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WO/2021/227251A1 |
A comprehensive control method and control device for stability of a rotor system of a centrifugal compressor. The method comprises: obtaining operating parameter measured actual values of the centrifugal compressor and radial vibration ...
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WO/2021/230327A1 |
There is a risk that coils of a motor provided in a CPAP device generate heat, thereby reducing the performance of the motor. A CPAP device according to the present invention includes a blower. The blower includes a motor (80) and a blow...
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WO/2021/230434A1 |
A hair dryer is disclosed, and a hair dryer according to one embodiment of the present invention comprises a main body part, a handle part, an air flow path, and a fan unit, wherein the handle part includes a handle case and a handle fra...
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WO/2021/227476A1 |
A heating pump (104) and a dish washing machine (100). The heating pump (104) comprises: a housing (1), a heating cavity (13) being provided in the housing (1), and the housing (1) being provided with a water inlet (1141) communicated wi...
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WO/2021/228490A1 |
Device (200) for monitoring a deposit of reaction by-products for the discharge (7) of a vacuum pump (1; 100), characterized in that it comprises - a thermal flowmeter (20) comprising a first temperature probe placed at an upstream locat...
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WO/2021/230480A1 |
The present invention relates to a hairdryer and, more specifically, to a hairdryer wherein a ratio between dimensions of fan unit components is appropriately changed to stabilize the flow of air introduced into a fan unit and suppress o...
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WO/2021/229116A1 |
A process for manufacturing an air movement impeller for ventilation installations, the impeller comprising a helical body and a conical external casing, the helical body being formed by a nucleus wherefrom a number of blades project rad...
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WO/2021/230874A1 |
Compressor rotor structure for turbomachinery, such as a compressor, is provided. Disclosed embodiments can benefit from sealing sleeves that may be arranged to inhibit passage onto respective hirth couplings of process fluid being proce...
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WO/2021/228169A1 |
A fan and an electric hair drier. The fan comprises an air duct (1100), of which the interior is configured to be hollow in the axial direction thereof, the air duct (1100) having an air inlet (1140) and an air outlet (1150); a rotor (14...
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WO/2021/230432A1 |
A hair dryer is disclosed. A hair dryer, according to one embodiment of the present invention, comprises: a main body part; a grip part; an air channel; and a fan unit. The grip part comprises: a grip case which has an internal space for...
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WO/2021/228277A1 |
An air-cooling refrigerator supplying air by using a centrifugal fan, comprising a bottom liner, an air channel back plate, and the centrifugal fan. A cooling chamber and a storage space are defined in the bottom liner; the air channel b...
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WO/2021/230869A1 |
Compressor rotor structure and methodology for harmonizing compressor aerodynamics and rotordynamics are provided. Disclosed embodiments benefit from a compressor design effective for improving rotordynamics (e.g., stiffer rotor structur...
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WO/2021/230217A1 |
The present invention suppresses disorder in the flow of air occurring within a fan case. A blower in a continuous positive airway pressure (CPAP) device is provided with a fan and a fan case. An annular channel (S2) and an outlet channe...
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WO/2021/227979A1 |
A ceiling fan, comprising: a housing (10), wherein a first hollow portion (11) is formed at the bottom of the housing (10), and a second hollow portion (12) is formed on the side portion of the housing (10); an air-blowing fan wheel (20)...
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WO/2021/223345A1 |
A multifunctional fan (100), which comprises: a fan body (10), configured to generate an airflow to form wind; a deformable connecting pipe (20), one end of which is connected to the fan body (10), wherein the deformable connecting pipe ...
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WO/2021/226352A1 |
A 3D seal assembly is provided. The 3D seal assembly includes a rotational assembly and a stationary assembly for high misalignment operating environments. The rotational assembly includes a sleeve and a collar coupled together. The stat...
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WO/2021/223601A1 |
A combined fan device, comprising a fan unit. The fan unit comprises a fan body (11), a pivoting base (12), and a charging base (13), wherein the charging base (13) is internally provided with a battery and a power supply control mainboa...
