[DeTomaso] Electric Water Pumps, The 21st Century of Water Circulation

Tomas Gunnarsson guson at home.se
Sat Apr 13 16:31:17 EDT 2013


No, I measured my alternator to provide 10-15 A at 700 engine rpm, 30 A
at 1000 rpm, 50 A at 1500 rpm and 60 A at 2000 rpm. Admittedly my
redline statement was a little exaggerated but don't expect the output
to be anywhere close to the nominal rating through the whole engine rpm
range.
 
Tomas

<-----Ursprungligt Meddelande----->
From: MikeLDrew at aol.com [MikeLDrew at aol.com]
Sent: 13/4/2013 9:26:36 PM
To: guson at home.se; eb0711 at kolumbus.fi
Cc: detomaso at poca.com
Subject: Re: [DeTomaso] Electric Water Pumps, The 21st Century of Water
Circulation


In a message dated 4/13/13 12 16 42, guson at home.se writes:




	32 A is the max output and that won't supply lights and engine
cooling fans reliably unless you keep the engine at constant redline.
	



>>>At the risk of showing my electrical ignorance, which is considerable
and profound....

I didn't think alternators had a linear output (unlike a belt-driven
water pump, where the volume pumped is directly proportional to engine
speed).  Don't alternators generate their output almost regardless of
engine rpm, from just above idle to redline, with power output 'trimmed'
by the voltage regulator based on electrical demand?

Mike


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