Invention Grant
US08770313B2 Impulse generator, hydraulic impulse tool and method for producing impulses
有权
脉冲发生器，液压冲击工具及产生脉冲的方法
- Patent Title: Impulse generator, hydraulic impulse tool and method for producing impulses
- Patent Title (中): 脉冲发生器，液压冲击工具及产生脉冲的方法
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Application No.: US11918704Application Date: 2006-03-20
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Publication No.: US08770313B2Publication Date: 2014-07-08
- Inventor: Kenneth Weddfelt , Göran Tuomas , Risto Wisakanto
- Applicant: Kenneth Weddfelt , Göran Tuomas , Risto Wisakanto
- Applicant Address: SE Orebro
- Assignee: Atlas Copco Rock Drills AB
- Current Assignee: Atlas Copco Rock Drills AB
- Current Assignee Address: SE Orebro
- Agent Mark P. Stone
- Priority: SE0501151 20050523
- International Application: PCT/SE2006/000348 WO 20060320
- International Announcement: WO2006/126928 WO 20061130
- Main IPC: B25D17/02
- IPC: B25D17/02 ; E21B28/00 ; B25D9/12
Abstract:
An impulse generator (1) for a percussive tool includes a chamber (3) for receiving a liquid volume and an impulse piston (4) which is arranged for transferring pressure pulses in the liquid volume into stress wave pulses in the tool. The chamber (3) is adapted with respect to its shape such that it forms a resonance chamber for liquid in the liquid volume for forming at least one pressure antinode (11,15,17) inside the chamber. The invention also concerns a method and a hydraulic impulse tool.
Public/Granted literature
- US20090038817A1 Impulse generator, hydraulic impulse tool and method for producing impulses Public/Granted day:2009-02-12
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