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WO/2021/223912A1 |
The centrifugal compressor (100) has a housing (110) with two or more compressor inlets (120) for process gas to be compressed; an impeller (130) is located inside the housing (110) so to receive an inlet flow of process gas from the two...
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WO/2021/226320A1 |
A submersible well pump (11) has a rotatable drive shaft (23) extending through pump stages. Each of the stages has a diffuser (15), an impeller (17) and a bushing (39) fixed for non-rotation in the diffuser (15). A thrust member (33) ha...
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WO/2021/225024A1 |
An impeller main body (20) has a plurality of vanes (22). A shroud (30) is press-molded into a shape which extends along the tip end sections of the vanes (22). The surface of the shroud (30) on the impeller main body (20) side thereof i...
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WO/2021/224558A1 |
The invention relates to a turbomachine having a compressor comprising variable pitch stator vanes (11) each extending radially between a rotating hub (6) and a stationary casing (3) surrounding this rotating hub (6), each variable pitch...
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WO/2021/223923A1 |
The invention relates to a compressor (1) for conveying an air flow and/or a gas flow, and to a ventilator or anaesthetic machine having a compressor (1) of this kind. The compressor (1) has a housing, in the housing interior (3) of whic...
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WO/2021/226640A1 |
The invention is an aero-acoustic comminution apparatus which includes an aero-acoustic comminution machine 10 having a cyclone chamber 12 with an inlet 14 for the material to be comminuted and an inlet 16 for the air. An electric motor ...
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WO/2021/219245A1 |
The present utility model relates to a water pump for an engine cooling system. The water pump comprises: a water pump housing defining a water sealing hole; a pump shaft rotatably supported in the water pump housing; a water seal sleeve...
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WO/2021/219678A1 |
The invention relates to a bowl pump and a vertical bowl pump arrangement. The bowl pump (1) comprises a pump housing (10), a hub (14) and guide vanes (23) extending between the hub (14) and pump housing (10). The guide vanes (23) has a ...
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WO/2021/217792A1 |
Disclosed in the present invention is a combustion assembly structure of a turbojet engine. A guide device and a front cover are respectively provided at two ends of a casing having a cavity structure in the middle, a shaft sleeve coaxia...
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WO/2021/218708A1 |
Disclosed are a heat collection pump (10), a household appliance (100), and a method for assembling the heat collection pump (10). The heat collection pump (10) comprises a pump housing (11), a heating element (30), and a sealing element...
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WO/2021/220701A1 |
An impeller (32) is connected to a first end portion (25a) of a rotation shaft (25) in the axial direction. The rotation shaft (25) is supported by a pair of air bearings (40) rotatably relative to a housing (11). The pair of air bearing...
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WO/2021/219540A1 |
The invention relates to a centrifugal pump assembly comprising an electric drive motor (2), at least one impeller (14) driven by said electric drive motor (2) and a valve element (24; 24') rotatable between two valve positions driven by...
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WO/2021/219461A1 |
The invention relates to an exhaust gas turbocharger (30) with a silencer. The silencer comprises a multiplicity of damping elements (41) which are arranged concentrically about a central axis (42) of the silencer and are spaced apart co...
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WO/2021/220469A1 |
The blower according to the present disclosure is provided with a propeller fan that rotates about a rotation axis, and a bell mouth of the duct type surrounding the outer circumferential side of the propeller fan. The propeller fan comp...
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WO/2021/218728A1 |
A rotor assembly (1), the rotor assembly (1) being an injection molded piece, and comprising a first shaft sleeve (13) and a rotor (14); a first injection molded body (11) is formed by using the rotor (14) and the first shaft sleeve (13)...
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WO/2021/219584A1 |
The invention relates to a method for monitoring and controlling the operation of a pump station (1) comprising a tank (8) for storage of a liquid and at least one pump (2), the pump station (1) further comprises an outlet conduit (5) co...
