Here's the gauge that tells me how much heating oil is left. You pump that lever at five o'clock like crazy until the dial stops moving. I'm trying to wrap my head around how it works. The more oil is in the tank, the longer I need to pump.But the important thing is that it looks fantastically steam punk-y.
4 comments:
thats a cool gauge...
but it looks like your in for a big refill bill!
hahahha.... steam punk-y.... love it.!!
Hi there,
My guess is that it pumps air into a downward pointing tube which enters at the top of the tank. The open end of the tube is near the bottom of the tank. The more oil in the tank,the higher the pressure required to reach "blow-off pressure". It reads cm of oil above the bottom of the pipe. Ingenious, simple, non-digital and still working after all these years! It would be great if these comment boxes allowed a little sketch option ;)
Johann speaks the truth. It can't maintain a pressure until the bubble escapes, the pressure gets higher and higher till it matches pressure under all the fuel. Actually, modern fuel terminals use the same system with pressurized nitrogen from tanks and computerized sensors.
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