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:
Bsm Indicator Light Flashes While Not Under Bsm Indicator Light Flashing Conditions
(No Combination Switch Operation (Turn Signal Switch)) [Blind Spot Monitoring (Bsm)]
Description
BSM indicator light flashes while not under BSM indicator light-flashing
conditions (no combination switch operation (turn signal switch)
The BSM indicator light flashes despite not satisfying the BSM indicator
light flashing ...
Passenger Compartment Temperature Sensor Inspection [Full Auto Air Conditioner]
1. Measure the temperature around the passenger compartment temperature sensor
and measure the resistance between passenger compartment temperature sensor terminals
A and B.
If the characteristics of the passenger compartment temperature sensor are
not as shown in the graph, replace t ...
Electric Variable Valve Timing Actuator, Hydraulic Variable Valve Timing Actuator
Removal/Installation
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
Do not disassemble the electric variable valve timing actuator and hydraulic
variable valve timing actuator because they are precision units.
If ...
