rear cylinder cover (300). An off-center rolling rotary compression device (P) is disposed in a cylinder (140) of the cylinder body (100). The off-c...  
WO/2017/175945A1
A motor-operated compressor includes a casing having an inner space in which a driving motor, an orbiting scroll and a fixed scroll are accommodated, and a controller provided outside the casing. The casing includes an intake hole formed...  
WO/2017/169523A1
The purpose of the present invention is to provide a case-sealing structure for which sealing between cases using an O-ring has been improved. The case-sealing structure seals between the fastening surfaces 57 and 59 of a fixed scroll 24...  
WO/2017/163770A1
The present invention addresses the problem of providing a vane pump configured so that an increase in the number of parts can be suppressed and so that the sealing performance between sliding surfaces can be easily ensured. A vane pump ...  
WO/2017/163017A1
A scroll pump (10) has a fixed scroll (26) and an orbiting scroll (28). The base members (38, 46) of the scrolls are provided with respective base seals (54, 56) to seal between the major surfaces (36, 44) of the base members (38, 46) an...  
WO/2017/164153A1
Provided is an oil free screw compressor 10 that comprises: a screw rotor 14 that is provided with a screw part 14a and a shaft part 14c; a bearing 26; a first shaft sealing device 30 that is disposed between the screw part and the beari...  
WO/2017/144868A1
A scroll pump tip seal (146) to be fitted to a tip face (34) of a scroll wall (28) of a first scroll of a scroll pump to seal between the tip face and a base plate of a second scroll of the scroll pump has a first end (158), a second end...  
WO/2017/144098A1
In order to optimize a compressor comprising a compressor housing, a scroll compressor unit which is arranged in the compressor housing with a first compressor body and a second compressor body which can be moved relative to the first co...  
WO/2017/144870A1
A scroll pump tip seal to seal a single stage of a scroll pump that includes a first scroll (22) and a second scroll (20). The tip seal is formed of a plurality of seal segments (46(1) to 46(n)) fitted contiguously end to end to a tip fa...  
WO/2017/144869A1
A scroll pump tip seal (246) to be fitted to a tip face of a scroll wall of a first scroll of a scroll pump to seal between said tip face and a base plate of a second scroll of the scroll pump. The tip seal is made of metal and has at le...  
WO/2017/140718A1
The scroll compression device includes a first scroll element (11) having a first base plate (13) and a first spiral wrap (14); a second scroll element (12) having a second base plate (15) and a second spiral wrap (16), one of the first ...  
WO/2017/124999A1
A seal assembly (800) for use with a scroll compressor and a scroll compressor (10) comprising the seal assembly (800), the scroll compressor (10) comprising a first member and a second member. The seal assembly (800) is disposed between...  
WO/2017/122458A1
An oil-free screw compressor is provided with: a screw rotor (16); a bearing (22) for supporting a rotor shaft (21); a shaft seal device (30) having an oil seal (31) which is disposed on the bearing (22) side and a gas seal (40) which is...  
WO/2017/106030A1
A scroll compressor includes a housing and scroll compressor bodies disposed in the housing. The scroll bodies include first and second scroll bodies. The first and second scroll bodies have respective bases and respective scroll ribs th...  
WO/2017/099664A1
A bearing arrangement for a unit that is mutually turnable around a centre of rotation (R) comprising an external part (1) and an internal part (7), which, with the aid of high hydraulically acting pressure, is arranged to achieve a reci...  
WO/2017/089156A1
The invention relates to a vacuum pump (100) with a substantially cylindrical pump housing (10) in which a rotor with slide elements is rotationally mounted and which has at least one air outlet opening (11). A pot-shaped silencer hood (...  
WO/2017/076803A1
The invention relates to a dry vacuum pump, comprising a pump housing, which forms a plurality of suction chambers, wherein rotor elements are arranged in the suction chambers, in order to convey a pump medium from a high-vacuum-side inl...  
WO/2017/056713A1
The purpose of the present invention is to obtain excellent sealability through a simple and cheap structure in which an O ring is used. The sealing structure according to the present invention is provided with: one sealing surface (2a),...  
WO/2017/034669A1
A supercharger that receives and/or generates high pressure boost air and contains gear lubrication includes a housing, a rotor coupled to a rotor shaft rotatably supported in the housing, and a high pressure rotor seal disposed about th...  
WO/2017/031134A1
A supercharger rotor comprising a plurality of lobes around a center axis, each lobe of the plurality of lobes comprising a rotor profile. The rotor profile comprises a tip, a convex addendum comprised of at least two interpolated and st...  
WO/2017/026744A1
A compressor includes a discharge guide provided to communicate a discharge port and a bypass port to a discharge cover so that refrigerant discharged from the discharge port and the bypass port is guided to the discharge cover and a mid...  
WO/2017/023943A1
A compressor may include a non-orbiting scroll, an orbiting scroll, a drive shaft, a bearing housing and an annular seal. The non-orbiting scroll includes a first spiral wrap. The orbiting scroll includes an end plate having a second spi...  
WO/2017/021695A1
The present invention relates to a multi-stage vacuum pump comprising: first and second half-shell stator components (102). (104) defining a plurality of pumping chambers (106) to (116) and for assembly together along respective longitud...  
WO/2017/016644A1
The invention relates to a compressor having at least one cylinder (24), which has an internal wall (23), and a piston (26) that is rotatably mounted in the cylinder (24), eccentrically with respect to the longitudinal axis (25) of the l...  

Matches 1 - 50 out of 3,140