Running a lawnmower

[mscoffman]

@AK

Rather then psi's mechanics speak of engine "compression ratio" and
"displacement" volume.

A normal auto gasoline engine is 10->13 compression ratio and
that translates to 150->200 psi at TDC over the 1bar at BDC.
Change the height of the piston or the length of the piston
rod to change the compression ratio but that will change the
displacement some also. To change just the compression ratio would
require a different crankshaft. Diesels have a 16->22 compression
ratio but the also inject the fuel under pressure. I'll bet a new lawn
mower has less compression to enable easier manual pull starting.

Constant: One "Bar" = 1 atmosphere = 14.7psia
Lawn mower = stationary engine

a link for details;
http://en.wikipedia.org/wiki/Compression_ratio

:S:MarkSCoffman

[Artic_Knight]

thanks for the link im gonna have to get educated on this   i would consider it near pointless to make a deisel mod to a lawn mower because of the need of a alternator installed etc but for a car, perhaps that mod wouldnt be soo bad... then the spark plug energy (albiet probobly not much) could be used for more hho   i have some more studying to do.

thanks

[Cherryman]

Forum member Woodpecker had some great progress on running small engines on HHO, somehow he stopped updating..   

[Artic_Knight]

yes questionable isnt it? but alas i find that there are many good thoughts and very detailed advice in the attatched document, it is a good read which many may have seen already but is worth sharing.

i particularly find interest in alternating the corner which the hole is in to prevent current leakage and that efficiency is lost using amps above .5 per sq inch.

[mscoffman]

@Artic Knight

Here is a link that answers a number of above mentioned
questions on the engine side (only) of an hho installation
for small and large engines.

Hydrogen Fuel Engine Fundamentals Parts #1 thru 10 link:

http://www.youtube.com/watch?v=Jo88bRN8vFw

He is showing hydrogen, hydrogen storage etc. hho
would be similar except that the engine would require
additional outside air as he throttles the engine to low
power, and of course there is no hho storage available,
but pressurizing 5Kpsi or 10Kpsi hydrogen store wouldn't
be that fun either. So will require spot generation of hho.

Also 6->10LPM hydrogen for a 5HP engine.

:S:MarkSCoffman