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WO/2021/213730A1 |
The invention relates to a method for operating a turbo-machine driven by an electric motor, more particularly a compressor for providing the requested air mass flow for an internal combustion engine or a fuel cell, in which, to prevent ...
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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/2021/214190A1 |
The invention relates to a method for controlling the variable-pitch vanes of a guide (121) of a low-pressure compressor (120) of an aircraft turbine engine (100) on the basis of a plurality of pre-obtained parameters relating to said lo...
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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/2021/205107A1 |
A discharge grid (22) designed to be mounted inside or at the outlet of a line (21) of a discharge valve (20) of a turbomachine (1) of an aircraft, the discharge grid (22) comprising an upstream face (24) designed to receive a gas flow (...
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WO/2021/205120A1 |
An acoustic treatment grid (22) designed to be mounted inside or at the outlet of a line (21) of a discharge valve (20) of a turbomachine (1) of an aircraft, this being designed to convey a gaseous flow (F), the grid (22) comprising a pe...
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WO/2021/205127A1 |
The invention relates to an inlet guide vane (20) for an aircraft turbine engine, this inlet guide vane (20) comprising: - an inner annular shroud (22) extending around an axis (X), - an outer annular shroud (24) extending around the axi...
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WO/2021/198067A1 |
The invention relates to an air delivery device (1) having one or more rotatable air delivery elements (2) which are driven by a motor and are connected to a shaft (3) mounted via at least one roller bearing (4), wherein a rotation of th...
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WO/2021/193123A1 |
A control system (500) is provided with: a plurality of blower units (for example, a first blower unit (240a), a second blower unit (240b), and a third blower unit (240c)), in a plurality of locations arranged in the horizontal direction...
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WO/2021/192510A1 |
A ceiling fan (1000) can be secured to a ceiling. A first communication unit (230) carries out communication that corresponds to a first communication scheme. A second communication unit (250) carries out communication that corresponds t...
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WO/2021/191354A1 |
The invention relates to a method of installing a subsea system (1) comprising the steps of: - installing at least one first foundation structure (13') on a seabed, wherein the first foundation structure (13') comprises a connection inte...
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WO/2021/186848A1 |
A dimming control circuit (150) outputs a pulse width modulation (PWM) signal. A current control circuit (160) outputs a direct current with a magnitude corresponding to the PWM signal from the dimming control circuit (150). A light sour...
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WO/2021/180703A1 |
The invention describes a method as well as an apparatus for controlling the speed of a pump with a variable speed drive within an cyclic application that comprises repeated cycles each consisting of a pump down phase and a holding phase...
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WO/2021/177140A1 |
An environment regulating device (1) which regulates an interior space environment includes an air blowing device (10) provided with a plurality of air blowing fans arranged in a matrix. A control device (50) which controls the environme...
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WO/2021/176905A1 |
An identification method for identifying the type of fan motor unit in an air blowing system comprising a fan motor unit, which has a motor, a fan, and a case, and which blows air to the outside, and a control unit, which controls the fa...
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WO/2021/173099A1 |
The present invention relates to a mobile tracking system that measures pressure, temperature, flow rate of hydraulic pumps/systems for land vehicles (damper truck, construction equipment, garbage truck, on-board crane, terrain vehicles ...
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WO/2021/170087A1 |
The present invention relates to the field of fuel cells, and in particular, to a fuel cell control system and a fuel cell control method. The fuel cell control system comprises: a reactor (20); an air compressor (10) having a compressio...
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WO/2021/169164A1 |
The present application provides a traction converter, comprising: a housing assembly; a first circuit assembly located in the housing assembly; a power module which comprises a second circuit assembly located in the housing assembly, th...
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WO/2021/171789A1 |
This air flow environment system (101) comprises: a plurality of blowers of a blower system (107); a merging duct and a discharge port (105); a reflection part (108); and a control unit. The merging duct merges air flows respectively pro...
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WO/2021/170534A1 |
Method to operate a vacuum system comprising at least a first vacuum pump and a second vacuum pump wherein the first vacuum pump and the second vacuum pump are connectable to a vacuum chamber to maintain a set pressure inside the vacuum ...
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WO/2021/155665A1 |
A fan power control method and system using second-order sliding mode estimation. The method comprises: calculating a rotation speed estimation value of a fan by means of second-order sliding mode estimation, and obtaining the maximum po...
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WO/2021/155197A1 |
A fan controller for a ceiling fan is provided. The fan controller includes one or more switching devices configured to selectively couple the ceiling fan to a power source. The fan controller includes a first capacitor having a first ca...
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WO/2021/153852A1 |
An air blower according to an embodiment of the present invention comprises: a support body through which a suction part is formed; a tower coupling part which is formed above the support body and in which a rotation module is installed;...
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WO/2021/144552A1 |
Aspects of the present invention relate to apparatus (25) for determining an operating state of a valve (15) disposed in a conduit (9) coupled to a vacuum pump (5) in a vacuum system (1). The apparatus (25) includes at least one sensor (...
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WO/2021/143915A1 |
Disclosed are a control method and apparatus, and a storage medium, belonging to the technical field of electric motor control. The method comprises: receiving a control signal from a stepper motor, wherein the control signal is used for...
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WO/2021/142327A1 |
An economizer control system includes a compressor including a compression area, a piston chamber, and an economizer inlet configured to receive economizer vapor into the compression area via a flow path that extends between the economiz...
