METHOD AND APPARATUS FOR PREPARATION OF CYLINDER BORE SURFACES WITH A PULSED WATERJET
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Aug 18, 2010
filing date -
Oct 6, 2009
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Abstract
An apparatus for and a method of prepping a surface of a cylinder bore using a pulsed waterjet entails generating a signal having a frequency f using a signal generator, applying the signal to generate a pulsed waterjet through an exit orifice of a nozzle having an exit orifice diameter d and a length L. The pulsed waterjet prepares the surface to within a predetermined range of surface roughness. The surface roughness is determined by selecting operating parameters comprising a standoff distance (SD), a traverse velocity VTR of the nozzle, a water pressure P, a water flow rate Q, a length-to-diameter (L/d) ratio, the frequency f, and an amplitude A of the signal.
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