Testing device for fuel injectors
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United States of America Patent
Stats
-
Dec 24, 1985
Grant Date -
N/A
app pub date -
Feb 6, 1984
filing date -
Feb 8, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A known type of fuel injector has a discharge passage which can be closed off by a tip sealing valve and provision for circulating fuel in the vicinity of the discharge passage. In order to test that the passage is completely closed by the tip sealing valve, the passage is closed, and the injector is blocked off from the supply and return lines while remaining full of fuel. An attempt is made to introduce more fuel into the injector and, if a significant amount can be introduced, it means that there is leakage from the injector, presumably through the discharge passage.
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