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Patent Searching and Data


Matches 301 - 350 out of 6,128

Document Document Title
WO/2019/039181A1
In this rotary compressor, a recess (141-1) is provided to the outer circumference of an intermediate partition plate (140-1) in a position where an upper vane and a lower vane slide. A value obtained by doubling the amount of eccentrici...  
WO/2019/039267A1
A compressor 1 is provided with a first rotor set 13, a second rotor set 23, a connection portion 40 that mechanically connects a first male rotor 14 and a second female rotor 25, and a rotor casing 30. The rotor casing 30 has an interme...  
WO/2019/039182A1
A lower end plate is provided with: a plurality of bolt holes (138) through which bolts (174, 175, 176) are passed; a lower discharge valve; a lower discharge valve accommodating recess (164S) in which the lower discharge valve is accomm...  
WO/2019/032096A1
A rotary compressor that may include an upper or outboard bearing above the motor components and, in this case, includes an upper bearing plate having a structure that ensures bearing alignment when press fit with an upper cap and a cent...  
WO/2019/031412A1
A rotary compressor (1), wherein a drive shaft (70) is configured so as to have a lower-side eccentric part (76), a countershaft part (74), and a lower-side linking part (90) that links these two parts together, and moreover is configure...  
WO/2019/031411A1
A rotary compressor (1), wherein: a lower-side connection part (90) is provided between an auxiliary shaft part (74) and a lower-side eccentric part (76) of a drive shaft (70); the distance obtained by subtracting the amount of eccentric...  
WO/2019/022953A1
A supercharger assembly includes rotors, a base plate, and a housing with an anti-fouling material on one or more surfaces where accumulation of soot and/or soot-like material may lead to mechanical friction and possibly seizing. The ant...  
WO/2019/019933A1
A double-cylinder circulating suction fan. Two cylinder bodies, namely, a front cylinder body and a rear cylinder body are disposed and serially connected , and a change-over valve (13) and side walls of the cylinder bodies cooperate wit...  
WO/2019/021550A1
The compression section (12) of this rotary compressor (1) is provided with: an intermediate partition plate (140) disposed between an upper cylinder (121T) and a lower cylinder (121S); an upper vane (127T) for dividing an upper cylinder...  
WO/2019/019760A1
A compressor and an air conditioner, wherein the compressor (1) comprises: a motor (12) and a control circuit. The motor (12) comprises a stator (122) and a rotor (124) that adapts to the stator (122), wherein the rotor (124) comprises a...  
WO/2019/021976A1
In a rotary compressor (1), a lower end plate (160S) has: a reed-valve-type lower discharge valve (200S) that opens and closes a lower discharge hole (190S); a lower-discharge-valve accommodation recess (164S) that extends from the lower...  
WO/2019/015489A1
A multifunctional air compressor (1) and a gas-electric system containing the air compressor (1), wherein the air compressor (1) comprises an air compressor suction cylinder (2a), an air compressor air circulation cylinder (2b), an air s...  
WO/2018/229459A1
A twin shaft pump comprising: two cooperating rotors configured to rotate in opposite directions about parallel axes of rotation; a stator comprising a stator bore in which the rotors are mounted to rotate. The stator bore comprises a ce...  
WO/2018/228784A1
The invention relates to a multi-stage rotary piston pump comprising two shafts in a housing, which support multiple rotary pistons. Corresponding rotary pistons form a respective rotary piston pair, wherein multiple rotary piston pairs ...  
WO/2018/224409A1
The invention relates to a dry-compressing vacuum pump, in particular a screw pump, a multi-stage Roots pump, a Roots pump, or a claw pump, having rotor elements (14) arranged in a suction chamber (12). The two rotor elements are each bo...  
WO/2018/223667A1
Disclosed is a multi-stage compressor, comprising a gas supplement structure, a low-pressure stage chamber and a high-pressure stage chamber. The gas supplement structure comprises a gas supplement inlet (1) and a perforating member (2),...  
