GENERAL INFORMATION
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Engine - the "RENESIS" - a new-generation rotary engine
• Engine
— 13B-multi side port (MSP) (High power and Standard power), new-generation rotary engine has been
adopted.
— Side exhaust system has been adopted by transferring the exhaust ports from the rotor housing to the side
housing.
— The intake port area has been in increased by 30% over previous rotary engines. This results in reduced
intake resistance and increased air flow which makes more power.
— Cut-off seals have been provided between the oil seals and the side seals of the rotors, preventing
combustion gas from flowing into the intake air process.
— Keystone-shaped (wedge-shaped) side seals have been adopted for increased sealing performance.
— Ribs in the side housing and rotors have been decreased in thickness and weight while maintaining high
rigidity.
— Spark plugs with iridium tips have been adopted for improved heat resistance and durability.
— Flank cuts on the corners of the rotors provide improved exhaust efficiency by delaying the exhaust-port
closing timing.
• Intake and control
— Sequential dynamic air intake system (S-DAIS) has been adopted, realizing powerful output at high engine
speed provides a wide-range of torque in the low and medium-speed ranges through full use of air intake
pulsating unique to the rotary engine.
— Large, low-resistance air cleaner and variable fresh air duct (VFAD) (High power only) have been adopted.
EXHAUST PORT
EXHAUST PORT
AUXILIARY PORT
(HIGH POWER ONLY)
INTAKE PORT
SIDE EXHAUST
(RX-8)
PERIPHERAL EXHAUST
(RX-7)
EXHAUST PORT
CHU0000S020
HIGH POWER
VARIABLE DYNAMIC EFFECT
INTAKE VALVE
THROTTLE VALVE
AUXILIARY PORT VALVE
VARIABLE FRESH AIR DUCT
AIR CLEANER
FRESH AIR DUCT
SECONDARY SHUTTER VALVE
INTAKE MANIFOLD
CHU0000S013
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