View Full Version : Need help with research paper


DYT
02-14-2003, 04:54 AM
Fellow rotorheads:

I'm doing a research paper on the rotary engine for my material science class. I have no trouble on finding how the rotary works, however since this is a material science class, I need to find out what materials are used in the rotary, and why they are used. It needs to be pretty specific like what type of steel (ex 1045). If anyone knows any books or websites or your personal knowledge it will be appreciated.

Buger
02-14-2003, 09:36 AM
HI DYT,

I previously posted this link which has some good info:

http://media.mazda.ch/dossiers/Wankel/Wankel%20E.pdf

Some excerpts from the paper:

"The inner surface of the rotor housing consists of a chrome-molybdenum alloy plating".

"Trochoid Surface - the surface against which the rotor moves. It consist of a chrome-molybdenum alloy. Molybdenum is one of the only materials that does not suffer from chatter marks in engine applications".

"Port Liner - Port liners "line" the side exhaust ducts of the new Renesis engine. The basic material of the port liners are made of aluminum titinate, the stoichiometric compound made of aluminum oxide and titanium dioxide. This material is characterized by its low thermal conductivity, extremely low thermal expansion coefficient which makes it very temperature resistant, and it is highly porous. The porosity makes this material very useful in engine construction. Its porosity is a result of the cooling process, during which critical interior tension brings about the creation of microscopic cracks, which partially close again when the material is heated".

Brian

DYT
02-14-2003, 05:09 PM
Hmm, thanks a bunch. That really helps.

What kind of engineer are you btw? Do you like it? I'm graduating next year and I'm a little nervous after my ethnics class.