Half a croissant, on a plate, with a sign in front of it saying '50c'
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Slow-burning fuel engine

Make car engine that works on slower fuel consumption
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The use of exploding fuel is probably ineficient and in any case is noisy, pollutive and hazardous (at least to the environment, see 'oil spills', 'smog' and 'car explosions').

So the proposed motor here is to work on slow heating fuels such as compost, manure and hot roofs.

I'm not quite sure of the exact process to harness that heat. Actually I have several ideas, but would like to hear other ideas for this:

First, all living and even vegetative beings use a similar process, by using ultra eficient "nano-motors" - creating ATP from sugar and then consuming it in the muscle cells. Perhaps we need to create mini (not necessarily micro) steam engines. Or maybe use material expansion from heat, to get a motor to move. (Maybe heating and cooling). Perhaps the energy could be used with a transmission system to cause wheels to turn...

pashute, Mar 28 2008

New Rotary Engine of Disruptive Technology Type http://rotaryengine...pines.blogspot.com/
This is the simplest eccentric-rotor configuration with rotor as the main or major moving part and the hydraulic oil as the motive power supply. [rotary, Mar 29 2008]

flickr slideshow for the New Rotary Engine http://www.flickr.c.../24884787@N06/show/
Check out how the individual components in compressor and turbine portions/segments comprising the: 1. single rotor assembly; 2. single housing assembly [rotary, Mar 29 2008]


       My thoughts were similar when I proposed the two-stage beer engine powered by evolved carbon dioxide during fermentation. Slow but powerful is almost certainly the way future engines will run - very high torque at very slow revolution rates, possibly with the engine running 24/7 and storing the energy elastically for power-on-demand applications.
vincevincevince, Mar 28 2008

       Interesting. Cylinder (or what have you) leakdown would be a significant issue - I'm thinking a captive working fluid heated externally, like a Stirling.   

       Huh. Could you get enough memory wire going to make this work, say some of the springs? Slow is the word, but relentless.   

elhigh, Mar 28 2008

       I think this is a wish in search of an invention.
MaxwellBuchanan, Mar 28 2008

       Here is a much better insight: I have invented a very fast burning, extremely efficient rotary engine for a very slow burning fuel like mineral oil, diesel, bio-diesel, or straight vegetable oil. This could be the practical scenario equivalent to your proposal: the fuel oil is quickly consumed by my hybrid engine design--much like sharks do to blubbery seals; then energy is stored in hydraulic accumulator--much like calorific cells come closer to the muscle tissues as stored fats; then pressure is released to the hydraulic motor by fast-response valve system opening appropriately depending on the power demand--much like a how able a shark flips its tail, either for slow cruising speed or for chasing prey.   

       Check this out for future reference: Blog of my "New Rotary Engine of Disruptive Technology Type". Check out the link I supplied. The future of rotary engine is brighter than ever! Would you agree?
rotary, Mar 29 2008

       Um the btu output of a compost pile, while surprisingly high is not going to move that pile anywhere at all fast. The energy/weight ratio of raw biofuels is pathetic. Add in a slow and incomplete method of extraction that happens only at relatively low temperatures and..... you have a horse. Get over it.
WcW, Mar 29 2008

       Do i see 16 apex seal and 32(36?) planetary seals? How do we get the air in? do the rotors float? How do we start it?
WcW, Mar 29 2008

       WcW, the tightly fitted outer rotor walls (or cladding), the inner housing four contoured apexes/tips and inner rotor three contoured apexes/tips act as seals: They can be separate and spring-loaded in larger models or integral feature in thinner and smaller ones. The air is channeled in through air filter then to the suction chambers as intake ports in the rotors are inherently uncovered by its unique movement. The rotor components are fixed by a single bolt and aligned by three pins while assembled together with the housing. Starting is achieved either by hydraulic means (by reversing the hydraulic pump), or by pneumatic means (by introducing compressed air to the turbine side).   

       Click on the flickr link provided in my blog to appreciate the individual components. Or, check that link to it here.
rotary, Mar 29 2008

       [rotary] I hope all your ideas have the same amount of carnivorous metaphor.
marklar, Mar 30 2008

       Oh marklar, all of them have. These "New Engine of Disruptive Technology" concepts build into one formidable invention are equivalent to lone monster shark among the carnivorous seals representing the conventional engines and the newbie hybrid technologies! Sad metaphor, I think…
rotary, Mar 30 2008

       Heat engines are more efficient with greater temperature differentials. Therefore, I expect a slow-burning-fuel engine would be less efficient, because it wouldn't get as hot. Also, if it was more efficient, we'd already be using it.
notexactly, Apr 16 2018


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