Once the pulse jet engine has been used for some aircrafts. But they were noisy and moreover consumed huge fuel. Here I propose an revised pulse jet engine, which could consume fuel much less than original one (it's still noisy, though.)
http://hecoaustralia.fortunecity.com/pulsejet/plje.htm
Quite a revision. From a pulse-jet with maybe three moving parts to a reciprocating engine that appears to lose quite a bit of thrust driving the flywheel. OK. 
QUOTE (Sapo+Oct 31 2007, 04:31 PM)
Quite a revision. From a pulse-jet with maybe three moving parts to a reciprocating engine that appears to lose quite a bit of thrust driving the flywheel. OK.
Possibly
Possibly
Is that thing meant to drive a plane or is the flywheel to be used for ground based power generation?
PhysOrg scientific forums are totally dedicated to science, physics, and technology. Besides topical forums such as nanotechnology, quantum physics, silicon and III-V technology, applied physics, materials, space and others, you can also join our news and publications discussions. We also provide an off-topic forum category. If you need specific help on a scientific problem or have a question related to physics or technology, visit the PhysOrg Forums. Here you’ll find experts from various fields online every day.
To quit out of "lo-fi" mode and return to the regular forums, please click here.