Fiat TwinAir engine

TwinAir engine
TwinAir engine
Overview
Manufacturer	Fiat Powertrain Technologies
Also called	SGE (Small Gasoline Engine)
Production	2010–present
Layout
Configuration	Straight-two
Displacement	1.0 L (964 cc) (naturally aspirated); 0.9 L (875 cc) (turbocharged)
Cylinder bore	83.5 mm (3.29 in) (naturally aspirated); 80.5 mm (3.17 in) (turbocharged)
Piston stroke	88 mm (3.5 in) (naturally aspirated); 86 mm (3.4 in) (turbocharged)
Block material	Cast iron
Head material	Aluminium
Valvetrain	8-valve, chain-driven SOHC, MultiAir
Compression ratio	11.2:1 (naturally aspirated); 10.0:1 (turbocharged)
Combustion
Turbocharger	Single (in some versions)
Fuel system	Indirect injection
Fuel type	Gasoline/CNG, bifuel
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	60 PS (44 kW) (naturally aspirated); 80 PS (59 kW) (bifuel turbo) ; 85 PS (63 kW) or 105 PS (77 kW) (turbo)
Specific power	62 PS/L (TwinAir 60); 97 PS/L (TwinAir 85); 120 PS/L (TwinAir 105)
Torque output	88 N⋅m (65 lb⋅ft) at 3,500 rpm (naturally aspirated) ; 140 N⋅m (103 lb⋅ft) at 2,500 rpm (bifuel turbo) ; 145 N⋅m (107 lb⋅ft) at 2,000 rpm (turbo)
Chronology
Predecessor	FIRE engine
Successor	Fiat Global Small Engine

Fiat's TwinAir engine is an Straight-twin engine designed by Fiat Powertrain Technologies as part of its Small Gasoline Engine (SGE) family — employing Fiat’s MultiAir hydraulically actuated variable valve timing and lift technology.

Offered in a variety of FCA vehicles in turbocharged and naturally aspirated variants, the engine is noted for its reduced size, weight, fuel consumption and CO₂ emissions.

In the 2011 International Engine of the Year awards, the 875 cc (53.4 cu in) TwinAir won Best Engine Under 1 Litre, Best New Engine, Best Green Engine and International Engine of the Year. [1] Dean Slavnich, editor of Engine Technology International and co-chairman of the International Engine of the Year Awards, called the TwinAir one of the "all-time great engines.”[2]

Development and launch

Fiat Panda Aria at IAA 2007

Fiat's TwinAir debuted at Internationale Automobil-Ausstellung 2007 in the Fiat Panda Aria concept car.[3] as an 80 PS (59 kW), turbocharged, CNG-hydrogen mix and gasoline bifuel unit.

The production TwinAir engine was launched at the 2010 Geneva Motor Show in 85 PS (63 kW), turbocharged gasoline form and became available later in 2010 in the Fiat 500.[4]

Later, it was launched also in other FCA vehicles such as the 2012 Punto. The naturally aspirated 1.0 L 60 PS (44 kW) version became available on the 2012 Fiat Panda and the 500 in select markets, and so two other turbocharged 0.9 L variants: the 80 PS bi-fuel CNG/petrol unit (on Panda, 500L and Ypsilon) and the 105 PS unit (on MiTo, Punto, 500L and 500).

Applications

Awards

Technobest 2010[5]
Die Besten Autos 2011:[6]
- Paul Pietsch Prize
International Engine of the Year 2011:[7]
- International Engine of the Year
- Sub 1-litre class
- Best New Engine
- Best Green Engine
International Engine of the Year 2013:
- Best Green Engine (TwinAir CNG bifuel)

gollark: Also that since current "AI" approaches seem to work by just throwing data and masses of computing time at the problem, the barrier to entry will be higher than with a simpler solution.

gollark: A worrying thing about having self-driving cars have piles of onboard "AI" and processing is that that will probably make them more vulnerable to exciting security problems.

gollark: In the UK we have nationalized healthcare and it... mostly works? It does burn a ridiculous amount of money, though.

gollark: Touchscreen keyboards always do that. Shame there are so few phones with hardware keyboards.

gollark: But you're probably not a bot, I guess. Unless we're all secretly bots.

References

"Fiat 875cc TwinAir". ukipme.com. Archived from the original on 2013-02-05. Retrieved 2012-01-03.
"Fiat's 0.9-Liter TwinAir Scoops the "International Engine of the Year 2011" Award". Carscoops. May 18, 2011.
Borgomeo, Vincenzo (3 September 2007). "La Fiat Panda "va ad aria". Provocante concept car". la Repubblica (in Italian). Retrieved 5 September 2014.
"Geneva motor show 2010: Fiat reveals 2cyl Twin-Air engine". Autocar. 2 March 2010. Retrieved 5 September 2014.
"De Fiat Twinair wint de Technobest 2010 prijs". Auto Edizione (in Dutch). 14 September 2010. Retrieved 6 December 2014.
"TwinAir technology wins "Paul Pietsch" prize in "Die Besten Autos 2011" competition". Fiatpress. 28 January 2011. Retrieved 5 September 2014.
"Triumph by Fiat and Ferrari at the "International Engine of the Year Awards"". Fiatpress. 18 May 2011. Retrieved 5 September 2014.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[ukipme.com-1] "Fiat 875cc TwinAir". ukipme.com. Archived from the original on 2013-02-05. Retrieved 2012-01-03.

[TA1-2] "Fiat's 0.9-Liter TwinAir Scoops the "International Engine of the Year 2011" Award". Carscoops. May 18, 2011.

[3] Borgomeo, Vincenzo (3 September 2007). "La Fiat Panda "va ad aria". Provocante concept car". la Repubblica (in Italian). Retrieved 5 September 2014.

[4] "Geneva motor show 2010: Fiat reveals 2cyl Twin-Air engine". Autocar. 2 March 2010. Retrieved 5 September 2014.

[5] "De Fiat Twinair wint de Technobest 2010 prijs". Auto Edizione (in Dutch). 14 September 2010. Retrieved 6 December 2014.

[6] "TwinAir technology wins "Paul Pietsch" prize in "Die Besten Autos 2011" competition". Fiatpress. 28 January 2011. Retrieved 5 September 2014.

[7] "Triumph by Fiat and Ferrari at the "International Engine of the Year Awards"". Fiatpress. 18 May 2011. Retrieved 5 September 2014.