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WO/2021/155923A1 |
The invention relates to a method for operating an electric air compressor assembly, especially in a vehicle, said assembly including an electric motor and a compressor which is mechanically coupled to the electric motor and which is cap...
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WO/2021/152763A1 |
A portable terminal having installed therein a monitoring application for monitoring the operation state of a fluid machine, the portable terminal performing wireless communication with the fluid machine. The portable terminal is provide...
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WO/2021/153111A1 |
The present invention includes: a temperature and rotation-speed sensor 33 that is disposed near a coil of a motor 6 and that measures the temperature of the motor 6; a temperature sensor 35 that measures the ambient temperature of a por...
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WO/2021/152341A1 |
This oil suction device comprises a plurality of suction units positioned in an oil reservoir in the lower part of an in-vehicle device where oil is supplied by an oil pump, and an oil passage switching unit connected to each of the plur...
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WO/2021/149162A1 |
The present invention comprises: a compressor (1) that has a compression mechanism (7) for compressing a refrigerant and a motor (8) for driving the compression mechanism (7); an inverter (103) that applies a desired voltage to the motor...
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WO/2021/149325A1 |
Provided is a technology for reducing the capacity of a liquid feeding pump and enabling liquid feeding with little pulsation. A liquid feeding pump according to the present disclosure is provided with: a first plunger pump having a firs...
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WO/2021/140885A1 |
Provided is a device for assisting in assigning settings values for a compressor controller, the device making it possible to determine suitable controller settings values, ensure a stable air supply, improve energy efficiency, and avoid...
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WO/2021/140049A1 |
The invention relates to a compressor system and to a method for operating a compressor system according to the compressed-air demand in an operating state of the vehicle. A compressor system according to the invention comprises a compre...
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WO/2021/140068A1 |
The invention relates to a method for operating a high-density solids pump (1), - the high-density solids pump (1) comprising: - a high-density solids delivery system (2), the high-density solids delivery system (2) being designed to del...
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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/2021/138308A1 |
In one general aspect, the present application relates to a leak detection device that includes a body, a liquid separator, and a liquid level detector. The body includes an airflow inlet, an airflow outlet, and a liquid reservoir. The a...
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WO/2021/138659A1 |
A peristaltic metering pump for aquariums, vivariums and terrariums, comprising an inlet port (36); an outlet port (38); a stator (18) having an internal surface (19); a tubing (30) having an inlet end (32) connected to the inlet port (3...
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WO/2021/132606A1 |
This compressor control method is for controlling the vibration amplitude of a compressor provided with a motor by using the motor. The compressor is a device driven by the motor, and the compressor control method controls vibration ampl...
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WO/2021/130583A1 |
A pump system and methods for operating the same are described. The pump system includes a first pump chamber and a second pump chamber. A valve is fluidly coupled to the first pump chamber and the second pump chamber. The valve is opera...
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WO/2021/119789A1 |
Method and system for reducing the noise generated during a starting failure of a compressor motor and for allowing the piston (15) to be positioned in a position more favorable for a new start, the method being executed by a failure det...
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WO/2021/120388A1 |
The present application provides a pressure protection circuit, a control method, and a computer-readable storage medium. The pressure protection circuit comprises: a driving module electrically connected to a compressor; a pressure swit...
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WO/2021/124557A1 |
A compressor system comprising a compressor that has a bearing for supporting a rotating shaft, a sensor that measures an index value associated with movement of the rotating shaft during operation of the compressor, and a wear detection...
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WO/2021/124087A1 |
A multi-cylinder reciprocating compressor for cooling systems and/or conditioning systems and/or heat pumps, comprising a casing, in which at least one first group of at least three cylinders is provided, in which cylinders respective su...
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WO/2021/120262A1 |
A method and apparatus for controlling the hydraulic pump flow rate of a vacuum cleaner, and a device. The method comprises: S1, obtaining a change in the output power of a suction motor by means of detecting the current and/or voltage o...
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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/2021/118973A1 |
Systems, methods, and a computer readable medium are provided for automatically determining pumping methods within an oil production environment. Sensor data can be collected from pumps configured in the oil production environment and ca...
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WO/2021/110202A1 |
The invention relates to a pump unit (100) and to a method for controlling same, in particular for actuating and/or providing a supply to at least one component of a drive train of a motor vehicle by means of at least one setpoint volume...
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WO/2021/109642A1 |
An air supply control method and device, a storage medium, and a vehicle. The method comprises: determining an allowable operating time of an air compressor (12) of a vehicle, and determining the priorities of N pneumatic systems supplie...
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WO/2021/109343A1 |
Provided are a control circuit, air conditioner, and control method, the control circuit comprising: a drive module (102); a drive circuit (104), the drive circuit (104) being connected to the drive module (102); a first switch module (1...
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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/2021/111175A1 |
A pump (10) for exerting a compression action on a fluid, comprises a casing (12) for rotatably supporting a corresponding shaft (14) having a respective rotation axis (140); means (16) for actuating said fluid, which are in the form of ...
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WO/2021/104877A1 |
The invention relates to a compressor system (1) for a rail vehicle, having: a compressor (10), a cooling device (40) and a control device (30) or an interface for receiving control signals of a control device (30), wherein the control d...
