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Re: Renault V6 Power Unit
Posted: 07 Apr 2018, 19:07
by Pany
Is renault engine going soon to be the last engine in the f1 grid performance wise?
Re: Renault V6 Power Unit
Posted: 07 Apr 2018, 22:18
by roon
Some sort of rotary feature inline with the intake runners. (yellow circles) Throttle plates? Some say these aren't used in the current formula.
Also, I found the source of Renault's compressor inefficiency (green arrows).
Re: Renault V6 Power Unit
Posted: 07 Apr 2018, 22:38
by Big Tea
roon wrote: ↑07 Apr 2018, 22:18
Some sort of rotary feature inline with the intake runners. (yellow circles) Throttle plates? Some say these aren't used in the current formula.
Also, I found the source of Renault's compressor inefficiency (green arrows).
https://i.imgur.com/5udyUzc.jpg
Would they not be mount holes? or are you just being ironic?
Re: Renault V6 Power Unit
Posted: 07 Apr 2018, 22:39
by Big Tea
Big Tea wrote: ↑07 Apr 2018, 22:38
roon wrote: ↑07 Apr 2018, 22:18
Some sort of rotary feature inline with the intake runners. (yellow circles) Throttle plates? Some say these aren't used in the current formula.
Also, I found the source of Renault's compressor inefficiency (green arrows).
https://i.imgur.com/5udyUzc.jpg
Would they not be mount holes? or are you just being ironic?
Edit.
Sorry, I am slow today
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 01:15
by carisi2k
are those holes or stickers?
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 03:48
by ringo
Those holes are for tools to pass through probably.
They are also present on the mercedes air box. Maybe for vilm adjustment.
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 03:51
by PlatinumZealot
roon wrote: ↑07 Apr 2018, 22:18
Some sort of rotary feature inline with the intake runners. (yellow circles) Throttle plates? Some say these aren't used in the current formula.
Also, I found the source of Renault's compressor inefficiency (green arrows).
https://i.imgur.com/5udyUzc.jpg
I reckon the throttle plates are metal and bolted onto the head similar to the V8 engines.
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 08:59
by zac510
It's a joke, that the turbo'd air is escaping out the holes!
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 15:46
by PhillipM
It's a pivot, either for the throttle bodies or for the VLIM system - you can see the rose-jointed control linkages further back.
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 21:39
by godlameroso
Hydraulic VLIM?
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 21:57
by trinidefender
Doubt it, would guess electro-mechanical actuators.
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 22:03
by ctdrftna
Lower holes are the shafts for the throttle blades, and the upper holes are just access for the flange bolts in that area. they are not open to the inside of the plenum.
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 22:05
by godlameroso
trinidefender wrote: ↑08 Apr 2018, 21:57
Doubt it, would guess electro-mechanical actuators.
Electrically controlled, hydraulic operated, much faster than only solenoid driven. The weight penalty is almost negligible and the benefits of faster VLIM control I think would be worth it. But eh, not my pumpy lump.
Surprised no one talks about the shape of the ports.
Re: Renault V6 Power Unit
Posted: 08 Apr 2018, 22:52
by Tommy Cookers
what's solenoidal action got to do with it ?
I thought eg the (NA) throttle actuation was based on electric motor action
rotational or linear
proportional and precise
Re: Renault V6 Power Unit
Posted: 09 Apr 2018, 00:35
by trinidefender
godlameroso wrote: ↑08 Apr 2018, 22:05
trinidefender wrote: ↑08 Apr 2018, 21:57
Doubt it, would guess electro-mechanical actuators.
Electrically controlled, hydraulic operated, much faster than only solenoid driven. The weight penalty is almost negligible and the benefits of faster VLIM control I think would be worth it. But eh, not my pumpy lump.
Surprised no one talks about the shape of the ports.
Modern electric actuators can have quicker reaction times and be more precise than hydraulic ones.
Aircraft are moving away from hydraulic actuation to electric for this very reason. (As well as reliability).
The cons are more expensive and still generally not providing as a force, neither of which is a factor in this application in F1.
Also as TC said, they don't need to be solenoidal action isn't the only way.