stroke oI
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:8.7 Before commencement of the effective stroke, fuel in the pump barrel of
a diesel fuel injection system is 6 cc. The diameter and the length of
the fuel line from pump to injector is 2.5 mm and 600 mm respectively.
The fuel in the injection valve is 2 cc.
(i) To deliver 0.10 cc of fuel at a pressure of 150 bar, how much dis-
placement the plunger undergoes. Assume a
pump inlet pressure of 1 bar.
(ii) What is the effective stroke of the plunger if its diameter is 7 mm.
Assume coefficient of compressibility of oil as 75 x 10-6 per bar at at-
mospheric pressure.
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