Mitsubishi Electric Eclipse Informacje Techniczne Pobierz pdf (Strona 78)

ENGINE <NON-TURBO>

Emission Control System

I-57

EMISSION CONTROL SYSTEM

GENERAL INFORMATION

There are three sources of vehicle exhaust emis-

sions generated: the exhaust gases resulting from

combustion, the blow-by gases generated within

the crankcase, and the evaporative emissions gen-

erated from the fuel tank and other components

of the fuel line.

The emissions-control system, which is designed

to control the discharge of these exhaust gases

into the atmosphere, is composed of the following

system components.

(1) Exhaust emission control system

(2) Crankcase emission control system

(3)

Evaporative emission control system

Canister

Evaporative emission

purge solenoid

From fuel

pump

Positive

crankcase

ventilation

valve

N71APOOAA

The exhaust emissions-control system reduces the

amount of carbon monoxide, hydro carbon and ox-

ides of nitrogen in the exhaust gases by adding

the exhaust gas recirculation device and the catalytic

converter to fundamental improvements such as

an improvement of the combustion chamber and

the camshaft, as well as other improvements to

the engine such as feedback control of the air/fuel

ratio by the electronically controlled fuel injection

system.

The crankcase emissions-control system is a closed

type so that blow-by gases are not discharged out

to the atmosphere. The evaporative emissions-con-

trol system is the canister type; vapors that are

generated within the fuel tank are introduced into

the intake manifold and are cornbusted so that they

are not emitted out to the atmosphere.

Electric EGR

‘3

transducer

solenoid1

MIT

only

----

Pulskd

secondary

air injection valve

Heated oxygen

sensor

(rear)

A F U 0 0 6 3

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 380 381

Komentarze do niniejszej Instrukcji

Brak uwag

Mitsubishi Electric Eclipse Informacje Techniczne Strona 78

Komentarze do niniejszej Instrukcji