General Rotary Tech Support Use this forum for tech questions not specific to a certain model year

New Rotary Engine Patents (2019)

Old 06-21-19, 11:07 AM
  #1  
Rotary Freak
Thread Starter
iTrader: (3)
 
funkjaw's Avatar
 
Join Date: Jul 2008
Location: San Jose, CA (NorCal/S.F. Bay Area)
Posts: 2,506
Likes: 0
Received 1 Like on 1 Post
New Rotary Engine Patents (2019)

https://garagealpha.com/blogs/news/n...x0YHEY895GxMOw

Direct link to Patent PDFs:
https://cdn.shopify.com/s/files/1/00...15266A.pdf?171
https://cdn.shopify.com/s/files/1/00...15263A.pdf?172

Breakdown:

- Two rotors
- 2 side intake ports
- 1 side exhaust port
- 1 peripheral exhaust port that opens under high load that dumps POST turbine and also feeds an EGR valve
- Twinscroll turbo charger fed by side exhaust port

There is defintiely more to these patents, but this is what I have gathered by copy/pasting bits of the patents into google translate.

What do you guys think? To me this is as promising as it gets that Mazda is in fact releasing a new rotary sports car.
funkjaw is offline  
The following users liked this post:
WJM ROTARIES (06-22-19)
Old 06-22-19, 04:11 AM
  #2  
Senior Member
 
WJM ROTARIES's Avatar
 
Join Date: Aug 2012
Location: MELBOURNE AUSTRALIA
Posts: 603
Received 22 Likes on 22 Posts
Verrrrrrrrrrry Interesting News .Something is going on at Mazda
WJM ROTARIES is offline  
Old 06-23-19, 04:49 AM
  #3  
Senior Member
iTrader: (1)
 
John Huijben's Avatar
 
Join Date: Oct 2010
Location: The Netherlands
Posts: 587
Likes: 0
Received 3 Likes on 2 Posts
This is cool. I wonder how they will get around the side seals failing as is common with an turbocharged RX-8 engine.
Maybe because the side intake and side exhaust ports are on opposed sides of the engine which allows them to run a different seal configuration on each side of the rotor?
Or maybe they will recirculate a lot of EGR during boost which lowers exhaust temperature.

Anyway, very curious to see if this tech will actually make it into a product someday, and what the application will be. This seems too complicated for an engine that will just function as a range extender.
John Huijben is offline  
Old 06-23-19, 11:18 AM
  #4  
Playing Well
iTrader: (19)
 
Natey's Avatar
 
Join Date: Aug 2004
Location: Santa Cruz
Posts: 3,892
Received 56 Likes on 44 Posts
Weren't they working on a hybrid that uses a tiny rotary as the gas engine? Could have sworn I read that somewhere...here!

Maybe these patents mean they're moving forward.

https://www.drive.com.au/news/mazda-...iveline-120928
Natey is offline  
Old 06-23-19, 11:46 AM
  #5  
Lives on the Forum
iTrader: (9)
 
BLUE TII's Avatar
 
Join Date: Mar 2001
Location: CA
Posts: 7,094
Received 148 Likes on 131 Posts
Mazda has confirmed they will release the all Mazda EV with the single rotor range extender as a 2020 model and then follow up with further hybrid models based off their collaboration with Toyota.

It has been variously reported to be a crossover and based on Mazda3, though the prototypes were based on the Mazda2. My bet is it will be an optional model of the freshly debuted CX30 platform.
BLUE TII is offline  
Old 06-23-19, 11:53 AM
  #6  
Lives on the Forum
iTrader: (9)
 
BLUE TII's Avatar
 
Join Date: Mar 2001
Location: CA
Posts: 7,094
Received 148 Likes on 131 Posts
Maybe because the side intake and side exhaust ports are on opposed sides of the engine which allows them to run a different seal configuration on each side of the rotor?
Or maybe they will recirculate a lot of EGR during boost which lowers exhaust temperature.
Maybe having the single exhaust port on the side of the rotor opposite the oil jet allows the rotor to be cooled enough to preserve the springiness of the Inconel side seal springs.
BLUE TII is offline  
Old 06-23-19, 06:14 PM
  #7  
malignant narcissist
iTrader: (2)
 
diabolical1's Avatar
 
Join Date: Feb 2002
Location: FL
Posts: 9,534
Received 61 Likes on 57 Posts
this all seems interesting, but i made the decision a while back not to believe anything rotary until i can go see it on a dealer floor.

that said, i wonder what chamber size/dimensions they went with for this one.
diabolical1 is offline  
Old 06-24-19, 01:39 PM
  #8  
Rotary Freak
Thread Starter
iTrader: (3)
 
funkjaw's Avatar
 
Join Date: Jul 2008
Location: San Jose, CA (NorCal/S.F. Bay Area)
Posts: 2,506
Likes: 0
Received 1 Like on 1 Post
So the most exciting thing about this patent is this diagram - as it clearly shows an FR layout car (as opposed to a range extender):


Also another interesting thing: I can't seem to find any reference to OMP or displacement in either of the two patents....
funkjaw is offline  
Old 06-24-19, 06:36 PM
  #9  
Racing Rotary Since 1983
iTrader: (6)
 
Join Date: Oct 2001
Location: Wisconsin
Posts: 5,368
Received 53 Likes on 34 Posts
turbo looks like it is bolted to the engine similar to many these days...
Howard Coleman CPR is offline  
Old 06-24-19, 08:50 PM
  #10  
NorCal Mazda Founder
iTrader: (7)
 
Mazdaspeed RX8 ver2's Avatar
 
Join Date: Feb 2006
Location: Hayward, CA
Posts: 381
Received 26 Likes on 23 Posts
definitely interesting.... i'm still not convinced on a rotary sports car just yet but promising.
Mazdaspeed RX8 ver2 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
reddozen
Deals Gap Rotary Rally
54
05-01-19 09:36 AM
neit_jnf
General Rotary Tech Support
3
02-16-18 01:45 PM
userjh5174
Rotary Car Performance
2
05-27-09 02:09 AM


Thread Tools
Search this Thread
Quick Reply: New Rotary Engine Patents (2019)


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: