Impulse generator, hydraulic impulse tool and method for producing impulses
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United States of America Patent
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Jul 8, 2014
Grant Date -
Feb 12, 2009
app pub date -
Mar 20, 2006
filing date -
May 23, 2005
priority date (Note) -
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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.
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