Mazda CX-5 Service & Repair Manual: Miller Cycle Engine
Outline
-
The Miller cycle engine is a high-efficiency engine which achieves high fuel economy performance by obtaining a high-expansion ratio.
-
The Miller cycle engine achieves a high-expansion ratio without increasing its effective compression ratio by retarding the intake air valve close timing.
Operation
1. Intake air is introduced into the cylinder.
2. The intake valve is kept open after the intake stroke is finished to force the air in the cylinder to flow back to the intake pipe.
3. The compression stroke starts from the position in which the intake valve is closed (small compression).
4. The air-fuel mixture is combusted and the piston is pushed down to BDC (large expansion).
Mechanical
Outline
The sliding resistance*1 has been reduced by:
the adoption of a rocker arm (built into needle roller bearing)
reducing load on the valve spring
narrow ...
Non Return Valve Inspection
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or death and facility breakage. Fuel
can also irritate skin ...
Other materials:
Air Bag System [Two Step Deployment Control System]
Outline
The air bag system is a device that supplements the passenger restraint function
of the seat belts. The air bag system will not have the designed effect if the
seat belts are not worn properly.
The air bag system is composed of the following parts:
...
Front Frame (Rear) Removal [Panel Replacement]
Symbol Mark
Removal Procedure
1. Drill the 33 locations shown in the figure.
NOTE:
When drilling, do not drill a hole all the way through or there could be
a problem when installing the new part.
2. Remove the front frame (rear). ...
A Pillar Trim Removal/Installation
1. Partially peel back the seaming welt.
2. Take the shaded area shown in the figure, and pull the A-pillar trim in the
direction of the arrow (1) while detaching clip A, clips B.
3. Cut the lead wire connecting clips B and grommet using a nipper.
4. Pull the A-pillar trim in the dir ...
