Volvo Trucks - D13 Turbo Compound engine

Volvo Trucks' new turbo compounding, available on our D13 engines beginning mid-2017. Turbo compounding can provide dramatic savings through fuel efficiency improvements of up to 6.5%.
www.volvotrucks.us

[@LizardKing0851]

This is World War 2 aviation technology. There are aspects of this type of supercharging that increase boost without increase fuel consumption. To over simplify if you will, it functions similar to a water wheel. You benefit from the flow of the exhaust without causing back pressure. With a standard turbo charger you have back pressure between the exhaust valves and the turbo equal to or greater than the manifold pressure. Which also traps heat in the exhaust valves/head and turbo. It tough to wrap your head around. I just watched a video on the Douglas DC7 that was capable of 400 mph from the use of the Compound Supercharge Technology. The narrator said this technology has been asleep since the 50s. There are tons of fuel savings and horse power laying on the table if Caterpillar, Cummins and Detroit would revisit this technology. This video only describes one of the general methods of compounding. This is not what we think of in terms of compound turbos that Caterpillar Acert engines use.

[@mantatrip9319]

You are here after Greg's video?

[@judithwedge133]

​@@mantatrip9319---- We are 🙏

[@grey9803]

Sick, same lol

[@PKWeaver74]

Came here from a video about the DC7 and it's turbo compounding engine. Would be interesting to see this tech coupled to a battery hybrid electric motor in cars.

[@crackedemerald4930]

That's a neat little thing

[@royb642]

Gotta admit cool idea, ish" as long as the engineering is precise

[@teravolt6113]

Great, so it's basically a secondary axial free turbine, just like helicopter turboshaft engines (and the Chrysler turbine car engine too).

[@alexzander1839]

...and the Wright R-3350 TC aircraft engine.

[@bonkeydollocks1879]

Nothings new

[@wazza33racer]

@@alexzander1839 exactly............Power Recovery Turbine.

[@ependergrass]

Can this run behind a regular turbocharger!? *head explode*

[@luisyamasaki9866]

Excelente video

[@100pyatt]

#Volvo , Please do an eXceed Package Video 🙏

[@valentinpaun4570]

Ma poate ajuta cineva unde pot gasi o evacuare la turbina la un motor de 500 cai euro 3

[@100pyatt]

Did VOLVO abandon these videos???

[@royb642]

What if they use clutches & vibration dampers to regulate & smoothen the transfer, still it's very complicated, lot of load on the turbines

[@wazza33racer]

in the cutaway you can see the fluid drive, its situated as part of the first gear reduction set.

[@vargasdagama]

technology scania ????

[@mchertonok]

Detroit diesel had similar sistem on dd15 and many people hated it. Sure hope volvo does it better.

[@hunzolee]

Did Scania start using this technology on the 12-liter engine in 2007. Saab-Scania. Old technology come back?

[@jakublulek3261]

It was first used in 1940s by Napier and Rolls&Royce. It is very old technology.

[@dorianlaroche886]

Yes it come back and very good to save Diesel ⛽️

[@VARITHMS]

Will the connection keep the turbo "spooled" at idle or when the truck is coasting?

[@supertreme5559]

the turbo would be moving anyways lol. but there is a oil driven coupling it looks like. its not direct drive. and all turbos are spinning at idle

[@fadedsoul23]

@@supertreme5559 yea they all spin at idle, but they arent spooling boost. hes asking if they spool boost at idle because of this system

[@fadedsoul23]

am i dumb? why is it running off a geared system and exhaust gases? someone said they did something like this in WW2 but ive never seen this before, can someone explain what the gears do?

[@tomekk9205]

VOLVOOOOOOO💗

[@miquel440]

Are we getting this engine on the FH in Europe as well?

