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BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI
Publicat de
Universitatea Tehnică „Gheorghe Asachi“ din Iaşi,
Tomul LVIII (LXII), Fasc. 4, 2012
Secţia
CONSTRUCŢII DE MAŞINI
INTRODUCTION TO COMMON RAIL INJECTION SYSTEM
BY
VASILE GABRIEL NENERICA *1 , VASILE HUIAN 2 and DORU CĂLĂRAŞU 1
Received: 17 March 2012
Accepted for publication: 28 March 2012
“Gheorghe Asachi” Technical University of Iaşi,
1 Department of Hydraulic,
2 Department of Mechanical Engineering
Abstract. The Diesel engine is known to generate great impellent/
propulsion and is becoming increasingly sought at the moment. The emergence
of injection systems of gasoline engines and the requirements of emissions'
reduction conducted to new solutions development so the Diesel engine can be
used for trucks and cars, alike. These facts seem to have solved the exigencies in
the development of so called Common Rail injection system. The present
scientific approach is focused on Common Rail injection systems, in general and
on mainly solenoid injectors, in relation with certain functional problems and
correction factors
Key words: Diesel engine, common rail, injector, cavitations.
1. Introduction
Injection equipment is designed to feed the engine combustion chamber
with fuel, so that burning meets at any time the engine operating regime,
determined to turn its external load. Diesel engine operation is based on selfignition
of fuel injected and sprayed into the engine cylinders when the intake
air above reaches, by compressing the piston cylinder, a temperature sufficient
to produce self -ignition. For proper and economic operation engine at the same
time, injection equipment must meet several requirements, among which the
most important are:
* Corresponding author: e-mail: nnrcvasile@yahoo.com