A Powered Rotary Chisel
1980
ABSTRACT A powered rotary chisel was designed and then tested in laboratory soil bins. The forward-rotating powered chisel provided its own thrust through the soil and returned a portion of its power to the system as a negative draft force. The powered chisel disturbed a larger volume of soil and broke the soil more finely than did a rigid chisel. Based on the experimental results and assumed power transmission efficiency, it is projected that the powered rotary chisel is more energy efficient than a rigid chisel.
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