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WO/2021/221294A1 |
The present invention relates to an air compressor for a vehicle and, more specifically, to an air compressor for a vehicle, wherein the entire operation of the air compressor can be stabilized by a cooling unit in which a portion of the...
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WO/2021/213783A1 |
The invention relates to a hydrodynamic machine (1) for supplying air to a fuel cell system, comprising at least one impeller (3) conjointly connected to a shaft (2), and an electric motor (4) for driving the shaft (2), the shaft (2) bei...
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WO/2021/217026A1 |
A cooling assembly configured to reduce backflow suction in a mobile platform including a prime mover, at least one heat exchanger fluidly connected to the prime mover, a blower upstream of the at least one heat exchanger configured to g...
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WO/2021/215471A1 |
This impeller is provided with a discoidal hub centered on the axis, and a plurality of blades jutting from a surface facing one axial-directed side of the hub and arrayed circumferentially. The blades, in a cross-sectional view along a ...
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WO/2021/214427A1 |
A high vacuum pump with low outgassing characteristics, its method of manufacture and use is disclosed. The high vacuum pump comprises: an inlet and an outlet and at least one pumping chamber located between the inlet and the outlet. At ...
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WO/2021/214311A1 |
Embodiments of a compressor stage, in particular for a turbocharging system and/or a turbocompound, and a process for operating a compressor stage are provided herein. The compressor stage comprises an impeller, and a vaned diffuser arra...
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WO/2021/214939A1 |
This air conditioner comprises: a fan casing for housing a fan; and an annular bell mouth mounted to the fan casing. A peripheral edge section of an upstream-side opening in the bell mouth has a minimum portion at which the distance from...
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WO/2021/208497A1 |
A head assembly, an air duct system, and a fan. The head assembly comprises an air outlet duct (1) and air guide plates. The air outlet duct (1) is divided by a plurality of air guide plates into a plurality of air outlet portions. Each ...
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WO/2021/209171A1 |
The present invention relates to a closed loop subsea cooling system with a subsea cooler. An coolant pump assembly (2) is located in a dedicated, sealed, gas filled, coolant pump housing (8a) in coolant fluid connection with the at leas...
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WO/2021/210201A1 |
An impeller comprises: a rotary-driven main plate; an annular side plate that is arranged facing the main plate and that forms a gas intake port; and a plurality of vanes that are connected to the main plate and the side plate, the plura...
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WO/2021/208155A1 |
The present invention relates to the field of household appliances, and in particular, to an air circulating device, an air purifier, and an air humidifier. The air circulating device comprises a support base, a fan, a centrifugal wind w...
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WO/2021/208496A1 |
Disclosed are a mixed flow wind wheel, a fan assembly, a power system, and a fan. The mixed flow wind wheel comprises a hub (1) and a plurality of blades (2) arranged in the circumferential direction of the hub (1); each of the blades (2...
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WO/2021/211069A1 |
The invention relates to a housing for the radial fan of the range hood (1), comprising a spiral hollow body (30) surrounding an inner chamber (2); an air outlet (31) disposed on an upper end (36) of the body (30) to reach the inner cham...
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WO/2021/210164A1 |
A scroll casing provided with a scroll section forming a scroll flow path of a centrifugal compressor, wherein the scroll section includes a first arcuate section, which extends in one direction (toward a fourth position) from a position...
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WO/2021/210127A1 |
An impeller provided with a main plate that is rotationally driven, an annular side plate that is arranged opposing the main plate and that forms a suction port for a gas, and a plurality of vanes connected to the main plate and the side...
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WO/2021/208500A1 |
A fan control panel (100) and a fan. The fan control panel (100) is mounted on a bladeless fan body (200) and is used for controlling a fan. The fan control panel (100) comprises: a support cylinder (2) that is fixed onto the bladeless f...
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WO/2021/210629A1 |
A charger according to the present invention may be provided with: a casing having an air intake port and an exhaust port; an inner wall extending from an inner surface of the casing, and demarcating an accommodation space between the in...
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