Valves and valve actuation – Electrically actuated valve – Balanced valve
Reexamination Certificate
2006-09-01
2009-10-06
Fristoe, Jr., John K (Department: 3753)
Valves and valve actuation
Electrically actuated valve
Balanced valve
C251S054000, C137S625330
Reexamination Certificate
active
07597305
ABSTRACT:
A poppet valve device includes a plurality of axial passages of substantially the same diameter and length communicating with a high-pressure room formed inside a valve seat member between a poppet valve body and the valve seat member. The passages are located adjacent to each other and an annular gap formed between the periphery of the poppet valve body and an inner perimeter of a projecting part on which a valve seat face of the valve seat member is formed, is narrow to restrict liquid flow through the annular gap. An electronic controlled fuel injection apparatus equipped with the poppet valve device is composed such that a lower end part of the poppet valve body and a bottom of a valve device accommodating part of the fuel injection apparatus are formed to restrict flow of fuel to prevent the occurrence of bouncing.
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English translation of the equivalent parts of the corresponding Japanese Office Action JP 2004-055202, issued on Jun. 1, 2007.
Kaneko Takashi
Ogawa Hisao
Fristoe, Jr. John K
Mitsubishi Heavy Industries Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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