Can combustor on piston engine?

  • Thread starter Thread starter uknowho
  • Start date Start date
  • Tags Tags
    Engine Piston
Click For Summary
SUMMARY

The discussion centers on an innovative adaptation of a can combustor to a 2-stroke inline cylinder internal combustion engine (ICE) equipped with turbochargers. This design allows combustion to occur in the intake runner rather than the cylinder, enhancing efficiency and power output compared to traditional 4-stroke engines. Key features include a unique piston ring placement below the exhaust ports, which minimizes oil loss and emissions, and simultaneous intake and exhaust processes. However, skepticism arises regarding the plausibility of maintaining combustion pressure greater than the upstream pressure generated by the turbo system.

PREREQUISITES
  • Understanding of 2-stroke engine mechanics
  • Familiarity with turbocharger functionality
  • Knowledge of internal combustion engine design principles
  • Basic concepts of fluid dynamics in engine applications
NEXT STEPS
  • Research the mechanics of 2-stroke engines and their efficiency advantages
  • Explore turbocharger design and its impact on combustion processes
  • Investigate the implications of piston ring placement on engine performance
  • Learn about advanced combustion techniques in internal combustion engines
USEFUL FOR

Engineers, automotive designers, and enthusiasts interested in innovative internal combustion engine technologies and performance optimization.

uknowho
Messages
2
Reaction score
0
I found this engine amoung the many on the web from inventors out there. Essentially this person adapted a can combustor onto an inline cylinder engine with turbos. Below I pasted the description from the site. What are your thoughts on this one?


http://video.educa.ma/internal-combustion-engine-lMp!uKmClLOmm9k.html
Description:
This is a 2 stroke inline cylinder internal combustion engine. The combustion takes place in the intake runner as opposed to the cylinder like that in a traditional ICE. A wall of high pressure air generated by the turbos and enhanced by the counter-rotating radial and axial swirl vanes force the combustion gases in the direction of the piston. Thus forcing it down which exposes the exhaust ports in the cylinder walls where the exhaust gases exit into the turbos. Note there are no obstructions such as valves in the way of either the intake or exhaust track. This engine can produce flow numbers OHV engines can never achieve. The ring package on the piston is below the exhaust ports which minimizes oil loss and harmful emissions common in 2 strokes. At no point do the rings pass over the exhaust port. Since the combustion takes place in the intake runner there is no concern of leakage of the raw fuel into the exhaust port. The piston is not used to draw in the fuel/air charge but serves as a valve sealing off the exhaust port. This engine performs the exhaust and intake step at the same time. Which is when the piston is at BDC to TDC. The compression and combustion take place simultaneously as well which is when the piston is TDC through BDC. This makes the engine far more powerful and efficient than a 4 stroke engine common in most automobile.
 
Last edited by a moderator:
Engineering news on Phys.org
First, that's a horrible animation. It jumps frame to frame so quickly I can't follow the flow path.
Second, the basic premise just sounds implausible to me. Would not the pressure up-stream of combustion (the "wall of high pressure air generated by the turbos and enhanced by the counter-rotating radial and axial swirl vanes") have to be greater than the combustion pressure?

Also: "The ring package on the piston is below the exhaust ports." If so, then what contains the pressure for moving the piston?
 

Similar threads

Replies
11
Views
4K
  • · Replies 22 ·
Replies
22
Views
2K
  • · Replies 123 ·
5
Replies
123
Views
33K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 39 ·
2
Replies
39
Views
4K
Replies
4
Views
6K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 35 ·
2
Replies
35
Views
4K
  • · Replies 31 ·
2
Replies
31
Views
4K
Replies
13
Views
6K