PLA Next Generation Main Battle Tank

There are some possible scheme where the V6 would make sense. That is if the Tank was using an electric drive system and you had duel engines. Then the smaller output wouldn’t matter as much because you would have a second power pack.

I noticed 60kw/l from the HPD6V is more than the Ukrainian engines. The 6TD-1R's output is approximately only 45kw/l!

t2contra said:

Most probably, the Chinese engine's output is not inclusive of the augmented power of a supercharger or a turbocharger, unlike the Ukrainian ones.

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Does that mean that the actual powers of Chinese engines are higher than the values? Or does it mean that in reality, Chinese engines don't use turbochargers? I'm a bit confused, mind explaining please? Thanks

RichardGao said:

Does that mean that the actual powers of Chinese engines are higher than the values? Or does it mean that in reality, Chinese engines don't use turbochargers? I'm a bit confused, mind explaining please? Thanks

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For the same engine size, yes. So, if the Chinese engine were scaled up to the size of the Ukrainian engine at 16.3L, the power would be 978kw or 1311hp. That's the potential. Most likely, the Chinese engines use turbo or super chargers as well. Otherwise, I see no way the gap could be so big.

t2contra said:

For the same engine size, yes. So, if the Chinese engine were scaled up to the size of the Ukrainian engine at 16.3L, the power would be 978kw or 1311hp. That's the potential. Most likely, the Chinese engines use turbo or super chargers as well. Otherwise, I see no way the gap could be so big.

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Indeed Chinese engines use superchargers. The 150B engine (1200hp) used for the type 99 was modified by improving superchargers and other mechanisms to reach a level of 1500hp, then used on the 99A.
However, I didn't really understand this:

t2contra said:

the Chinese engine's output is not inclusive of the augmented power of a supercharger or a turbocharger

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Does that mean that the bonus caused by superchargers are not included in the final value of Chinese engine tests, or does it mean something else? (Please forgive me I know practically nothing about engines

RichardGao said:

Indeed Chinese engines use superchargers. The 150B engine (1200hp) used for the type 99 was modified by improving superchargers and other mechanisms to reach a level of 1500hp, then used on the 99A.
However, I didn't really understand this:

Does that mean that the bonus caused by superchargers are not included in the final value of Chinese engine tests, or does it mean something else? (Please forgive me I know practically nothing about engines

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Includes. It is still a super achievement for China as that sort of feat are usually the reserve of the Germans.

RichardGao said:

If anyone requires further info or can help explain this, you can ask me for the original document. Unfortunately i can't give useful advice or opinions because I know very little about power systems.

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If you post the full website, I'd be happy to translate.

jobjed said:

If you post the full website, I'd be happy to translate.

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The website is posted above, however seems unavailable. I can post the document here:

RichardGao said:

The website is posted above, however seems unavailable. I can post the document here:

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High energy-density V6 diesel engine.

High energy-density diesel engines are one of the ten very high-tech fields of global industry. Its successful development has facilitated the development of next-generation AFVs around the world, and has become an export-embargoed technology of industrialised countries. To ensure the continued smooth development of our own AFVs, 70 Institute developed the HPD6V prototype during the Twelfth Five-Year Plan. For this program, 70 Institute developed a fully digital design platform and integrated management platform, achieved breakthroughs in multiple core technologies, built the HPD6V's technology demonstrator, subjected it to tests, achieved the intended performance of 60kW/L, and verified a basic level of reliability.

The HPD6V has completed its role as a technology demonstrator and validator and is among the cutting edge by international standards. Once refined into a market product, the HPD6V can be marketed and produced for the rapidly-growing >300kW segment.

Key high-tech indicators:

• Common-rail injection
• Rich AFR
• Two-stage adjustable intercooled supercharger
• Integrated electronic control system
• Single pump dual-loop cooling system
• Integrated crankcase

Key high-tech capabilities:

• Common-rail injection
• Rich AFR and high-density combustion integration
• Multi-mode adjustable two-stage supercharging
• High-accuracy and precision electronic control and calibration
• Euro 4 diesel emissions standard

TK3600 said:

That seems too little for a tank, 450kw.

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That's a six-cylinder engine. 450kw from six cylinders of unknown displacement is in the right neighborhood, although we could use the claimed 60kw/L to do the rough math on total displacement, but we don't know how that power is rated (at what RPM). The MBT variant of the engine is almost certainly going to have 12 cylinders and uprated for military use. So what's the problem exactly?