Rotary atkinson cycle engine

In summary, the conversation discusses the use of rotary engines in production and their success compared to the Wankel engine. The difficulty in creating precise geometries and proper sealing for these engines is mentioned as a major challenge. The Wankel engine's sealing problems and issues with fuel and oil consumption are also discussed.
  • #1
chhitiz
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http://white-smoke.wetpaint.com/page/Rotary+Engine [Broken]
does anyone know of this engine being used in production?
 
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  • #2
Nowhere that I know of.
There are several such rotary engine designs floating around, none has come close to the Wankel in terms of market success.
There is a real need for a lightweight and powerful engine of this type in the aviation world, which is still using 1940s vintage piston engines, but nothing has been able to get certified for use.
In this case, the design seems to call for some pretty exact geometries and sliding seals, which are hard to make. There were sleeve valves used in some WW2 fighter engines which were not the most reliable.
 
  • #3
etudiant said:
In this case, the design seems to call for some pretty exact geometries and sliding seals, which are hard to make.

what about the wankel engine?
it needs some exact geometries and is not hard to make practically. i think major problem is the sealing of surfaces of rotors against the housing.
 
  • #4
chhitiz said:
what about the wankel engine?
it needs some exact geometries and is not hard to make practically. i think major problem is the sealing of surfaces of rotors against the housing.

Circular housings are fairly easy, but straight slides are more difficult.
The Wankel sealing problems were managed, but not really solved. Fuel and oil consumption was an issue throughout.
 
  • #5
etudiant said:
Circular housings are fairly easy, but straight slides are more difficult.
what does that mean?
 

What is a rotary Atkinson cycle engine?

A rotary Atkinson cycle engine is a type of internal combustion engine that uses a rotary design to convert fuel into energy. It is known for its high efficiency and low emissions compared to traditional piston engines.

How does a rotary Atkinson cycle engine work?

The engine works by using a rotary design to compress a fuel-air mixture, which is then ignited to produce a power stroke. The unique rotary design allows for continuous combustion, resulting in a longer power stroke and more efficient use of fuel.

What are the advantages of a rotary Atkinson cycle engine?

The main advantages of a rotary Atkinson cycle engine include its high efficiency, low emissions, and compact size. It also has fewer moving parts compared to traditional piston engines, making it more reliable and easier to maintain.

What are the limitations of a rotary Atkinson cycle engine?

One limitation of a rotary Atkinson cycle engine is its lower torque output compared to piston engines. It also tends to have higher manufacturing and production costs due to its complex design. Additionally, it may require special lubricants and cooling systems.

What are the potential applications of a rotary Atkinson cycle engine?

The rotary Atkinson cycle engine has potential applications in various industries, including automotive, aviation, and power generation. It can also be used in hybrid vehicles and as a range extender for electric vehicles. Additionally, it has the potential for use in portable generators and small engine applications.

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