Electric water pump for engine cooling : DigInfo

[braaup]

Just another thing to go bad.

[1971SuperLead]

You could put a clutch on a mechanical water pump and operate it like an AC compressor. Otherwise....this electric waterpump is actually going to use as much power or probably more power than a mechanical pump. Once the engine is up to operating temperature the pump has to be on continiously and an electric pump is going to use about 33% more power than a mechanical pump.

[Lokivoid]

@1971SuperLead

Trick with a electric pump is its variable, a clutch is ether on or off, once on the GPM rate is decided by engine RPM. electrical pumps allows better micromanagement, Overall it is not about electrical consumption. by having better variable controll over the load you can effective gain a fue horsepower on accelleration. Its the same concept as electric radiator fans.

[1971SuperLead]

@Lokivoid So the conventional thermostat is removed? If so, that might work...in colder climates. I hope you know that the water pump always has to be working to some degree or you will burn valves and warp decks. You might even crack the block if a sudden rush of cold water hits a warm block.

[Lokivoid]

@1971SuperLead

The theromostate depends on what level operation your going to place on the pump, in standard operation you would not need to replace it, as its just a thermomechanical bypass valve. I also never stated a electrical pump would be turned off at any given point of engine opperation. What i stated was micromanagement, with a electrical motor there is no need for cycleing on/off like "an AC compressor", as the electric motors speed is independantly variable.

[Lokivoid]

@1971SuperLead

Also keep in mind i am speaking for a engineering and mechanic standpoint (ASE certified in A6,A7,A8,A9). With that noted, i am not saying such a system is without faults, i was just simply stating the point of use. My personal concerns would be more towards the loads placed on the electrical system / alternator.

[1971SuperLead]

@Lokivoid Yup, the alternator would have to be about 50% larger to power the water pump. Lot's of costs involved to go electric. I wonder if it's all worth it.

[Lokivoid]

@1971SuperLead

I suppose that would depends on role of the vehical, for a high performance enthuiest with absoluteing no concerns on fuel econcomy or cost sure i can see it having a role. For general consumer or commerical use, No not atleast not with current designs anyways. Personally the only reason i would ever buy one (from a salvage yard) would be to experiment with on a CSB testbed and get some solid numbers down.

[1971SuperLead]

@Lokivoid Common sense tells me that giant auto manufacturers have certainly entertained the idea of electric water pumps already......and found the test results to be disappointing.

[Lokivoid]

@1971SuperLead

yep as i stated "For general consumer or commerical use, No" The gains are not worth the added production costs. Though I would not be surpised if a overpriced BMW sport model utilized one to some degree, there always putting alot overly complicated systems in vehicals for minium gains. The testing aspect was more for personal entertainment value if anything, that and a excuse to piss off the neighbors.

[Membrane556]

How is this new they been selling electric water pumps for drag cars for years?

[flanksteak2]

@Membrane556 It regulates temperature by adjusting the RPM of the pump rather than just running the pump with engine speed and regulating temp with a thermostat.

[Membrane556]

@flanksteak2

Actually some racing electric pumps do exactly that it's even shown in a related video.

[flanksteak2]

@Membrane556 Which ones?

Also, this is a trade show. The items shown are to show off engineering so that different automobile companies can view the work of different firms that they may hire in the future to design parts for their cars.

Not necessarily to show "technological breakthroughs".

[noleftturnunstoned]

this is not amazing at all, it is only the next logical step I am very surprised that this was not already in place in hybrid engines.

[michaelovitch]

A petrol made water pump to consume less petrol........

SHIT.

[crazylegos13]

It would be very effectve.

[TDKSuramar]

Well its seems unique in that it is a brushless design with the coils encapsulated in the plastic case. Very small, light and non-power robbing. Pretty cool.

[boldsword1]

How the hell is this news? I've had an electric water pump on my car since 2001.

Meziere, Moroso, Proform, CSR, Summit, and many others make electric water pumps for a great variety of vehicles. I hate hyped false progress.

[michaelovitch]

@boldsword1

yep !

The bad thing in this false progress is the fact that this electrical water pump is less reliable more expensive to change and more expensive to build because more complicated and full of electronic.

moreover it's not recyclable as steel or aluminum and it uses more energy (a lot of water and petrol )to build plastic shit water pump....

[IrishPalestinian]

@boldsword1

You just like to hate, those racing pumps aren't finely controlled and modulated like this unit. I also use an electric pump on my small 4 cylinder engine-but that doesn't take away from this refinement

[boldsword1]

@IrishPalestinian

You reply with this nonsense 11 months later and I am the one who just likes to hate? Finely controlled and modulated? Have you ever hear of a PWM power supply? Any dc motor can be modulated, and many of the name brand pumps use brushless motors that have a wide range of adjustment. You wanna show me a breakthrough in electronic control? Make the valves solenoid activated, THAT would be something noteworthy.

[datzfast]

great now my water pump can overheat

maby it can get its own pump to fix that.

[nacho1741]

EXACTLY............

[Chick6517]

if this video was entered into an awards show i wonder how well it would do? what do you think., i think it might get nominated for something,

[mattydavid12]

Wow This is awesome!

1st Comment!