WO/2018/223665A1
A housing structure, comprising: a housing (110), wherein the bottom of the housing (110) is provided with a plurality of legs (111); a support component (120), disposed in the housing (110) and capable of supporting a motor and a rotor ...  
WO/2018/224253A1
The invention relates to a method for monitoring an operating state of a pumping device (5) connected to a process chamber (2) with a view to determining a faulty operating state of the pumping device (5), the pumping device (5) comprisi...  
WO/2018/204218A1
A device under test cooling system has a refrigerant line and a fluid line extending through a plurality of successively arranged heat exchangers. A digital scroll compressor has an intake for providing the refrigerant mixture to the com...  
WO/2018/196489A1
Provided is a scroll compressor for a vehicle, the scroll compressor comprising: a housing (3) provided with a first opening so as to form an accommodation space; a compression mechanism; an electric motor mechanism comprising an electri...  
WO/2018/197834A1
The invention relates to a vacuum pumping system (10) which comprises a plurality of vacuum pumping arrangements (12, 14, 16) for evacuating a flammable gas stream and exhausting the gas stream through an exhaust outlet (78). A housing h...  
WO/2018/196485A1
Provided is an upright compressor, comprising a housing (3), which housing (3) is provided with a first opening; a compression mechanism comprising a static scroll plate (2), comprising a low-pressure side (202) provided with scroll teet...  
WO/2018/199061A1
Provided is an internal medium pressure two-stage compression compressor which includes, as a compressing mechanism portion 30, a first compressing mechanism portion 30A which performs low-stage compression as a first stage, and a second...  
WO/2018/184853A1
The invention relates to a pumping unit (1) comprising:a rough-vacuum pump (2) of the multi-stage dry pump type comprising at least four pumping stages (T1, T2, T3, T4, T5)mounted in series, characterized in that the pumping unit (1) com...  
WO/2018/186357A1
Provided are a closed-type compressor and a refrigeration cycle device equipped with the same, the closed-type compressor being capable of ensuring a sufficient flow passage area of a discharge flow passage for discharging a gas refriger...  
WO/2018/177249A1
A vacuuming device, comprising a main body (110), a shaft (130), a vacuum-pump rotor (146), an electric-motor stator (160) and an electric-motor rotor (170). An air inlet (114), an air outlet (116), an oil reservoir chamber (120) and an ...  
WO/2018/174463A1
The present invention relates to a twin circle positive displacement pump having a check valve, comprising: a housing having an upper chamber and a lower chamber which are vertically communicated with each other and having a fluid inlet ...  
WO/2018/169072A1
Provided is a rotary compressor which includes first and second cylinders arranged in the axial direction of a driving shaft, and in which a suction path for supplying a refrigerant, supplied through a suction pipe from an external appar...  
WO/2018/154506A1
Injector (14) for injecting a liquid formulation into a molten polymer includes outlet (21) at one end and, at its other end, is arranged to be connected to upstream conduit (25) via a coupling housing (26) so that liquid formulation can...  
WO/2018/149598A1
The invention relates to a multi-stage rotary lobe pump having a plurality of pump chambers (14) in a pump housing (16, 18). Said pump chambers form respective pump stages (26, 28, 30, 32, 34), each pump stage having two bidentate rotary...  
WO/2018/145091A1
A compressor may include a first compression member, a second compression member, and a motor assembly. The second compression member is movable relative to the first compression member and cooperates with the first compression member to...  
WO/2018/139314A1
A refrigerant in a refrigerant circuit (11) includes a hydrofluorocarbon having the characteristic of causing disproportionation reactions. A compressor mechanism (40) has provided therein: a blade (51) integrally coupled to pistons (44,...  
WO/2018/138475A1
A pump assembly and method are disclosed. The pump comprises: a first housing part defining a first portion of a bore extending within the first housing part and shaped to receive a rotor; and a second housing part defining a second port...  
