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    • 190. 发明专利
    • DUAL -CAVITY PUMP
    • CA2845880A1
    • 2013-03-28
    • CA2845880
    • 2012-08-22
    • KCI LICENSING INC
    • LOCKE CHRISTOPHER BRIANTOUT AIDAN MARCUS
    • F04B43/04
    • A dual-cavity pump having a pump body with a substantially elliptical shape including a cylindrical wall (11) closed at each end by end plates (12,13) is disclosed. The pump (10) further comprises a pair of disc-shaped interior plates (14,15) supported within the pump by a ring-shaped isolator (30) affixed to the cylindrical wall of the pump body. The internal surfaces of the cylindrical wall (11), the end plate (12), the interior plate (14), and the ring-shaped isolator (30) form a first cavity (16) within the pump. The internal surfaces of the cylindrical wall (11), the end plate (13), the interior plate (15), and the ring-shaped isolator (30) form a second cavity (17) within the pump. The internal surfaces of the first cavity (16) comprise a side wall (18) which is a first portion of the inside surface of the cylindrical wall (11) that is closed at both ends by end walls (20,22) wherein the end wall (20) is the internal surface of the end plate (12) and the end wall (22) comprises the internal surface of the interior plate 14 and a first side of the isolator (30):. The interior plates (14,15) together form an actuator (40) that is operatively associated with the central portion of the end walls (22,23) via the interior plates (22,23). The illustrative embodiments of the dual-cavity pump have three valves including one located within a common end wall between the cavities of the pump.