[@kristianhenningsen5374]

Volvo have tried this before. In Europa they made a version with basic in the D12c engine. From 2002 untill 2005 they sold this with 500hk. It was party a succes. A few of the engines vere really problem engines, and these again created a bad reputation about this turbocompound tecknology. But the truth is that the majority of the engines worked superb. Wery economical with the fuel and ran Wery Long without heavy maintenance. And wery good driveabillity. Powerfull and wide tourque range

[@miquel440]

Kristian Henningsen I know..i had a 500 turbocompound.. but after the introduction of the FH4 Volvo did talk sbout the I torque engines..that.s why i asked.

[@kristianhenningsen5374]

I think the Itourque disapeared with the introduction of the dual clutch gearbox

[@user-js7gj3vf6s]

@@kristianhenningsen5374 D12D500

[@henryblanton6992]

So it’s a Geared Scavenger Turbo with a Viscous Coupling. Should last as long (maybe longer) as the Service Life of the Engine.

[@davidsica8996]

What happens during startup, when that massive gear reduction is reversed? What happens in the setup during periods of inadequate exhaust output- say downhill? What kind of stresses does it produce? Is there a way that the system can be disengaged?

[@CrazyForCooCooPuffs]

Theres a fluid coupling, its the donut shaped thing.

[@deanerichardson8930]

Interesting, did you all go back and research the turbine shaft problems that the US Army Air Corp had with turbine shafts in the Wright 3350 turbo-compound radial engine of the late 1940's up to the 1970's? They never did totally cure the breakage problems.

[@michaelmurray7199]

It’s not the first time that the automotive industry took inspiration from the aeronautical industry either.

[@someotherdude]

Mazda is bringing a rotary range extender to market in 2022 and will even sell them to Toyota. The rotary is not dead, it's an excellent choice for a range extender.

[@fadedsoul23]

true but if they put it into a sports car, it better not be as a generator

[@akramKHAN-qr3bi]

Good

[@lubomirchlebnican8636]

👍👍👍👍

[@celtisafricana4984]

Isn't it amazing how old technology get rehashed as new technology?

[@user-xh2so8ef3o]

I don't think it's being rehashed as new technology. Nobody's under any misapprehensions about the pedigree of this concept

[@celtisafricana4984]

@@user-xh2so8ef3o power recovery turbines were used on aircraft engines at least as far back as the WW2 era- as has been stated by a number of people's comments. To present this as a new concept is misleading to say the least. Renaming it and adding one or two modern innovations does not make this "new"

[@SeraphoftheRoundTable]

Who else came here from Greg's video?

[@alvarogeorgenobregeorge69]

No SCANIA HAS SINCE 1989 on DS11.0 litler engine .

[@muhammadzakifiqri9752]

Complex

[@fayefusco5233]

01:14 0:55 0:49

[@qqeduardo]

Okay

[@novcha142]

It's very complex engine. Very difficult to diagnostic and repair.

[@AlexD-fq5zm]

I see some extremely expensive repairs

[@UsherLinder]

You might think so, but history proves otherwise. My dad worked on another turbocompounded engine, the Wright R-3350, and the turbocompounding system was extremely reliable. All it had to do was spin. The unreliability stemmed from the reciprocating part of the engine. The valves would would break, escape the piston through the exhaust, hit the turbocompounders, and break them.

[@MrMrsirr]

Yeah there's actually nothing terribly complicated going on here. "expensive repairs" is just a go-to for armchair engineers.

[@thisiskingone]

e=mc2 using turbo power to drive flywheel.so this is poor design

[@hebvdvdbdb5108]

Scania first

[@Shoptalk4307]

All the extra junk, weight, and expense....for a whopping tiny 50 hp.

[@MrSunrise-]

6.5% improved fuel mileage X 500,000 equals money in your pocket.

[@magdalenafasting6903]

Not a new idea at all. Google "Napier Nomad"

[@krystiansieminski363]

Extra 50 hp, hm, take that EGR out, take that valve's on off- out, take that exhaust treatment out, and I get that 50 HP or more for nothing....ha ha. TH

[@davidsica8996]

You may get 50Hp for nothing, but the rest of us breathing your carcinogenic exhaust will pay

[@householdemail1305]

Crank driven turbos.?so cool.

[@leciahashimoto2093]

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