Indigenous Diesel Engine Developments for Armoured Vehicles : Update & Discussions

marich01

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Aug 17, 2022
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Germany did not convey, its the company who did? Issue would have come had the German Govt denied export license. But this is a company's decision. The powerpack related work which is probably handled by CVRDE, terms had the 1400hp MTU engines related work alongside in the schedule for assistance in the 1500hp powerpack development work. I guess priority is now shifting. below estimate in the job ad from December 2023.

I would have shelved the MTU engines plan myself, but perhaps there are certain issues, like need to redesign some LRU or similar major/minor niggles.

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Defence Secretary Shri Giridhar Aramane presided over the maiden test-firing of India’s first indigenously-made 1500 Horsepower (HP) engine for Main Battle Tanks at BEML’s Engine division in Mysuru complex on March 20, 2024. The achievement heralds a new era in the country’s defence capabilities, showcasing the technological prowess and commitment to self-reliance in defence technologies.

The 1500 HP engine represents a paradigm shift in military propulsion systems, possessing cutting-edge features such as high power-to-weight ratio, operability in extreme conditions including high altitudes, sub-zero temperatures, and desert environments. Equipped with advanced technologies, the engine stands on par with the most advanced engines globally.

Inaugurating the Test Cell, the Defence Secretary described the achievement as a transformative moment which will enhance the capabilities of the Armed Forces. CMD of BEML Shri Shantanu Roy stated that the accomplishment solidifies BEML's position as a key contributor to defence production in the country, underscoring its commitment to serving the nation's needs in this critical sector.

The first test-firing of the 1500 HP engine signifies the completion of Generation One, focusing on technology stabilisation.

Generation Two will see BEML producing engines for various trials at Combat Vehicles Research and Development Establishment, a DRDO laboratory, and their integration into actual vehicles for user testing.


The project is slated for completion by mid-2025. The project, initiated in August 2020, has been meticulously structured into five major milestones, ensuring timely completion and adherence to quality standards.

The Defence Secretary also inaugurated the ‘Wall of Fame’ to recognise the extraordinary efforts of the BEML team. It symbolises their contribution towards advancing the defence capabilities of the country and achieving milestones in indigenous technological innovation. Senior civil and military officers of the Ministry of Defence; industry partners and officials of BEML Ltd were present on the occasion.

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Development of 600 HP Engine under Self Reliant India (Atmanirbhar Bharat)

Posted On: 15 DEC 2021 10:48PM by PIB Chennai

Combat Vehicles Research & Development Establishment (CVRDE), a premier establishment of DRDO is involved in the design and development of Battle tanks for Indian Army. CVRDE has taken initiative to develop indigenous engine to power futuristic combat vehicles. In this regard CVRDE designed 600 hp engine ab-initio, which is compact, efficient, light weight due to incorporation of advanced technologies. The engine is comparable to contemporary battle tank engines. M/s Ashok Leyland, Chennai, a leading automotive industry is identified as Development cum Production Partner by CVRDE for manufacturing of 600 hp engine. M/s.c Ashok Leyland had applied modern & innovative methods and completed manufacturing of engine in a record time despite total lockdown due to COVID-19.

Shri Pravin K Mehta, Distinguished Scientist and Director General (ACE), inaugurated the testing of CVRDE-DRDO Developed 600 hp engine in the presence of Shri V. Balamurugan Director, CVRDE, other directors of DRDO ACE cluster and Dr. N Saravanan, CTO, Shri R Rajesh, Head- Defence & Shri Krishnan sadagopan, Head-Engine Development of Ashok Leyland on 15th Dec 2021 at Engine Development Centre, Ashok Leyland, Vellivoyalchavadi, Chennai. This inauguration also marks a major milestone in iconic week under Azadi Ka Amrut Mahotsav.

Successful induction of 600 hp engine in Indian Army through the indigenous efforts of DRDO and Indian industry will result in development of series of engines for other battle tanks.This will lead to self-reliance in Tank Engine technology, which in turn result in plethora of advantages viz., Spin off technology for other applications, savings in FE, export of tank engines and generation of employment in Indian industry. according to the press release issued by CVRDE.

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BEML Establishes Engine Design & Development Centre at Mysuru Complex


BEML has initiated the process of Design, Development and Supply of 1500 HP engines to the Combat Vehicles Research and Development Establishment, DRDO. The engine will be used on the Future Main Battle Tank being developed by CVRDE and is designed to work in extreme environmental conditions.

In this regard, BEML has inaugurated the Engine Design & Development Centre at their Mysore Complex today. The Centre will support the development of a 1500 hp engine for futuristic tanks along with other engines.


CMD BEML inagurated Design and Development Centre at Mysuru Complex

About BEML Mysuru Complex​

BEML Limited, the trusted name for over 52 years in the mining and construction industry, channels its expertise into the priority sector of energy with the manufacture of fuel-efficient diesel engines. Established in the year 1991 in Mysuru, with technical know-how from Komatsu Japan, BEML diesel engines are built for maximum reliability, high performance and lasting value. These engines are backed by the facility of application engineering, multi-location sales & service network and rehabilitation facility.

Engine Division manufactures heavy duty Diesel Engines for application on a wide variety of Earth Moving, Mining and Construction Machinery and Defence Equipment. Apart from these, the engines are also offered for other industrial applications as well as diesel generator sets. BEML Engines are used on Bull Dozers, Dump Trucks, Motor Graders, Wheel Loaders, Pipe Layers, Hydraulic Excavators, Loading Shovels, C Crane, Aircraft Towing Tractors, Backhoe Loaders, Water Sprinklers and Heavy Duty Trucks. These Engines are capable of operations over a wide terrain right from sea level conditions to high altitude (19,000ft) as well as under sub-zero condition
 
Tender is our for testing of 600hp engine.

