- I-Vtech: I-VTEC (which stands for Variable Valve Timing and Lift Electronic Control) is an electronic and mechanical system in some Honda engines that allows the engine to effectively have multiple camshafts. As the engine moves into different rpm ranges, the engine’s computer can activate alternate lobes on the camshaft and change the cam’s timing. In this way, the performance of the engine improves & it gets the best features of low-speed and high-speed camshafts in the same engine.
- The Smart Hybrid Vehicle System: (SHVS) involves a large starter motor. This starter Motor functions as a normal starter motor while cranking the engine. During braking, the circuit is altered to make the same starter motor to act as a generator. The power losses during the braking are hence regenerated and stored in a High capacity battery. This power can later be used for auxiliary systems or to generate extra torque while accelerating. The extra torque delivery is through the same starter motor.
- M-Hawk: It is a 2.2 litre, straight 4 cylinder, diesel engine. It has dual overhead cams and 4 valves /cylinder. Power is boosted by a single stage Variable Geometry Turbocharger (VGT). The engine is rated at 120 hp for Scorpio and 140 hp for XUV500. It has a BOSCH common rail fuel injection system.
- K-Series– The K-Series engine is a series of engines built by Powertrain Ltd, a sister company of MG Rover. The engine was built in two forms: a straight-four cylinder, available with SOHC and DOHC, ranging from 1.1 litres to 1.8 litres.Maruti Automobile of India has been extensively using this technology for quite a long time now.
- Kappa Engines: Automobile engine Kappa is the lightest in its class among leading European and Japanese-made engines. First, the engine block is made from high-pressure die-cast aluminum which results in considerable weight savings Kappa puts out 77.8ps@6000rpm–very competitive within the European A-segment but peak torque is rated best-in-class at 12.0kgm per 4000rpm ensuring outstanding acceleration.
- Revotron Engines: The name Revotron was derived from two words, Revo which is part of revolution and Tron from ‘Tronel’ which according to Tata Motors is French for balance. Displacement is listed at 1,193cc with 90PS of peak power coming in at 5,000rpm and 140Nm maximum torque available from 1,750 to 3,500rpm. The turbo kicks in at 1,700rpm though there is barely any perceptible turbo lag and the power delivery feels linear throughout. It’s also one of the smoothest petrol Tata Motors has ever built and it is comparable to any other turbo petrol available globally in the same displacement category in terms of refinement and smoothness.
- Blue core Engines :Developed by Yamaha it is said by the company that this engine gives the bike superior acceleration to 100kmph as well as 14 per cent better economy than the older bikes which remains on sale and is being superseded but not replaced by the new variants Yamaha also claim, less vocally, a 29 per cent cut in CO2 emissions, 33 per cent lower HC+NOx and 20 per cent lower NOx from the new engine.
- DTSI: Digital Twin Spark ignition engine has two Spark plugs located at opposite ends of the combustion chamber and hence fast and efficient combustion is obtained.
The benefits of this efficient combustion process can be felt in terms of better fuel efficiency and lower emissions.The ignition system on the Twin spark is a digital system with static spark advance and no moving parts subject to wear.Bajaj Ruled the two wheeler market in India for almost a decade, thanks to this technology.
So these were my picks from some of the most efficient engines used quite extensively today.Which one do you rev up?