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WO/2021/100279A1 |
A motor drive device (30) of the present disclosure comprises a brushless DC motor (5) that drives a piston of a reciprocating compressor (17), and a piston-position-changing unit (11) that rotates the brushless DC motor (5) so as to shi...
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WO/2021/093198A1 |
A water feeder and a water quantity customization method thereof. The steps of the water quantity customization method comprise: entering a water quantity customizing mode; performing a water discharging operation once and obtaining the ...
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WO/2021/090414A1 |
This air conditioning device (1) has an indoor unit (3) and an outdoor unit (2) including a compressor (21) for compressing a refrigerant and an electric motor drive device (22) for driving the compressor (21). The electric motor drive d...
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WO/2021/088620A1 |
Provided are a water pump unit power-saving optimized operation method and switch point determination method. In parallel pump units, k water pumps of the same model equipped with frequency converters constitute a sub-pump unit A; using ...
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WO/2021/090125A1 |
According to an embodiment, the invention comprises a compressor (100) configured for compressing and supplying a gas to a pneumatic network (311) comprising one or more pneumatic consumers (300-302), the compressor (100) comprising a co...
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WO/2021/090486A1 |
A variable displacement hydraulic pump (16) is driven by an engine (12), and ejected operating oil is selectively supplied to a cooling fan (19) and a hoist cylinder (11) in accordance with switching of a selecting valve (17) to drive an...
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WO/2021/083953A1 |
The invention relates to a method for determining operating properties of a drill-rod borehole pump (1), comprising a pump head (110), which is connected to a kinematics converter (120) via a drill rod (5, 10), and the kinematics convert...
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WO/2021/085066A1 |
In the present invention, a start-up torque and a rotation start position of a brushless DC motor (5) are determined such that vibration when operation of a compressor (17) is started and vibration due to a decrease in load torque cancel...
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WO/2021/084821A1 |
Provided are a compressor, a monitoring system, and a method of monitoring a compressor, which can monitor the remaining life of a semiconductor element of a motor control device while reducing processing load.　This compressor (1) comp...
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WO/2021/078876A1 |
In order to design the usual two alternating pump units (1) provided in an emptying device for a storage container (101) to be as economical as possible and to have a low wear level, both pump units (1) are equipped with a feed pump (1.1...
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WO/2021/079841A1 |
Provided is a method for continuing the operation of an electric compressor even if the magnitude of ripple voltage exceeds a predetermined threshold value. A control device of an electric compressor is provided with: a detection unit fo...
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WO/2021/079880A1 |
Provided is a method for detecting a ripple voltage. A control device is provided with: an acquiring unit which acquires the voltage value of an input voltage of a battery-driven electric compressor at irregular intervals; and a waveform...
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WO/2021/073531A1 |
A piston pump assembly for use in a braking system, and a control method therefor. The piston pump assembly comprises a piston (2), a pump body (1) having a working chamber, and a driving mechanism (3) used for driving the piston (2) to ...
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WO/2021/070037A1 |
Systems and methods are disclosed for reducing pulsations in peristaltic pumps. In some examples, a cassette comprises a cassette body and a flexible sheet joined to the cassette body, wherein a transition region of the flexible sheet co...
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WO/2021/063152A1 |
Disclosed is a control system of a horizontal-directional drilling machine. The control system comprises a controller, a pressure sensor, a position sensor, a handle, and a proportioning pump. The pressure sensor comprises a rotation pre...
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WO/2021/065266A1 |
This fluid machine device comprises a plurality of fluid machines that discharge a fluid, a wear state sensing unit that senses the wear state of the fluid machines, and a pressure sensing unit that senses pressure from the fluid machine...
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WO/2021/063471A1 |
A method for controlling the rotational speed (S) of an electric motor driven air compressor (2) that supplies compressed air to a pneumatically operated system (5) of a vehicle (1), characterized by the preliminary steps of: a) determin...
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WO/2021/059547A1 |
This air compressor comprises: a mechanical unit that performs compression and accumulation of air; an electromotive unit that feeds motive power to the mechanical unit; and a control device that controls electric power to be supplied to...
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WO/2021/059337A1 |
The present invention prevents the power consumption of a hydraulic pump from exceeding a predetermined value in a hydraulically driven device used in an electric hydraulic working machine that works by driving the hydraulic pump using a...
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WO/2021/052613A1 |
The invention relates to a hydraulic arrangement (HA) for an apparatus (AV) for blocking optical workpieces (L), such as eyeglass lenses, from associated block pieces (B), comprising a nozzle arrangement (DA) for delivery of high pressur...
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WO/2021/054828A1 |
There is provided a kitchen appliance apparatus for using air in the kitchen, comprising a housing, wherein in the housing a pump system is provided which pump system comprises, a primary port (106), a secondary port (107), a single dire...
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WO/2021/051157A1 |
A gas reinjection system has a gathering system water pipeline gas take-off inlet and a gathering system gas pipeline gas reinjection outlet. An electric motor drives a gas booster interfacing the inlet and the outlet to pressurise gas d...
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WO/2021/048895A1 |
A compressor drive device (1) is connected to a power source (3), and drives compressors (2a, 2b) provided with compressing mechanisms (21a, 21b) for compressing a refrigerant, and compressor motors (22a, 22b) for operating the compressi...
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