CVRDE has developed a 600 HP engine which was realised with the help of Ashok Leyland (Chennai). Now this engine is optimised after initial testing and Generation two engine is now ready for further testing. Six gen 2 engines will be tested.
  1. Engine Type: 4-stroke DI Diesel Engine
  2. Number of Cylinders/Configuration: V8 with 90 deg V angle & Cross plane crankshaft
  3. Rated Power: 600 hp
  4. Rated Speed: 3200 rpm
  5. Peak Torque: 1505 Nm
  6. Peak Torque Speed: 1980 rpm
  7. Total Displacement: 9.145 litre
  8. Fuel Injection System: Common Rail
  9. Charging System: Single stage TC with external waste gate.
Thanks to @marich01
 
We already have copied and uprated the V46 to 1000hp right?
Yes. That engine was meant for the T-72 CIA variant. Kunal Biswas took a video of this engine:



The V46-6 engine in the video looks nothing like the engine shown in the photos above. I've looked at BMP engines, T-90's engines etc., the engine shown in the photo doesn't look like anything Engine factory Avadi makes.

So, is this actually their own design? PSUs are doing serious R&D work? Difficult to believe.

When that uprated V46-6 engine was showcased, it was mentioned this new uprated engine will be mated with the same old transmission. That transmission works fine in forward gear but not so much in reverse. We have seen that same issue in the Russia-Ukraine conflict.

I figured since they uprated the engine they might as well make a new transmission. Have they actually made a new engine?

The uprated V46-6 retains the connected cylinder head usually seen on Soviet/Russian diesel engines. While this engine has a segmented cylinder head reminiscent of the CVRDE's 700 hp engine:
1726682037311.png

1726682055784.png

This is also a V8 engine unlike the MTU, which also has segmented cylinder heads, but is a V10 engine. Could this be an uprated variant of the CVRDE's 700 hp engine that Engine factory Avadi is prototyping & testing?

It makes sense for CVRDE to develop this. They are developing a 600-700 hp engine for AFV/IFV & light tanks etc. They are also developing a 1500 hp engine for main battle tanks. If they can make a 1000 hp engine for medium tanks (like T-72) their portfolio is complete.
 
Tender is our for testing of 600hp engine.

CVRDE has developed a 600 HP engine which was realised with the help of Ashok Leyland (Chennai). Now this engine is optimised after initial testing and Generation two engine is now ready for further testing. Six gen 2 engines will be tested.
  1. Engine Type: 4-stroke DI Diesel Engine
  2. Number of Cylinders/Configuration: V8 with 90 deg V angle & Cross plane crankshaft
  3. Rated Power: 600 hp
  4. Rated Speed: 3200 rpm
  5. Peak Torque: 1505 Nm
  6. Peak Torque Speed: 1980 rpm
  7. Total Displacement: 9.145 litre
  8. Fuel Injection System: Common Rail
  9. Charging System: Single stage TC with external waste gate.
Thanks to @marich01

Now DRDO+AL want to test the 600 hp engine with WhAP. Old photo:
GbRDoiGaIAAB03E.jpg
 
I figured since they uprated the engine they might as well make a new transmission. Have they actually made a new engine?
From what I understand it's easier to make an engine of this kind than it is to develop the entire power train as in the transmission for this kind of an engine.

RoK which has successfully developed its own line of tanks & in collaboration with Germany developed its own indigenous engines for them following their favoured SOP have been struggling to develop their own transmission for the past 1 to 1.5 decades . They're still at it while deploying German transmission for their tanks .

And now they've signed an agreement with Turkey to supply them their engines & act as "consultants" for the Turks helping them realise their "indigenous" power train while they've yet to successfully develop one themselves. Sounds like the Turkish tank program will see a lot of fun going ahead.
 
From what I understand it's easier to make an engine of this kind than it is to develop the entire power train as in the transmission for this kind of an engine.
That would be true for cycloidal transmissions. Both epicycloid & hypocycloid. But the old V46 uses a manual transmission. Also, it is difficult to believe that a PSU would be doing R&D into making a diesel engine.
 
That would be true for cycloidal transmissions. Both epicycloid & hypocycloid. But the old V46 uses a manual transmission.
I almost forgot these tanks use manual transmission. Thanks for jogging my memory on cycloidal transmission . Haven't come across it since I completed my engineering.
Also, it is difficult to believe that a PSU would be doing R&D into making a diesel engine.
Well then how or who do you suppose did the R&D ?
 
Well then how or who do you suppose did the R&D ?
It is just a hunch for now. I think it is an uprated derivative of CVRDE's 600-700 hp engine design. That's what I meant here:
The uprated V46-6 retains the connected cylinder head usually seen on Soviet/Russian diesel engines. While this engine has a segmented cylinder head reminiscent of the CVRDE's 700 hp engine:
1726682037311.png

1726682055784.png

This is also a V8 engine unlike the MTU, which also has segmented cylinder heads, but is a V10 engine. Could this be an uprated variant of the CVRDE's 700 hp engine that Engine factory Avadi is prototyping & testing?

It makes sense for CVRDE to develop this. They are developing a 600-700 hp engine for AFV/IFV & light tanks etc. They are also developing a 1500 hp engine for main battle tanks. If they can make a 1000 hp engine for medium tanks (like T-72) their portfolio is complete.