Fuel injection pump having a separable plunger
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United States of America Patent
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Jul 7, 2015
Grant Date -
Mar 28, 2013
app pub date -
Oct 27, 2010
filing date -
Jun 9, 2010
priority date (Note) -
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Abstract
A fuel injection pump having a separable plunger includes a separable plunger of which outer circumference is slide coupled to an inside of the a such that a lower portion thereof is supported by an upper portion of a main plunger to enable upward and downward slide movement in association with the main plunger, wherein an injection timing control spiral step of which upper surface is formed in a spiral shape, is protrudingly formed on the outer circumference thereof and a fuel passage is formed on one side of the outer circumference thereof including the injection timing control spiral step and an elastic member having a lower portion elastically supported by the separable plunger and an upper portion inserted within the barrel to be supported by an upper surface of the barrel.
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