Mazda CX-5 Service & Repair Manual: Miller Cycle Engine
Outline
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The Miller cycle engine is a high-efficiency engine which achieves high fuel economy performance by obtaining a high-expansion ratio.
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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:
Control Valve Body Removal/Installation [Fw6 A EL, Fw6 Ax EL]
On-Vehicle Removal
WARNING:
A hot transaxle and ATF can cause severe burns. Turn off the engine and wait
until they are cool.
Using compressed air can cause dirt and other particles to fly out, causing
injury to the eyes. Wear protective eyeglasses whenever using compressed ai ...
Front Seat Side Cover Removal/Installation
WARNING:
Handling a side air bag improperly can accidentally operate (deploy) the
air bag, which may seriously injure you. Read the service warnings in the Workshop
Manual before handling the front seat (side air bag integrated)..
If the sliding mechanisms on both sides are ...
Supplier Identification Procedure [Audio]
NOTE:
The unit supplier can vary. When asking the supplier (service center) for
repair or replacement, identify the supplier and fill in the Audio Repair Order
Form using the following procedures.
Verification procedure using label or inscribed lettering
1. Disconnect the negati ...
