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公开(公告)号：US20200170443A1
公开(公告)日：2020-06-04
申请号：US16615454
申请日：2018-05-18
摘要： The present invention relates to a beverage preparation system (10) for controlling a beverage preparation process by injection of liquid into a cartridge (20), the system comprising—a pressure adjustable pump (2) for delivering different pressures upon varying at least one of its drive characteristics such as the speed of the pump, —a sensor (3) for measuring an operating parameter of the pump (2) such as a current absorbed by the pump, —a flow sensor (1) for measuring a liquid flow parameter of liquid injected into the cartridge (20), —a control unit (6) designed to control an extraction pressure of the cartridge (20) by adjusting the drive characteristics of the pump (2) based on pre-established pressure interpolation data (12) depending on the measured liquid flow parameter and the measured operating parameter of the pump.
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公开(公告)号：US20240341522A1
公开(公告)日：2024-10-17
申请号：US18648962
申请日：2024-04-29
CPC分类号： A47J31/5251 , A47J31/3676 , A47J31/4492 , A47J31/468 , A47J31/5255
摘要： A beverage preparation system controls a beverage preparation process by injection of liquid into a cartridge. The system includes a pressure adjustable pump for delivering different pressures upon varying at least one of its drive characteristics such as the speed of the pump, a sensor for measuring an operating parameter of the pump such as a current absorbed by the pump, a now sensor for measuring a liquid flow parameter of liquid injected into the cartridge, and a control unit designed to control an extraction pressure of the cartridge by adjusting the drive characteristics of the pump based on pre-established pressure interpolation data depending on the measured liquid now parameter and the measured operating parameter of the pump.
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公开(公告)号：US12070154B2
公开(公告)日：2024-08-27
申请号：US16615454
申请日：2018-05-18
CPC分类号： A47J31/5251 , A47J31/3676 , A47J31/4492 , A47J31/468 , A47J31/5255
摘要： The present invention relates to a beverage preparation system (10) for controlling a beverage preparation process by injection of liquid into a cartridge (20), the system comprising—a pressure adjustable pump (2) for delivering different pressures upon varying at least one of its drive characteristics such as the speed of the pump, —a sensor (3) for measuring an operating parameter of the pump (2) such as a current absorbed by the pump, —a flow sensor (1) for measuring a liquid flow parameter of liquid injected into the cartridge (20), —a control unit (6) designed to control an extraction pressure of the cartridge (20) by adjusting the drive characteristics of the pump (2) based on pre-established pressure interpolation data (12) depending on the measured liquid flow parameter and the measured operating parameter of the pump.
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