Quote:
Originally Posted by steveX
THIS IS NOT TRUE..MUST BE PROOFED. the rotor, rotate around the crankshaft. The rotor is the controlling power/movement so the crankshaft can not exceed the rotor speed. The reason a rx7 is able to REV to 9,000-12,000 rpm so quick, is because three power stroke is happening in one revolution. this is also why the car makes more noise than piston engine.
|
Since HowStuffWorks is popular right now I will quote directly from them "
The heart of a rotary engine is the rotor. This is roughly the equivalent of the pistons in a piston engine. The rotor is mounted on a large circular lobe on the output shaft. This lobe is offset from the centerline of the shaft and acts like the crank handle on a winch, giving the rotor the leverage it needs to turn the output shaft.
As the rotor orbits inside the housing, it pushes the lobe around in tight circles, turning three times for every one revolution of the rotor. "
If you want further proof, you can read the entire article at
HowStuffWorks "Rotary Engine Power" as the output shaft does indeed rotate three times for every one rotation of the rotor. THIS is why the engines can rev to 9,000-12,000 as those revolutions of the output shaft, not the rotors. In reality at 9,000 rpm the rotors are only making 3,000 rpm.
Quote:
654cc x 6= 3924cc
what does renesis stand for?. another selling hype?
|
654cc per compression cycle x 2 rotors = 1308cc. Displacement is not total displacement of the rotor, just the displacement of the mixture during one combustion cycle which is only one side of the rotor at a time. As for Renesis that is just the name given to the updated version of the 13B twin rotor engine, not a gimmick, just a distinction.