公开(公告)号：US20150351580A1

公开(公告)日：2015-12-10

申请号：US14758576

申请日：2014-01-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： ANDREA FERRARO ,  ANDREA FAVERO ,  ANDREA CASTELLANI ,  BIOVANNI BERTO

IPC: A47J31/36 ,  A47J31/46 ,  A23F5/26

Abstract: The infusion unit comprises a receptacle (25, 27) for receiving at least one ingredient in bulk form for the preparation of a beverage, as well as a brewing piston (33) arranged for insertion in the receptacle and forming a brewing chamber therewith. The brewing piston (33) is provided with a sealing arrangement (35) for sliding and sealing engagement with an inner wall of the receptacle when the brewing piston is in the receptacle. A hydraulic actuator (51) controls the movement of the brewing piston (33) so as to adjust the volume of the brewing chamber by moving the brewing piston in a brewing position inside the receptacle. A hot water delivery circuit (39) is further provided, for delivering hot water in the interior of the brewing chamber and performing a brewing cycle.

Abstract translation: 输液单元包括用于容纳至少一种散装形式的成分以用于制备饮料的容器（25,27），以及布置成插入容器中并与其形成冲泡室的冲泡活塞（33）。 冲泡活塞（33）设置有密封装置（35），用于当冲泡活塞在容器中时与容器的内壁滑动和密封接合。 液压致动器（51）控制冲泡活塞（33）的运动，以便通过将冲泡活塞移动到容器内部的冲泡位置来调节冲泡室的体积。 还提供了一个热水输送回路（39），用于在酿造室的内部输送热水并进行酿造循环。