Electric water pumps (was) alt charging cont sw

[Greg Hermann]

>>
>> I have pondered the us of electric water pumps and I believe that they would
>> be beneficial in many ways:
>>
>> First no thermostat would be needed, when the engine get's to operating temp
>> the pump would turn on..
>
>The pump has to run all the time, you don't want water sitting still
>inside the block.  It'll boil away from the cylinder walls before it
>even gets warm wherever your temp sensor is.  When the thermostat is
>closed on a normal engine there is still water flowing through the
>engine, either out thru the heater core and back in, or through a bypass
>in the water pump or something.

Why doncha all just go buy Waukesha engines designed for ebullient cooling,
and be done with the need for a water pump?? Course, they're kinda HEAVY
for going quick, ya might get a tad of understeer, mebbe pop the front
tires, or break off the spindles!

Greg
>
>>
>> Second the pump can run at varying speeds, while light cruising the pump
>>speed
>> would be slower than at full steam, saving fuel..
>
>makes sense.
>
>>
>> Thrid the engine could theoretically warm up quicker as there would be
>>no leak
>> past a closed thermostat and coolant wouldn't be circulating through a cold
>> engine...
>
>see above...
>
>>
>> Fourth reverse flow coolant systems could be retorfitted easily just by
>> reversing the current to the pump, no special reverse flow pump impellers
>> would be needed...
>
>isnt' there more to reverse flow than just turning the pump backwards?
>reverse rotation water pumps have been around since they came up with
>serpentine belt drives, but they still made some weird cam driven pump
>for the reverse flow LT1.
>
>--steve
>
>
>>
>> Scott
>
>--
>Steve Ravet
>steve.ravet at arm.com
>Advanced Risc Machines, Inc.
>www.arm.com