Inner cam system distributor type fuel injector
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United States of America Patent
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-
Jan 12, 1999
Grant Date -
N/A
app pub date -
Aug 28, 1997
filing date -
Aug 29, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotor that rotates in synchronization with an engine is provided inside a housing and a cam ring is provided outside and around the rotor so that plungers are caused to move reciprocally in the direction of the radius by the cam ring as the rotor rotates. At both sides of the cam ring, support members (barrel 8, bearing support member 6) constituted of the same material as that of the cam ring are secured to the housing and to both sides of the cam ring, and these support members alone hold the cam ring from both sides rotatably. A connecting rod connecting the cam ring and the timer mechanism is formed as an integrated part of the cam ring. The clearance between the cam ring and the members holding it can be set small so that the vibration of the cam ring is reduced to minimize the impact noise made by the cam ring and wear of the cam ring. In addition, the connection strength between the cam ring and timer mechanism is increased.
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