Volkswagen 1.9 tdi, Руководство пользователя, Страница: 5 / 67

Introduction
1
1.9-Liter TDI Engine with
Pump Injection System
The demands on the modern diesel engine
for increased performance and fuel
economy, and reduced exhaust emissions
and noise levels are growing constantly.
Good fuel and air mixture preparation is a
key factor in meeting these requirements.
This calls for efficient injection systems that
produce high injection pressures to ensure
that the fuel is well atomized. It is also
necessary to precisely control the start of
fuel injection and the injection quantity.
The pump injection system meets
these requirements.
In 1905, Rudolf Diesel came up with the
idea of a pump/injector, combining the
injection pump and injector in one unit
in order to dispense with high-pressure
lines and achieve high injection pressures.
At the time, however, he did not have
the technical means to put his idea
into practice.
Diesel engines with mechanically controlled
pump injection systems have been in use
in ships and trucks since the 1950s.
In association with Bosch, Volkswagen has
succeeded in developing a diesel engine
with a solenoid valve controlled pump
injection system suitable for use in
passenger cars.
The 1.9-liter TDI engine with the new pump
injection system meets the stringent
demands for improved performance and
cleaner emissions.
With continuing advances like this one,
Rudolf Diesel’s vision of “smoke- and
odor-free exhaust gases” may one day
become a reality.
SSP304/032
SSP209/027