公开(公告)号：US20170328323A1

公开(公告)日：2017-11-16

申请号：US15468526

申请日：2017-03-24

Applicant: ROLLS-ROYCE plc

Inventor： Luke ASHTON ,  Martin YATES ,  David BROOKES

IPC: F02M59/10 ,  F04B53/16 ,  F04B1/20 ,  F02C7/22 ,  F04B17/03 ,  F04B15/00 ,  F04B53/08 ,  F04B53/14

Abstract: An axial piston pump has a fluid inlet, a fluid outlet, and a rotatable, one-piece piston housing carrying one or more pistons movable within one or more respective sleeves formed by the housing. A circumferential row of fixed field members is mounted to the housing at a mounting location formed by the housing, the mounting location being radially outward of the sleeve(s). The pump further has a stator surrounding the piston housing and including a circumferential row of armature windings such that the piston housing and the stator form an electro-magnetic motor operable to rotate the piston housing, and a swashplate engaged with the piston(s) such that rotation of the piston housing relative to the swashplate around an axis of rotation produces reciprocating movement of the piston(s) for the pressurisation of fluid received into the sleeve(s) from the fluid inlet and then discharged from the sleeve(s) to the fluid outlet.