High-pressure fuel pump for a fuel system for an internal combustion engine
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United States of America Patent
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Aug 27, 2019
Grant Date -
Nov 9, 2017
app pub date -
Sep 10, 2015
filing date -
Nov 10, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A high-pressure fuel pump for a fuel delivery system of an internal combustion engine includes a pressure limiting valve positioned between an outlet and an inlet of the pump. The valve includes a spring-loaded closing element and a closing body that radially holds the closing element in place, and that has a concave receiving portion configured to at least partially receive the closing element. The receiving portion has a radially outer first area with a first opening angle, and a radially inner second area with a second opening angle larger than the first opening angle. The first area and the second area are located outside of a contact region between the closing element and the closing body.
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