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P-40 Stirling engine

Posted: Wed Nov 24, 2021 11:26 am
by airpower
Crowdfunding has recendliy been compleded in reversengineer the P-40 Stirling engine.
https://www.indiegogo.com/projects/reve ... g-engine#/
The engine has been successfully tested in several cars, (AMC Spirit DL, 1977 P-40 Opel, 1980 AMC Concord) 50,000 miles (80,467 km) and achieved average fuel efficiency up to 28.5 mpg‑US (8.3 L/100 km)
The MOD II project in 1980 produced one of the most efficient automotive engines ever made. The engine reached a peak thermal efficiency of 38.5%, compared to a modern petrol engine, which has a peak efficiency of 20-25%. The 1986 MOD II Report (1985 4-door Chevrolet Celebrity notch back) showed that highway gas mileage was increased from 40 to 58 mpg‑US (5.9 to 4.1 L/100 km) and achieved an urban range of 26 to 33 mpg‑US (9.0–7.1 L/100 km) with no change in vehicle gross weight.
Disadvantages: Start up time and acceleration, both can easy be overcome with electric hybrids.
http://zigherzog.net/stirling/reports/1 ... 021349.pdf

https://cdn4.explainthatstuff.com/car-s ... engine.jpg
MOD II engine https://static.dvidshub.net/media/thumb ... 0w_q95.jpg
Image

Re: P-40 Stirling engine

Posted: Fri Nov 26, 2021 5:50 pm
by Nobody
Hybridizing is giving a boost to the ICE. It is hoped that it will boost the Stirling Engine as well.

Re: P-40 Stirling engine

Posted: Sat Nov 27, 2021 12:56 am
by airpower
Nobody wrote: Fri Nov 26, 2021 5:50 pm Hybridizing is giving a boost to the ICE. It is hoped that it will boost the Stirling Engine as well.
I am confident it will boost the Stirling Engine because it has significant advantages but it is only do-able with a hybrid configuration.

Here is another video of the 54 hp stirling
https://youtu.be/aS3FykT7skE?t=3