Supplier Spotlight

Video Exclusives

Jaguar XE SV Project 8 laps Nürburgring in 7 min 21 sec

gtr

Hand-assembled by Special Vehicle Operations and fitted with a 600ps 5-liter supercharged V8, Jaguar’s production-intent prototype has broken the lap record for a four-door sedan by 11 seconds.


Chevrolet expands performance line-up

gtr

Chevrolet details its ZR2 concept and race development truck as the company continues to redefine the segment


Click here/on image to watch video

Which technological development has impressed you most this year? 

Web Exclusives

« back to listing

BMW reveals innovative water injection technology

We've spoken to BMW to get exclusive details of the innovative water injection system it will showcase at IAA 2015

 

We spoke to BMW ahead of the Frankfurt show, where the Munich-based manufacturer’s engineers will show off innovative updates to the 3-liter turbocharged six-cylinder in-line engine that won its category in this year’s International Engine of the Year awards.

The M4 GTS concept car features an innovative water injection system that brings an increase in power output and torque and a reduction in fuel consumption.

Why is BMW pursuing this innovation?
BMW thinks it’s on to a winner with the technology, cooling cylinders from the inside by injecting water directly into the combustion chambers and getting higher outputs from smaller engines through higher turbo boost levels.

According to BMW engineers, the new feature reduces internal engine temperatures from 400-500°C to around 330°C, with an improvement of 3-8% in fuel consumption. The water comes from a tank in the engine bay that drivers can fill up with distilled water, but the car will also use water from the air conditioning that would otherwise be dumped.

Is it just a BMW project?
BMW has called in some help for the initiative: German Tier 1 supplier Bosch has supplied its parts for the new system. It’s a demanding brief – the new setup requires accurate metering and delivery of precise volumes of water into the cylinder as well as petrol.

What’s the long-term plan for the technology?
The German manufacturer might be showing off the water cooling system in a hot coupe, but it plans to introduce the new water cooling system in all of its turbocharged petrol engines, following up the production version of the M4 coupe with a three-cylinder engine in the 1-Series, which is currently undergoing final prototype testing. BMW says water injection will soon be as ubiquitous as variable valve timing.

What early test results is BMW getting from the 1-Series prototype?
The 1.5-liter three-cylinder engine benefits from three multi-point injectors that supply water directly into each combustion chamber, as well as indirectly into the inlet manifold. BMW tells us their testing has shown a power increase from 204ps to 218ps and a rise in torque peak from 280Nm to 320Nm. 

August 19, 2015

 

19 August 2015

RECEIVE THE
LATEST NEWS


Your email address:





Read Latest Issue
International Engine of the Year Awards
Read Latest Issue
Read Latest Issue

Web Exclusive Articles

Volkswagen 2018 Polo GTI receives engine upgrade
Fitted with a 2.0-liter four-cylinder unit and producing 200ps, the German OEM’s 2018 Polo GTI shares design traits with the brand’s newest GTI R5 competition racer  
Read Now

Sakor Technologies discuss the importance of NVH testing in engine development
With OEMs continuing to improve NVH, Sakor outlines its newest testing innovation and the importance of accelerated belt aging stands in vehicle development
Read Now

Engines on test: Hyundai Ioniq Plug-in Hybrid
Fitted with a 1.6-liter Atkinson-cycle GDi Kappa engine and 44.5kW electric motor, Hyundai’s PHEV is the company’s first foray into automotive electrification – but how does the powertrain measure up?
Read Now


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the engine technology industry. Want to see your company included? Contact aboobaker.tayub@ukimediaevents.com for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the engine technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to d.slavnich@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email aboobaker.tayub@ukimediaevents.com