rotary engine

A type of internal combustion engine consisting of a triangular rotor which rotates in an eccentric orbital motion around a epitrochoid housing. Advantages of this design are a compact size, mechanical simplicity (a two rotor engine has only three moving parts), high potential power output proportional to size, lightweight, high-revving and extremely smooth in operation. Disadvantages include high rate of fuel and oil consumption, complex sealing arrangement and high seal count, weak torque, more fragile than a four-stroke piston engine, and lower long term reliability. Also known as a Wankel engine (pronounced 'Vonkel') after it's inventor, Dr Felix Wankel.

Mazda's RX-7 is probably the best example of a car employing a rotary engine.

by johnnylongprong March 8, 2009

rosaury

penis ass bitch ugly ass whore boy she sucks penis for money but may be a boy cuz they have so much acne you cant see the rest of there face and they have no friends them ugly ass bitches, often bitches to there friends (if they have any friends) and they can be dicks to siblings that is why no one likes those fucking things.

rosaury: i am a penis
Dad: i know you are a penis
Mom: you were born a penis bitch

by John peter red December 22, 2013

Rotary Dial

Something that is old, old fashion or obsolete. Also out of style.

-Dude, i just got a blackberry!

-HA, those are so rotary dial.

by rotary fone March 26, 2011

Wankel Rotary Engine

A torture device once used as a punishment for those who have commited a crime. It fits onto one's penis or vagina, and then is twisted, via a motor, to violently to cause aggonizing pain.

It's a torture device, does it really need an example?

by Jacob Stilleti May 3, 2005

Wankel Rotary

A 3 man version of a Dutch Rudder which when viewed from above resembles the rotor of a Wankel engine and is also capable of the same high crank rpm.

The three of them then decided to end the evening performing a Wankel Rotary on each, because they were close bros like that.

by Kellogz69 May 6, 2018

rotard

Often used to describe a person who is obsessed with the Wankel design rotary engine, and usually Mazda RX7s in particular, to the point of total stupidity. In the mind of a hardcore rotard, teh RX7 is the finest automobile in modern history, and undoubtedly the best handling car evar. Most rotards will bristle and get quite defensive when confronted with factual issues relating to the fragility of their beloved engine, and will tend to make pointedly idiotic arguments to the contrary.

The rotard was quite humbled by the depressing task of pulling apex seal shards from his broken turbine impeller, and wondered if by removing them he was upsetting the perfect 50-50 weight distribution of his RX7.

by Cock McBlocken July 7, 2004

Rotary Engine Face

when you give a serious yet sad look on your face when you disagree with something and shake your head no

yo andy how about that mazda rx 7? *gives rotary engine face*

by Jwords April 26, 2008