F1 » Renault reveals 2014 engine

Renault reveals the new engine it will provide to F1 teams for the 2014 season

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June 22, 2013 6:41 PM

So is the turbo geared to the crankshaft a al turbo-compounding or is it geared to a generator of sorts?
Can someone provide a link that shows a diagram or in depth technical description of this "heat recovery system?"
...so it seems the new formula is a fuel economy formula? Isn't Renault rumoured to be the most fuel efficient of the current V8s? More ominous words for Red Bulls enemies...


June 22, 2013 7:08 PM

Ptolemy. if the turbo was geared to the crankshaft, it wouldn't be a turbo, it would be a supercharger!

it is linked to a generator, which could be directly beside turbo, or in merc case (I think) it is linked by a shaft to the other end of the engine


June 22, 2013 7:19 PM

No, the turbo is not geared to the crankshaft it's the MGU-K (kinetic) which is geared to the front of the crankshaft this MGU is either helping to rotate the crankshaft (acting as a motor) or it is being rotated by the crankshaft (acting as a generator) .
When it's acting as a motor it is triggered by the driver when he calls upon KERS power.
When it's acting as a generator it is triggered by the driver going on the brakes.
The MGU-H (heat) geared or not on or to the turbo shaft is either rotating (spooling up) the turbo shaft (acting as a motor) or it is being rotated by the turbo and so acting as a generator either charging the batteries or helping boost the MGU-K power to the crankshaft.
Turbo compounding (which does not gear a turbo to the crankshaft) is not permitted.


June 22, 2013 8:13 PM

sunny. some good views on f1.com. but one thing is puzzling me. why are the exhaust manifolds/collectors so large. bearing in mind how tight existing systems are, I wonder why the very wide boxes? if used, they would mean that a very wide body is needed low down at the rear.


June 22, 2013 9:35 PM

Richard, “the wide boxes” the intercooler/s will have to be in line with the side pots for maximum heat rejection (cooling effect).
Re “engine heat converted to steam to run a steam turbine” that would be called a combined cycle system, not feasible for F1 power unites but very much feasible and in use on big diesel installations in power generation (power stations) where the exhaust gasses heat is used to produce steam to run a turbine which in turn will run a generator.
Some more notes of interest, the ES (energy store/batteries) will be the only part of the power unit that won't be homologated, the power units consisting of engine ,turbine, compressor, MGUH, and MGUK will all be classified as a power unit and development frozen.


June 22, 2013 9:46 PM

Sorry to have left out that, the 2014 engine redline will probably be closer to 12000rpm because of the maximum fuel restriction.
The new V6 have a raised crankshaft 90mm above the reference plane, the V8 has been 58mm. The centre of gravity (engine) of the V8 lay at a point no higher than 165mm from the reference point, the V6 will be raised to 200mm. The overall weight (minimum) for the engine has been raised from 95kg to 145kg.


June 22, 2013 10:13 PM

sunny. I meant the exhaust shrouding, like the heat exchangers on your vw. is the intercooler not the radiator like square unit?

re max rpm. wasn't this raised to 15k?

re the seam recovery, that was a joke! yes, in my work at a generating station using turbines, I came across the heat recovery system.

by the way, did you know that rbr don't use kers batteries, they are using floor contained capacitors. ok, basically the same but far lower siting of weight.


June 22, 2013 11:09 PM

Richard, yes the V6 maximum RPM is 15k but as I said they will most probably use a redline of 12k.
Some time ago there were rumours that RBR were using a start only KERS.
Reports are RBR has been packaging their KERS batteries beside and inside the gearbox so as to use a shorter fuel tank, this brings the engine forward and so allowing the use of a longer and slimmer gearbox which is beneficial to aero.

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