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:
Automatic Transaxle Warning Light [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The automatic transaxle warning light illuminates when the transaxle has
malfunction.
Construction
The automatic transaxle warning light is built into the instrument cluster.
Operation
If the transmission has a malfunction, the TCM sends an ...
Seat Belt
Outline (Standard Deployment Control System)
Three-point front seat belts with the following functions for front seat
passengers adopted.
ELR (Emergency Locking Retractor: emergency locking mechanism)
Load limiter
Pre-tensioner seat belt.
T ...
Rear Crossmember Removal/Installation [2 Wd]
WARNING:
Verify that the rear crossmember is securely supported by a jack. If the
rear crossmember falls off, it can cause serious injury or death, and damage
to the vehicle.
CAUTION:
Performing the following procedures without first removing the rear ABS wheel-speed
s ...
