Fuel supply pump and tappet structure body
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United States of America Patent
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Apr 7, 2009
Grant Date -
May 19, 2005
app pub date -
Dec 21, 2004
filing date -
Oct 29, 2002
priority date (Note) -
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Abstract
A fuel supply pump with a large fuel discharge amount and a tappet structure body, which are suitably used for an accumulated pressure-type fuel injection device that mechanically amplifies pressure, is provided. A fuel supply pump has a tappet structural body and a spring sheet, wherein a penetration portion for allowing passage of a lubricant or a fuel for lubrication therethrough by coordinating the tappet structure and the spring sheet is provided between a spring-holding chamber for holding a spring to be used for pulling up a plunger and a cam chamber for housing a cam to be used for moving the plunger up and down.
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