Kohler KDI Series

_07
15
196
ED0053029590
GLOSSARY
A Air gap:
Distance to respect between a xed component and one in
movement.
Alternator:
A component that transforms mechanical energy into AC
electrical energy.
Authorised service station: KOHLER authorised workshop.
Authorised workshop: Kohler authorised service centre.
B Balancer device:
A device that reduces vibrations caused by movement of the
alternating weights (Crankshaft - Connecting rods - Pistons).
Base conguration: Engine having components represented in Par. 1.4 - 1.5.
BDC:
Bottom Dead Centre; a moment in which the piston is at the
start of its stroke.
Bore: Internal diameter of the cylinder in combustion engines.
C Catalyst: A device in charge of ltering exhausted gas.
Combustion:
Chemical reaction of a mixture composed of fuel and fuel (air)
inside a combustion chamber.
Common Rail:
A high-pressure "Common Duct" that produces a constant
supply of fuel directly to the injectors.
Crankshaft:
A component that transforms straight operation into rotary
operation, and vice-versa.
E EC: European Community.
ECS: Emission Control System
ECU:
Electronic Control Unit; an electronic device in charge of
electronically detecting and controlling other electronic control
devices.
EGR Cooler:
Recirculated exhaust gas cooling; a system that is able to
cool recirculated gas (EGR) from the exhaust. This enables
the temperature to remain constant inside the intake manifold,
thus improving combustion inside the cylinders and breaking
down pollutants further.
EGR valve:
Electronically-controlled device that adjusts the entrance of
exhaust gas recirculated inside the intake manifold.
EGR:
Exhaust Gas Recirculation, in internal combustion engines; a
system that enables recirculation of combusted gas by means
of taking it in once again, which enables it to break down a
part of the pollutants present in the exhaust gas.
Electronic injector:
An electronically activated component able to inject jets of
atomised fuel inside the cylinders.
EPA:
Environmental Protection Agency. The United States' authority
that safeguards the environment; its duty is to govern and
control polluting emissions.
F Fig.: Figure.
Functional units:
Component, or group of main components, able to carry out
specic functions on the engine.
G Galvanised: Material that has undergone surface protection treatment.
Grinding (valves and seats):
Cleaning operation of the valves and seats carried out with
an abrasive paste (refer to an authorised service station for
this type of operation).
H Heater:
A device that heats the intake air by means of an electrical
resistor.
Heavy conditions:
Type of extreme condition referred to the work environment
in which the engine is used (very dusty - dirty area, or in a
contaminated environment due to various types of gas).
I Idle speed operation:
Operation of a running engine with the vehicle stopped and
on idle speed.
Intercooler:
Air-cooling element under pressure from the turbo situated
between the turbine and intake manifold.
K KDI: Kohler Direct Injection