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13 Aug 2006, 15:16 (Ref:1681287) | #1 | |
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Electric Oil Pump
Does anyone know where I can source an elctric oil pump? The only oes I can find on the web seem to be just for an oil cooler. I'd like to replace the mechanical pump totally (and get rid of some parasitic losses too )
It doesn't matter what engine they're meant for- I can modify to fit! Any pointers gratefully accepted! |
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13 Aug 2006, 22:19 (Ref:1681626) | #2 | |||
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Ask the Audi Works if they have a spare from one of the A10s. Last edited by thebear; 13 Aug 2006 at 22:28. |
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15 Aug 2006, 15:49 (Ref:1683343) | #3 | ||
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Surely engine speed and pump speed are related, I cannot see this working at all, never heard of it before but what do I know!
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15 Aug 2006, 16:25 (Ref:1683364) | #4 | ||
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Dry sump pump + e.motor to operate?
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15 Aug 2006, 16:43 (Ref:1683378) | #5 | ||
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15 Aug 2006, 17:09 (Ref:1683394) | #6 | ||
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Not at all I have that on my IROC (the Black un) its a wet sump engine with an electric Accusump plumbed in, as soon as you turn onthe ignition the valve in the Accusump opens and delivers oil around the engine to about 40psi (or what ever it was when you shut the engine off) prior to start up. Its quite odd to see the oil pressure rise before the engine is even fired up. Available from the good folk at Think Automotive or Real Steel, both near London.
Last edited by Al Weyman; 15 Aug 2006 at 17:12. |
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15 Aug 2006, 18:58 (Ref:1683509) | #7 | ||
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the accusumps are great. Really good investment.
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15 Aug 2006, 19:06 (Ref:1683515) | #8 | ||
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I have n electric oilpump from lubrication Recearch in my Hemipanter. The pump is named as a "preluber" device. Also used in turbo aplication to circulate oil after the engine is shut down to cool turbo bearings, which is don using a special ecu device. Motor is a 12v 3900 rpm motor, 60 Ah caability fused to 30 Ah.
The unit is perfect for prelubing the engine before fire up or filling the whole cooling system after an oil change. Also for draining the system from oil. Howeveer, it should be possible to manage a few mile of driving ack home in case of an emergency using only the preluber pump. When looking att the preeluber pump one strikes of the fact that an totally electrified oilpump system should need a very bulky pump using a motor comparable to a starter motor at least. This in turn put some demand on the alternator to say the least. Goran Malmberg |
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15 Aug 2006, 19:54 (Ref:1683549) | #9 | ||
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Quote:
I'll check out the suppliers suggested! The main reason is to get sufficient oil pressure at the bearings before startup to avoid wear. As an aside, I know that the owners of some Cosworth (DFV?) GP cars have fitted these types of pumps to their engines. Due to the fact that they get 'timed out' like aircraft engines when they are run, to warm the engine most of the way, they fit a heating element of some kind and switch on the electric pump. That way the engine heat soaks to a certain temperature without causing undue run-time! Nice |
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15 Aug 2006, 22:33 (Ref:1683700) | #10 | ||
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Those F1 systems are external to the car, though, and they use them for coolant as well.
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16 Aug 2006, 11:19 (Ref:1684064) | #11 | |
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If anyone finds a 7 bar plus electric oil pump which will flow 40 litres per thousand rpm, please post the details here.
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17 Aug 2006, 14:33 (Ref:1685089) | #12 | ||
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I have ofren wondered about electric pumps for this and that, But the thing that allways crossed my mind is the bit, You Dont get somthing for nothing, surly if it takes 5hp to drive the oil pump, and you remove the pump from the engine and put an electric motor on the pump, does it still not take 5hp to drive the pump?? so obviously the power has to come from somewhere, and obviously the alternator has to provide the power, with the extra loading on the alternator does this still take 5hp to provide the exta power to drive the pump??,
I would have thought the power savings in pump parasitic losses would be better made in design and low friction materials if friction losses are relevent in such a well lubticated situation, and thinner synthetic oils. I can see the advantage of driving the pump from an seperate battery and charging in the pits, but if the battery goes flat Bang goes your engine!! We used to Drag Race with a switch in the power line from the alternator which efectivly turns off the coils and loadings from the alternator. if you are still keen on an electric oil pump what about some of the new generation Electric PAS pump. Ian |
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18 Aug 2006, 11:33 (Ref:1685894) | #13 | |
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Electric Oil Pump
Perhaps these chaps may be able to help.
http://www.emp-corp.com/html/product...ricOilPump.asp Rgds John |
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19 Aug 2006, 08:43 (Ref:1686491) | #14 | ||
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Think its usefull for a better centre of gravity in racing and packaging advantage for example in mid engined cars
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19 Aug 2006, 09:29 (Ref:1686523) | #15 | |||
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Quote:
There are also single stage belt driven oilpumps for wet sump systems. Goran Malmberg |
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19 Aug 2006, 12:42 (Ref:1686613) | #16 | ||
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Maybe its not possible to use the lowest possible position with a belt driven pump because the belt restricts the possible positions.
But I think this is maybe important for F1 and some others, but not for my street VW lupo |
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25 Aug 2006, 20:56 (Ref:1691758) | #17 | |||
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Quote:
Last edited by dtype38; 29 Aug 2006 at 18:53. |
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1 Sep 2006, 10:17 (Ref:1699183) | #18 | |||
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It's like these people who think that running a Lexus or Toyota Hybrid drive car is better for the environment. It is not, because of the reasons I describe relating to the efficiency of generating devices, and storage devices, let alone the motors themselves. I have seen many road tests for these, and their overall fuel consumption is higher than that of a conventional drive vehicle, plus there is the end-of-life disposal of the batteries to consider. Not green, no no no no no no nooooooooo. The most efficient drive is direct mechanical with low friction in that drive. Using the pump, like an accusump, to pre-charge the oil system before the engine fires is fine. To expect to use it in place of the existing system, I feel is misguided. Until we get the Mr Fusion Home Energy Generator (as fitted to a certain DeLorean), we won't be getting something for nothing (or nearly nothing!). Rob. |
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30 Sep 2006, 21:52 (Ref:1723907) | #19 | ||
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VDO make a specific oil pump. its about 75% of the size of a modern external electric fuel pump. we use them for diff and gearbox oil coolers. i have seen them used as an engine oil coller pump, separate to the main pump. it would not be hard to rig them for priming, but I dont know their stall pressure.
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2 Oct 2006, 23:52 (Ref:1725787) | #20 | |
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Possibly?
Check out paceproducts.com.uk They surely have something that will let you get rid of the internal mechanical pump and replace it with an external electric or mechanical.
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3 Oct 2006, 15:25 (Ref:1726500) | #21 | |||
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