Invention Grant
US08967524B2 Hydraulic control valve, a device for adjusting blade pitch, and an aircraft provided with such a hydraulic control valve
有权
液压控制阀，用于调节叶片间距的装置以及设置有这种液压控制阀的飞行器
- Patent Title: Hydraulic control valve, a device for adjusting blade pitch, and an aircraft provided with such a hydraulic control valve
- Patent Title (中): 液压控制阀，用于调节叶片间距的装置以及设置有这种液压控制阀的飞行器
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Application No.: US13911436Application Date: 2013-06-06
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Publication No.: US08967524B2Publication Date: 2015-03-03
- Inventor: Maxime Leclercq , Bernard Gemmati , Philippe Veron , Francois Malburet
- Applicant: Airbus Helicopters
- Applicant Address: FR Marignane Cedex
- Assignee: Airbus Helicopters
- Current Assignee: Airbus Helicopters
- Current Assignee Address: FR Marignane Cedex
- Agency: Brooks Kushman P.C.
- Priority: FR1201829 20120628
- Main IPC: B64C27/22
- IPC: B64C27/22 ; B64C3/40 ; F15B9/10 ; B64C11/38 ; B64C27/26
Abstract:
A hydraulic control valve (10) provided with at least one body (11) having a jacket (12) with a feed orifice (13). The hydraulic control valve (10) has a transfer rod (15) provided with at least one fluid transfer duct (16), at least one orifice (17) present inside the jacket (12), and a second orifice (18) arranged outside the jacket (12). The jacket (12) has a feed chamber (25) connected to said feed orifice (13) and a main fluid-return chamber (30) connected to discharge means (50) for discharging the fluid, control means (20) being secured to the jacket (12) in order to move the jacket (12) in translation relative to said transfer rod (15) so as to control the flow of fluid within said transfer rod (15).
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