Invention Grant
- Patent Title: Pilot control mechanism for boom bounce reduction
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Application No.: US15036756Application Date: 2014-11-07
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Publication No.: US10344783B2Publication Date: 2019-07-09
- Inventor: Meng (Rachel) Wang , Michael Berne Rannow
- Applicant: Eaton Intelligent Power Limited
- Applicant Address: IE Dublin
- Assignee: Eaton Intelligent Power Limited
- Current Assignee: Eaton Intelligent Power Limited
- Current Assignee Address: IE Dublin
- Agency: Merchant & Gould P.C.
- International Application: PCT/US2014/064646 WO 20141107
- International Announcement: WO2015/073329 WO 20150521
- Main IPC: F15B11/00
- IPC: F15B11/00 ; F15B11/044 ; F15B21/00 ; B66C13/06 ; E02F9/22 ; E04G21/04 ; F16F15/023 ; F16F15/027

Abstract:
A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and first and second blocking valves (350, 450). A net load (90) is supported by a first chamber (116, 118) of the hydraulic actuator, and a second chamber (118, 116) of the hydraulic actuator may receive fluctuating hydraulic fluid flow from the second control valve to produce a vibratory response (950) that counters environmental vibrations (960) on the boom. The first blocking valve prevents the fluctuating hydraulic fluid flow from opening the first counter-balance valve. The first blocking valve may drain leakage from the first counter-balance valve.
Public/Granted literature
- US20160298660A1 PILOT CONTROL MECHANISM FOR BOOM BOUNCE REDUCTION Public/Granted day:2016-10-13
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