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Patent Searching and Data


Matches 1 - 50 out of 5,701

Document Document Title
WO/2019/049398A1
Provided is a multistage centrifugal fluid machine with which the work of assembling an inner casing to a high-pressure-side head flange can be carried out efficiently. The multistage centrifugal fluid machine 100 comprises a rotor 3 to ...  
WO/2019/038436A1
A radial fan comprising: a plurality of blades rotatable about an axis of rotation and extending radially from the axis of rotation; characterised in that each of the blades has a transverse profile that is symmetrical about a radial lin...  
WO/2019/034877A1
A pump and method for pumping a gas are disclosed. The pump comprises a rotor and a stator. At least one of the rotor or stator comprises at least one liquid opening configured for fluid communication with a liquid source. The liquid ope...  
WO/2019/020285A1
The invention relates to a turbomachine (10), in particular for a fuel cell system (1). The turbomachine (10) comprises a shaft (14), an impeller wheel (15) and an axial bearing disk (30). The impeller wheel (15) and the axial bearing di...  
WO/2019/020939A1
The present invention concerns an air pulser (1) for a heating, ventilation and/or air conditioning device for a motor vehicle, according to which said air pulser (1) comprises: - an electric motor (10) comprising a drive shaft (100) and...  
WO/2019/020288A1
The invention relates to a turbomachine (10), in particular for a fuel cell system (1). The turbomachine (10) comprises a shaft (14), an impeller wheel (15) and an axial bearing disk (30). The impeller wheel (15) and the axial bearing di...  
WO/2019/012578A1
An indoor unit for an air conditioner is provided with a cross flow fan. An impeller of the cross flow fan has a plurality of blades each having a first end part and second end part as end parts along the direction of a rotary shaft, and...  
WO/2019/008369A1
A damper and method are disclosed. The apparatus comprises: a damper having an inner hub for receiving a rotatable structure and a concentric outer mount coupled with the inner hub by at least one spring member which defines at least one...  
WO/2019/004595A1
The present invention relates to an air compressor which may comprise: a compressor part including a front housing and a compressor impeller, wherein the front housing is provided with a front inlet through which air is introduced and a ...  
WO/2019/001911A1
The invention relates to a turbo compressor (1) comprising a compressor housing (2) in which at least one first compressor stage (13) and a second compressor stage (14) are provided. A respective impeller (5, 6) is arranged on a drivesha...  
WO/2019/001910A1
The invention relates to a return geometry of a turbocompressor for fluidically connecting a first stage and a second stage of the turbocompressor, said return geometry comprising multiple partial helices which extend at least in part in...  
WO/2018/230254A1
Provided is a cross flow fan of which an internal stress is reduced without detracting from manufacturing efficiency. During the manufacture of the cross flow fan, fan components (1, 2, 3) are ultrasonically welded and assembled while be...  
WO/2018/217594A1
Most multistage compressors specify a maximum inlet pressure that may be supplied to the compressor to stay within designed limits. If the supply gas to be compressed is at a higher pressure than the specified maximum inlet pressure, the...  
WO/2018/214636A1
A rotary fluid machine adopts a cross-flow structure having an automatic rotating blade (1). Rotation of a rotary wheel (2) once through 720 degrees is a cycle. Automatic rotation of the blade (1) is driven by a guide rail curving throug...  
WO/2018/212990A1
A seal apparatus (58) for a casing (12) of a turbomachine (10). The seal apparatus (58) may include an annular body (60) having first (66) and second (88) annular body portions and an appendage (94). The second annular body portion may e...  
WO/2018/207669A1
The radial load of a drive shaft (30) is supported only by a plurality of bearingless motors (60, 70). The maximum values of the radial load applied to the respective bearingless motors (60, 70) are nonuniform. In the bearingless motor (...  
WO/2018/209213A1
One feature pertains to an air mover the includes a direct current (DC) electric motor, an impeller operatively coupled to the DC motor, a battery electrically coupled to the DC motor, and a housing that includes the DC electric motor, t...  
