57640
206
Zoom out
Zoom in
Previous page
1/215
Next page
17. Emission Control System
17-1
Names of Mechanisms in the Emission
Control System···································· 17-1
Function of Mechanisms in the Emission
Control System···································· 17-1
Fuel Evaporative Emission Control System
(E.E.C.) ················································· 17-2
Evaporative Emission Control System
(EEC) ···················································· 17-3
Catalytic Converting System (CATA) · 17-4
Positive Crankcase Ventilation System
(P.C.V.)·················································· 17-5
Inspection Items··································· 17-6
Countermeasure for Emission Pollutants
Not Within Standard as In Idle Speed
(4-Stroke Engine) ································· 17-7
Names of Mechanisms in the Emission Control System
Four-Stroke Engine Model
1. Catalyst converter (CATA)
2. Evaporative Emission Control System (EEC)
3. Positive Crankcase Ventilation System (PCV)
Function of Mechanisms in the Emission Control System
General
The emission control strategy of this model was formulated basing on a four-stroke SOHC carburetor
single cylinder engine. It adopts secondary air introducing device to purify the exhaust, in addition, it also
adopts a charcoal canister to absorb the fuel vapor generated through evaporation in the fuel system.
Engine refinements
Four Valves designed combustion chamber, together with optimum compression ratio, ignition timing,
intake and exhaust timing, have all contributed to maximize the intake/exhaust efficiency and
combustion efficiency.
Secondary air introducing system
It is used to introduce secondary air into exhaust manifold so that incomplete burned exhausts, CO &
HC, may be burned again and to be harmless gases.
System Device Components Purpose & function
Combustion
chamber
Combustion
chamber
4-valve combustion
chamber
The semi-circular combustion chamber is
designed to balancing the air stream to achieve
the combustion stability.
Exhaust
system
Post-treatment
device
Catalytic converter
Installed a three-way catalytic converter in the
middle of exhaust pipe to oxidize the CO, HC in
the exhaust gas.
EEC system
Evaporative
emission control
system
Charcoal canister
Purge control valve
A
canister is used to absorb vapor from fuel tank
and to introduce it into carburetor at an
opportune timing.
PCV system
Crankcase blow-by
introducing device
Vapor separator
To introduce blow-by into combustion chamber
via a vapor separator for burning then
discharging.
17
Home page
Contents
206


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Sym Mio 50 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Sym Mio 50 in the language / languages: English as an attachment in your email.

The manual is 7,16 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Sym Mio 50

Sym Mio 50 User Manual - Dutch - 22 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info