Invention Grant
US09222418B2 Fuel feed circuit with hydraulic actuator and fuel metering unit for an aeroengine
有权
具有用于航空发动机的液压致动器和燃料计量单元的燃料供给回路
- Patent Title: Fuel feed circuit with hydraulic actuator and fuel metering unit for an aeroengine
- Patent Title (中): 具有用于航空发动机的液压致动器和燃料计量单元的燃料供给回路
-
Application No.: US13500756Application Date: 2010-09-30
-
Publication No.: US09222418B2Publication Date: 2015-12-29
- Inventor: Nicolas Alain Bader , Frederic Brettes , Bastien Dore , Laurent Gilbert Yves Hodinot
- Applicant: Nicolas Alain Bader , Frederic Brettes , Bastien Dore , Laurent Gilbert Yves Hodinot
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0956952 20091006
- International Application: PCT/FR2010/052064 WO 20100930
- International Announcement: WO2011/042642 WO 20110414
- Main IPC: F02C9/48
- IPC: F02C9/48 ; F02C7/236 ; F02C9/26 ; F02K1/17

Abstract:
A fuel feed circuit for an aeroengine, the circuit including a high-pressure pumping system including first and second positive displacement pumps, a hydraulic actuator, and a fuel metering unit. As a function of a position of a slide of the actuator, a feed orifice of the actuator may be connected to a high-pressure delivery orifice connected to an outlet of the second pump, or to a low-pressure delivery orifice connected to a low-pressure feed line. The fuel metering unit includes through sections, one of these through sections being connected to an outlet of the high-pressure pumping system and the other through section being connected to an outlet of the high-pressure pumping system and leading to a high-pressure pilot chamber of the hydraulic actuator.
Public/Granted literature
- US20120266600A1 FUEL FEED CIRCUIT FOR AN AEROENGINE Public/Granted day:2012-10-25
Information query
IPC分类: