公开(公告)号：US20180274563A1

公开(公告)日：2018-09-27

申请号：US15466655

申请日：2017-03-22

申请人： Bell Helicopter Textron Inc.

发明人： Carl Theodore Elving ,  Robert Paul Reynolds ,  David Alan Hawthorne ,  Carlos Alexander Fenny

IPC分类号： F15B11/17 ,  F15B1/26 ,  B64D29/02 ,  B64C29/00 ,  B64C13/36

CPC分类号： F15B11/17 ,  B64C13/36 ,  B64C13/40 ,  B64C13/42 ,  B64C27/28 ,  B64C29/0033 ,  B64D29/02 ,  B64D41/00 ,  F15B1/26 ,  F15B18/00 ,  F15B2211/20507 ,  F15B2211/20523 ,  F15B2211/20576 ,  F15B2211/7142 ,  Y02T50/44

摘要： A hydraulic system for an aircraft having an engine and an auxiliary power unit includes a first hydraulic subsystem including a first hydraulic pump and a first set of hydraulic-powered components in fluid communication with the first hydraulic pump. The first hydraulic pump is powered by the engine to pump shared hydraulic fluid to the first set of hydraulic-powered components. The hydraulic system includes a second hydraulic subsystem including a second hydraulic pump and a second set of hydraulic-powered components in fluid communication with the second hydraulic pump. The second hydraulic pump is powered by the auxiliary power unit to pump the shared hydraulic fluid to the second set of hydraulic-powered components. A shared return line subsystem and reservoir is in fluid communication with the first and second hydraulic subsystems to return the shared hydraulic fluid to the first and second hydraulic pumps.