COMPRESSOR HOUSING FOR A TURBOCHARGER AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Apr 27, 2017
app pub date -
Sep 26, 2016
filing date -
Oct 27, 2015
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Abstract
A compressor housing for a turbocharger and a method for manufacturing the same. The method includes steps of preparing a scroll piece having an intake port forming portion forming an intake port, an intake-side wall surface of a scroll chamber, and a scroll outer peripheral portion covering an outer peripheral side of the scroll chamber; preparing a shroud piece having a cylindrical shroud press-fit portion to be press fitted into the intake port forming portion, an inner circumferential wall surface of the scroll chamber, and a recessed portion formed on a wall surface covering an outer peripheral side of an impeller; forming an abradable seal having a shroud surface by injection molding of resin into the recessed portion; and press fitting the shroud press-fit portion into the intake port forming portion.
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