公开(公告)号：US20230151812A1

公开(公告)日：2023-05-18

申请号：US17982223

申请日：2022-11-07

申请人： THALES ,  CETIM ,  SERV

发明人： Gaëtan FAGOT ,  Benoît MARY ,  Laurent JEANNEROD ,  Marco GONZALEZ ,  Fabien LIGERET

IPC分类号： F04C11/00

CPC分类号： F04C11/005

摘要： A hydraulic pump includes a casing, an impellor pump comprising a rotor that is rotationally mobile with respect to the casing about a first axis, the rotor comprising several blades in helix form, a transition zone belonging to the casing and having, on the side of the impellor pump, a ramp in helix form developing in the same direction as the helix form of the blades, a trochoid pump comprising a rotor with outer toothing secured to the rotor of the impellor pump, and a rotor with internal toothing that is rotationally mobile with respect to the casing about a second axis parallel to and offset from the first axis, the trochoid pump being fed by the impellor pump through the transition zone running along the ramp.