WO/2018/134610A1
An inter-stage coupling for a multi-stage vacuum booster pump, a vacuum pump and a method are disclosed. The inter-stage coupling for a multi-stage vacuum pump comprises: a first coupling face configured to be received by a first adjacen...  
WO/2018/134600A1
A rotor for a multi-stage vacuum pump, a multi-stage vacuum pump and a method are disclosed. The rotor comprises: a plurality of rotary vanes, the plurality of rotary vanes being axially displaced and coaxially aligned; a pair of end sha...  
WO/2018/131111A1
Provided is a multi-stage scroll compressor configured such that vibration and noise can be suppressed and the multi-stage scroll compressor is highly reliable. This multi-stage scroll compressor is provided with: a closed container; at ...  
WO/2018/131265A1
With a first rotation angle (θ1) in the circumferential direction of a cylinder (121) of a piston (125) positioned at top dead center being 360 degrees, when the piston (125) is positioned at a third rotation angle (θ3) having the medi...  
WO/2018/130819A1
A multiple stage vacuum pump and method of configuring such a pump is disclosed. The vacuum pump comprises: multiple vacuum pumping stages arranged in series between a gas inlet and an exhaust and comprising gas flow paths between the st...  
WO/2018/121844A1
Refrigeration appliance (1) comprising a compressor (2) effectuating circulation of a refrigerant to heat exchange units through a fluid circulation circuit, said compressor (2) further having a crankshaft (6) in fluid communication with...  
WO/2018/113276A1
An air compressor for a ship. The air compressor comprises: a screw compressor (2) which is driven by a motor (1), the screw compressor (2) comprising an air compression cavity and a lubricating oil passage; an oil and gas separator (4) ...  
WO/2018/116912A1
A rotary compressor according to an embodiment of the present invention is provided with a rotating shaft, a first cylinder, a second cylinder, and a partition plate. The first cylinder is provided with a first suction path. At least the...  
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/2018/113275A1
An air compressor, comprising: an integrated screw main machine (2) which is driven by a motor (1), the integrated screw main machine (2) being used for compressing air, a lubricating oil passage being provided in the integrated screw ma...  
WO/2018/115430A1
A method for producing a scroll compressor in which a cup-shaped housing (10) is provided which has a cylindrical peripheral wall (11) and a base (12) which limit an interior housing chamber (30), wherein • - an electric motor (18), â€...  
WO/2018/115426A1
A scroll compressor having a housing (10) in which a movable displacer spiral (13), which is connected to an eccentric bearing (16) for conjoint rotation, and a stationary counterspiral (14) are situated, wherein the displacer spiral (13...  
WO/2018/110426A1
A compressor (5) is provided with a casing (10), a motor (20), and a compression mechanism (40). The casing (10) comprises a cylindrical section (11) having an inner diameter of a first size (D1). The motor (20) comprises a rotor (22) ha...  
WO/2018/110869A1
The present invention relates to a bicircular positive displacement pump comprising: a housing having an upper positive displacement chamber and a lower positive displacement chamber, which have up/down symmetry with each other, and whic...  
WO/2018/108479A1
The invention relates to a vacuum pump system, comprising a main vacuum pump (10) that is connected to a chamber (14) that is to be evacuated. An auxiliary pump (12) is connected to an outlet of the main vacuum pump (10). Furthermore, a ...  
WO/2018/105509A1
The invention relates to a compressor that extends along a longitudinal axis and comprises a casing housing a mechanism for compression of a coolant fluid, the compressor comprising at least one cover (13) comprising a metallic part (22)...  
WO/2018/103476A1
Disclosed are an air cylinder, a pump body assembly, a compressor, and a temperature adjusting apparatus. The air cylinder comprises a cylinder body (10), and a first cavity (11) and second cavity (12) formed in an axial direction of the...  

Matches 301 - 350 out of 6,128