WO/2018/205631A1
Provided are a back-flow device blade, a compressor structure and a compressor. The back-flow device blade (4) comprises a blade body (1), wherein a hollow cavity (2) is formed inside the blade body (1), and an air supplementing hole (3)...  
WO/2018/207767A1
A drive support unit (160, 170, 180, 250, 260, 450, 460, 621, 640, 760, 770, 780, 782, 784, 787, 840, 850) of a turbo compressor (101, 210, 410, 601, 701, 812) comprises at least one bearingless motor (160, 170, 250, 450, 640, 760, 770, ...  
WO/2018/207018A4
A blower comprising: (a) a stator including: (i) one or more magnets and (ii) an impeller having a cup that receives the magnet; (b) a stator including: (i) an arbor; and (ii) motor windings; (c) a printed circuit board; and (d) a contac...  
WO/2018/207018A1
A blower comprising: (a) a stator including: (i) one or more magnets and (ii) an impeller having a cup that receives the magnet; (b) a stator including: (i) an arbor; and (ii) motor windings; (c) a printed circuit board; and (d) a contac...  
WO/2018/206843A1
A method for controlling a vacuum pump comprises: measuring (101) inlet pressure of the vacuum pump, determining (102) an estimate for theoretical suction speed based on data indicative of rotational speed of the vacuum pump and data ind...  
WO/2018/204350A1
A double suction impeller features an impeller main body and an impeller suction eye. The impeller main body may include a suction eye adapter coupling member. The impeller suction eye may include a removable suction eye adapter having a...  
WO/2018/197622A1
The invention relates to an internal combustion engine (42) for a motor vehicle, comprising at least one exhaust gas turbocharger (20), which has at least one turbine (20), drivable by exhaust gas of the internal combustion engine (10), ...  
WO/2018/198808A1
Provided is a centrifugal compressor comprising: an impeller (compressor impeller 10); a primary flow path 12 that has the impeller disposed therein and extends in a direction of a rotation axis of the impeller; a secondary flow path 21 ...  
WO/2018/197174A1
Method for controlling a plural stage compressor comprising at least a first stage (10), a second stage (20) and a first inter-stage line (12) between the first stage (10) and the second stage (20), comprising the steps of: a- measuring ...  
WO/2018/180057A1
An intake-and-discharge flow channel (30) is provided with a circumferential flow channel (40) extending in an arc shape centered about an axis (O), and an external communication channel (50) connected to both ends of the circumferential...  
WO/2018/177543A1
A cross Flow Fan CFF (10) with variable blade angles is provided. This means that the angle of each blade (18) can vary in relation to the body of the impeller (16) between a maximum and minimum value in the span of one revolution of the...  
WO/2018/181343A1
This centrifugal compressor is provided with: a plurality of stages of impellers (4) arranged in the axial line (O) direction and forcibly feeding a working fluid introduced from an one-side inlet in the axial line (O) direction to the o...  
WO/2018/166716A1
The invention relates to a backfeed stage (BFS) of a radial turbo fluid energy machine (RTFEM), in particular of a radial turbo compressor (RTC), for deflecting a flow direction (FD) of a process fluid (PF) flowing out of an impeller (IM...  
WO/2018/162655A1
The bearing arrangement includes a one-piece gas bearing sleeve (32) configured to rotatably support the drive shaft (4) and made in molybdenum or in a molybdenum alloy, the one-piece gas bearing sleeve (32) including a radial bearing su...  
WO/2018/162667A1
The centrifugal turbo-compressor (2) includes a hermetic casing; a drive shaft (6); a first and a second compression stage (12, 13) configured to compress a refrigerant and respectively including a first and a second impeller (18, 19) co...  
WO/2018/161948A1
Disclosed is a vertical composite radial flow molecular pump, comprising a pump cylinder (11) with the upper end being open, wherein a side wall of the pump cylinder (11) is provided with an air inlet (12) and an air outlet; a radial flo...  
