Game-changing rotary engine muscles a go-kart - Smart Car Forums
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 06-16-2016, 07:18 AM Thread Starter
SCOA Club
 
BigWarpGuy's Avatar
 
Join Date: May 2008
Location: Hampton, NH
Posts: 10,363
Thanks: 2,124
Thanked 972 Times in 710 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 112 Post(s)
Game-changing rotary engine muscles a go-kart

I think this is neat. Gizmag. .PDF I think it has potential. Since it can run on a variety of fuels, it can be green. It is small yet could be built bigger, it could power a variety of size vehicles (cars, planes, boats, etc). I think it has potential.

BigWarpGuy is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 06-16-2016, 08:59 PM
 
Join Date: Feb 2013
Location: Toronto, ON
Posts: 912
Thanks: 1
Thanked 235 Times in 166 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 186 Post(s)
Interesting.

And then my engineering mind starts doing some analyzing.

It might not be a Wankel - the geometry is "inside out" - but it shares some headaches with the Wankel and has a few new ones:
- Poor combustion chamber shape with a high surface area to volume ratio ... lots of heat loss, lots of combustion quenching, means lousy efficiency and high HC emissions. Same situation as Wankel. And that alone means this will be a non-starter. But pressing on regardless ...
- Tip sealing. Same headache the Wankel has. The tip seals have combustion chambers on both sides of them and lubrication nowhere to be found ... unless it comes in with the fuel or is pumped in and the engine runs "total loss" lubrication. Either way, oil going through the combustion process is terrible for HC and PM emissions and that means this will be a non-starter. But pressing on regardless ...
- Rotor cooling. On this one, the intake and exhaust pass through the rotor. The intake is not a problem, but the exhaust is a big problem. Where does the heat go? With a Wankel you can pump oil through the central shaft and the inside of the rotor in copious quantities and it's (mostly) sealed from the combustion chambers. How do you do that when the intake and exhaust go through the rotor? In the disassembled view of the engine, this doesn't seem to have a forced lubrication system at all.

Overall assessment: Nope!
GoFaster is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Smart Car Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Changing Engine Davidl smart General Discussion 2 09-25-2015 09:41 AM
RX-8 Sets New Rotary-Powered Doorslammer Record smartcar111 The Car Lounge 2 03-15-2013 06:15 AM
LiquidPiston unveils 40-bhp X2 rotary engine with 75 percent thermal efficiency BigWarpGuy The Car Lounge 2 10-22-2012 10:41 PM
Wankel rotary ... in an Audi concept? rfernatt The Car Lounge 23 03-05-2010 02:30 AM
Smart vs Go-kart Boeschbuilt smart Videos 4 08-11-2009 05:09 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 

Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.