SubscribeCummins range of ISBe & ISLe Euro 4 engines for military use are shown at DVD 2006 (stand no: OR25).
Power-matched for the latest generation of lighter, faster and more powerful armoured fighting vehicles (AFVs), the 6.7 litre ISBe and 9 litre ISLe offer ideal power solutions for the 300 & 450 bhp power nodes. They are light and highly compact, yet with the all the inherent strength, power density and torque output required for military service.
The earlier Euro 3 products continue to be available with qualities which have already attracted the interest of leading AFV manufacturers such as BAE Systems Hägglunds with BvS10, MOWAG with the Duro family and Steyr-Daimler-Puch with the Pandur II. Cummins latest clean combustion technology also enhances the stealth capabilities of AFVs. Lower engine noise reduces the acoustic signature and visible smoke emissions are virtually eliminated to aid concealment. Major reduction of particulate and other invisible exhaust emissions also reduces the thermal imaging signature to help avoid detection.
The ISBe and ISLe engines have evolved from the highly-regarded Euro 3 predecessors, retaining the fundamental durability of the base engine design while incorporating state-of-the-art technology with high-pressure common rail (HPCR) fuel systems, 24-valve configuration and INTERACT advanced electronics. The new engines are far more capable without increasing the overall envelope. Maximum power of 300 bhp for the ISBe takes this engine right into the light 6x6 AFV market whilst ISLe's 350 & 450 bhp ratings cover the medium 6x6 and 8x8 markets.
Although the top ratings already offer an outstanding power density of over 0.5hp per kg, the INTERACT management system enables the engine to be programmed with an optional combat 'power boost'. At the touch of a button, smart electronics can instantly up-rate power and torque to that of a larger engine. For normal operations the engine retains a Euro 3 or 4 low-emission profile, but for limited periods such as high-intensity training, emergency or combat situations, the added 'power boost' can make crucial difference to mission success and survivability.
INTERACT electronics also offer a further performance-enhancing feature. The system can reach from beyond the engine to fully integrate with other electronically controlled systems within the vehicle powertrain - with the engine responding exactly to adjustments in torque or speed for gear changing or wheel spin correction.
Both engine families incorporate Cummins in-house developed HPCR fuel system, ideally matched to the engine configuration. Cummins utilises the 'stored pressure' common-rail principle to deliver high injection pressure independently of engine speed. David Moore, General Manager of Cummins Defence business says, "One of the key benefits to military equipment users of high pressure common rail technology is an increase in torque of up to 20 per cent, at both low and high engine speeds. This enables improved vehicle acceleration for faster and enhanced hill-climbing ability - all without compromising fuel-efficiency."
The ISLe offers enhanced features such as articulated pistons, roller cam followers, viscous damper and engine brake option to add to the engine's heavy-duty credentials. A strengthened cylinder block accommodates a longer piston stroke, increasing swept volume to 9 litres. Peak torque is increased to a class leading 1550 Nm @ 1400 rpm.
Cummins Inc. is the world's largest independent manufacturer of diesel engines, and is a major supplier to the UK MoD, the US military and many other defence forces around the world. With over 28,000 employees, Cummins reported net income of $550 million on sales of $9.9 billion in 2005.
A substantial manufacturing presence in Europe includes the mid-range engine plant at Darlington UK and the high horsepower engine plant at Daventry, UK. Wherever they operate, Cummins engines are backed by the largest international parts and service network of any engine manufacturer, with over 5,000 outlets.
Millbrook, UK (June, 28 2006)