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WO/2021/139936A1 |
The invention relates to a method for operating a fuel cell system (22) which comprises at least one component (42) which degrades, ages and/or wears during operation of the fuel cell system (22), which affects the actual service life of...
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WO/2021/128487A1 |
A fan (100), comprising: a vertical post assembly (102); a fan head (104); a hinge assembly (106) comprising a first connection member (1060) and a second connection member (1061) which are hinge-connected, the first connection member be...
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WO/2021/131532A1 |
This blower is provided with a fan for blowing, a motor for driving the fan, a sound input unit for acquiring input speech, and a control unit that performs predetermined control in accordance with the input speech, wherein the control u...
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WO/2021/121899A1 |
The invention relates to a method for operating a multistage air compression system for a fuel cell system. At least one stage of the air compression is carried out using a compressor (1) with a compressor wheel (2) which is arranged on ...
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WO/2021/124953A1 |
The present invention provides a compressor system including a plurality of compressor trains each including a gas turbine and a compression part including a compressor driven by the gas turbine, and a fluid feeding part for distributing...
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WO/2021/121799A1 |
The invention relates to a side channel compressor (1) for a fuel cell system (37) for conveying and/or compressing a gaseous medium, in particular hydrogen, comprising a housing (3) and a drive (6), wherein the housing (3) has a housing...
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WO/2021/114485A1 |
An anti-surge structure for a maglev air compressor comprises a volute (1), an air inlet channel (2), an impeller (3), an end cover (4), a position-limiting block (5), a displacement sensor (6), and a first air inlet (9) and a second air...
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WO/2021/114486A1 |
A structure for adjusting a gap between an air inlet passage and an impeller, comprising a volute (1), an air inlet passage (2), an impeller (3), a displacement sensor (4), a servo screw motor (6) and a nut (9); the air inlet passage (2)...
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WO/2021/118558A1 |
Some embodiments of the present disclosure relate to a method that includes disposing a vapor pump partially within an enclosure, such that the vapor pump is in fluid communication with the enclosure and an external environment, and wher...
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WO/2021/116141A1 |
A method for operating a fluid conveying device (4), in particular a pump, a fan, a compressor or a valve, by way of a control unit (14), wherein the fluid conveying device with a deactivated emergency running mode is switched on at leas...
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WO/2021/112021A1 |
Provided are an evacuation device capable of controlling the pressure in a chamber to be evacuated accurately and at high speed, and a vacuum pump used in the same. The evacuation device is provided with: a vacuum pump (1) including a ro...
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WO/2021/109053A1 |
An electric fan swing angle adjusting and sampling device, comprising an alternating current motor (1), an angle-changing gearbox (5) having a planetary gear crank mechanism (7), and a magnetic attraction device (3); the magnetic attract...
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WO/2021/096905A1 |
A compressor according to an exemplary aspect of the present disclosure includes, among other things, a mixed compression stage having both axial and radial components arranged along a main flow path, and a radial compression stage havin...
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WO/2021/096920A1 |
An air induction system for a vehicle includes a turbocharger having a compressor side inlet and a bifurcated clean air intake system having a bifurcated conduit. The bifurcated conduit includes an upstream end configured to receive inta...
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WO/2021/083579A1 |
The invention relates to a method for operating a fuel cell system with a fuel cell, to which a cathode gas, such as air, is supplied on a cathode inlet side by means of an electrically powered gas supply device (30) which is designed as...
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WO/2021/077902A1 |
A fan speed regulation system and method. The system comprises a monitoring board (10), a signal back board (20), at least one temperature sensor array (30), at least one fan collection board (40), and at least one fan array (50), the mo...
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WO/2021/073226A1 |
A combined direct-current variable-frequency compressor unit, an air storage tank (2) is arranged on the outer surface of the upper end of a fixed bottom plate (1), a first air outlet pipe (3) is arranged on the outer surface of the uppe...
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WO/2021/076588A1 |
A method of preventing over-pressurization of a downstream piping network, using a safety VFD, includes continuously receiving, from sensors attached to an ESP, values representing input/output operating parameters of the ESP. The ESP is...
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WO/2021/074576A1 |
There is provided a fan assembly comprising a base arranged to support the fan assembly on a surface, an air flow generator that is arranged to generate an air flow, and an air outlet that is arranged to emit at least a portion of the ai...
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WO/2021/068732A1 |
A method for suppressing the resonance of a vehicle-mounted fan, and a system. The method comprises: according to the difference between the actual vibration value and a preset vibration value of a fan, determining whether resonance is g...
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WO/2021/063805A1 |
A turbomolecular vacuum pump (1) comprises a stator (2), a rotor (3) configured to rotate in the stator (2) about an axis of rotation (I-I) and a regulation valve (13) configured to modify the inlet conductance of said vacuum pump (1) by...
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WO/2021/067637A1 |
A heating, ventilation, and/or air conditioning (HVAC) system (10) includes a compressor (32) having an impeller (200) configured to rotate and drive a working fluid through a working fluid circuit (152) of the HVAC system (10) in an act...
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WO/2021/063604A1 |
The invention relates to a compressor (30). In order to increase the operating efficiency of the compressor (30), the compressor (30) is equipped with a structure-borne sound detector (33), which is used during the operation of the compr...
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WO/2021/060372A1 |
According to the present invention, a blade (6) has: a wing section (14) that blows air; and a base section (13) fixed to a support section. This ceiling fan can be provided in such a manner that: a first end section (7a) in a falling pr...
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