Method to measure injector opening and closing lag times
Publication date: 2011-02-01
Combustion Engines 2011,144(1)
KEYWORDS
ABSTRACT
The paper describes a method to measure injector opening and closing lag times based on measuring the vibration in
the axis of movement of a valve. There are also some results of the studies on a plate injector. Analysing the measurements
obtained, it is demonstrated that opening and closing lag times can be determined much more precisely by measuring
vibration than by the method based on analysing gas pressure directly behind an injector. The authors have noted the
greater repeatability of standard deviation expressed as the smaller standard deviation of the lag times specified and
the easy application of this method for stand testing. Consequently, this method can determine these times in a simple
and precise way.
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