im trying to explain why rotary enignes can rev higher than a piston engine to my girfriend who doesnt really know anything about either concepts....yes i know im not proud...ha ha jk i love her

 

Only 3 moving parts.

That usually works, especially if you have a couple valves, springs, rockers, and pistons to use as a visual aid.

 

Pistons have to constantly change direction, rotors spinning are much smoother letting it rev faster and longer with less chance of damage.

 

give up...girls will never understand

codeblue2 (or any female members)...i hope you dont see this thread

click on my sig and you can use pics on page 3 for reference

 

A properly built piston motor can rev too... 15,000 RPM on an R6 motor...

 

Yes, but you're talking a race specific motor, I'm sure.

 

Not really... Anyone could pick up an R6 for 10,000 and ride it home. Thousands of them on the streets revving to 15k

 

Just check out howstuffworks.com. They have lots of good info with visual referernce on both piston and rotary motors.

 

Theres a great image in 'Rotary Engine' by Yamamoto, its got the major parts from a boinger laid out next to the major parts of a rotary. The rotary has fewer parts in it than just one head of the pistion engine.

 

 

Take a can, slap it against the wall, then repeat again.

Take a ball, roll it against the wall...

Which one has less friction and which one has to work the least?

- Tech

 

and that is a motorcycle engine, with pistons around the size of a hummingbird. the bigger the engine the lower the rpms can go.

back on topic, my wife knows how a rotary works, and talks some major **** to people who dont with lines like, "ITS NOT A 4 CYLINDER. its a rotary, i know that and im a girl! wanna know how it works?"

"hey dude you're about to burn a snail on your exhaust, let me show you a real turbo(*as she points to a t2 or single turbo fd*)"

"Want me to play with your wankel?"