WO/2018/162204A1
The invention relates to an electric machine (40) comprising: a housing (12), a stator, a rotor which is rotatably mounted in a receiving area of the stator, a cooling device for discharging heat out of the housing (12), a heat exchanger...  
WO/2018/162660A1
The double-stage impeller arrangement (17) includes a first impeller (18) and a second impeller (19), each of the first and second impellers (18, 19) having a front-side (21, 22) and a back-side (25, 26), the first and second impellers (...  
WO/2018/163574A1
This air conditioner comprises: a suction opening; a fan for sucking air from the suction opening; a heat exchanger for exchanging heat with the air having been sucked from the suction opening; a discharge opening for discharging air hav...  
WO/2018/154931A1
The present invention addresses the problem of providing a centrifugal pump with which thinning is achieved by using a radial gap type motor, with which flow passage losses from a suction flow passage to a discharge flow passage are smal...  
WO/2018/155546A1
According to the present invention, a casing that surrounds a rotary shaft and impellers (4) comprises: return flow paths; and pluralities of return vanes (50) that are provided in the return flow paths at intervals in the circumferentia...  
WO/2018/153583A1
A recirculation stage (RCH) of a radial turbomachine (RTM) having at least one stator vane stage (VST), wherein the recirculation stage (RCH) extends in annular fashion around an axis (X), wherein the recirculation stage (RCH) is defined...  
WO/2018/148789A1
A compact respiratory therapy device suitable for use by a patient during sleep to provide respiratory pressure therapy such as at a pressure between 4-30 cmH2O includes a housing, an inlet, an outlet, a motor including a rotor, and an i...  
WO/2018/151293A1
This centrifugal compressor is provided with: an impeller which rotates about a main shaft (4); a plurality of stages of compressing units (6) including a return flow passage (63) which has a return vane (64) for guiding a main flow of a...  
WO/2018/147993A1
A centrifugal gas compressor with rotating hollow housing and an independently rotating turbine compresses gas bubbles in capillary tubes and recovers energy from the liquid drain (sometimes a liquid recycler). The housing rotatably reta...  
WO/2018/145838A1
Return stage, radial turbomachine The invention relates to a return stage (RTC) through which a process fluid is designed to flow along a throughflow direction of a radial turbomachine (RTM), in particular a radial turbo compressor retur...  
WO/2018/143135A1
A cross-flow-type blower (30), wherein the relationship between an angle θ when the position of a protrusion (71) relative to a volute tongue point (O) of a scroll wall part (37a) is represented by the center angle of a fan rotor (31) a...  
WO/2018/138438A1
The invention relates to a wheel blade (40) for a turbomachine compressor. The blade (40) comprises a body (41) extending between the root (P) of the blade in the direction of the height (Y-Y) of the blade. The body (41) extends from a l...  
WO/2018/130690A1
A fan wheel (1) comprising a base disc (3) and a cover disc (2) that has an axial inlet opening, and a blade ring arranged between the base disc (3) and the cover disc (2) and formed from fan wheel blades (4) to convey a conveyed medium,...  
WO/2018/113855A1
The invention relates to a fan module comprising at least one fan (1), possibly a nozzle plate (5) and a suspension (10). Said fan module has a device on the pressure side to reduce or suppress a backflow and to even out the air flowing ...  
WO/2018/111457A1
A compressor (22) comprises: a housing (50); a shaft (70); a plurality of bearings (66, 67, 68, 74, 76) mounting the shaft to the housing for relative rotation about an axis (500); and a motor (52). The motor has: a rotor (64) mounted on...  
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/2018/104719A1
An improved cooling arrangement for a vacuum pump motor and control is provided; wherein both the motor and control are provided with cooling mechanisms and housed in respective housings connected by at least one opening. The cooling mec...  

Matches 1 - 50 out of 5,701