Eliminating use for lubrication in an engine?

Click For Summary

Discussion Overview

The discussion centers around the feasibility of eliminating lubrication in an internal combustion hydrogen engine by using magnetic levitation to separate engine parts. Participants explore the technical challenges and implications of this concept, including the necessary voltage and current to achieve such levitation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant proposes using a magnetic field to keep engine parts separated, potentially eliminating the need for lubrication.
  • Another participant expresses skepticism about the suitability of internal combustion engines for this application, citing the need for sealing to prevent combustion product escape and the complexity of engine motion.
  • A participant seeks to further develop their idea and asks if they can post additional questions and diagrams related to the design challenges posed by a hydrogen engine.
  • One participant agrees that a seal would be necessary, implying that lubrication would still be required to prevent excessive wear.
  • Another participant mentions that while magnetic levitation has been tried in rotating machinery, the varying loads in a piston engine present greater challenges.
  • A participant suggests that the Wankel engine might be better suited for the proposed concept of using magnetic levitation.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of using magnetic levitation in internal combustion engines, with some supporting the idea while others highlight significant challenges and limitations. The discussion remains unresolved regarding the practicality of the proposed concept.

Contextual Notes

Participants note the need for sealing in internal combustion engines and the complications arising from varying loads in piston engines, which may affect the viability of magnetic levitation as a lubrication alternative.

Paul J. Daniels
Messages
2
Reaction score
0
I apologize if this is not the right forum to post a question like this...

Would the use of a magnetic field(using magnetic levitation) to keep the parts separated, prevent the need for a lubricant, in and internal combustion hydrogen engine??

Also, how much voltage, and how many amps do you estimate it would take to prevent impact in the piston cylinder?

Please explain the answer...
 
Engineering news on Phys.org
Welcome to PF!

Internal combustion engines don't seem very suitable to me for this application due to the need to seal them to prevent the escape of the combustion products and the complicated motion of the engine parts.
 
hmmm... Thank you, are we allowed to post further questions based on the same idea with a rough diagram? I'm honestly Just trying to figure out a feasible design based off the problems that would arise from the amount of force applied by a hydrogen based engine... I've got some idea how it would function, but not enough technical expertise in each field needed, only an idea that I am "fleshing out".
 
I think @russ_watters might be right. A seal of some kind would be needed which would need lube of some kind to keep it from rubbing too much.
 
This has been tried with rotating machinery where the forces on the bearings are pretty constant, I don't know if any are in commercial operation, with a piston engine and hugely varying loads the problem would be much greater.
 
I have always thought that the wankel engine would best suited for your notion .
 

Similar threads

  • · Replies 39 ·
2
Replies
39
Views
4K
  • · Replies 14 ·
Replies
14
Views
2K
Replies
2
Views
2K
  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 7 ·
Replies
7
Views
11K
Replies
17
Views
7K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 10 ·
Replies
10
Views
5K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K