Solenoid valve for a fuel system
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United States of America Patent
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Aug 25, 2020
Grant Date -
Dec 22, 2016
app pub date -
Jun 10, 2016
filing date -
Jun 17, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A solenoid valve for a fuel system has an electric coil and an armature disposed in a housing. A preassembled valve unit with valve seat, valve member, valve spring, and armature plate connected captively to each other is provided. In the valve unit, the valve seat is loosely secured between valve member and armature plate. The valve unit is inserted and secured in an open housing end and the valve spring contacts an inner shoulder of the housing. Armature plate and armature form a magnetic circuit. The valve member is supported on the armature plate and switched to open and close an outlet of the valve seat. By suppling current, a magnetic field is generated in the armature and attracts the armature plate into an operative valve position. The valve spring returns the armature plate into a rest position when the coil is currentless.
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