Fiat TwinAir engine

TwinAir engine
Overview
Manufacturer Fiat Powertrain Technologies
Also called SGE (Small Gasoline Engine)
Production 2010–present
Combustion chamber
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)
Cylinder block alloy Cast iron
Cylinder head alloy Aluminium
Valvetrain 8-valve, chain-driven single overhead camshaft, MultiAir
Compression ratio 11.2:1 (naturally aspirated)
10.0:1 (turbocharged)
Combustion
Turbocharger Naturally aspirated
Single turbocharger
Fuel system Fuel injection
Fuel type Gasoline
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 ft·lb) at 3,500 rpm (naturally aspirated)
140 N·m (100 ft·lb) at 2,500 rpm (bifuel turbo)
145 N·m (107 ft·lb) at 2,000 rpm (turbo)
Chronology
Predecessor FIRE engine

Fiat's TwinAir engine is an inline-two engine designed by Fiat Powertrain Technologies as part of its Small Gasoline Engine (SGE) family employing Fiat’s Multiair hydraulically-actuated variable valve timing (VVT) 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 875cc TwinAir won Best Engine Under 1 Liter, 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, turbocharged, CNG-hydrogen mix and gasoline bifuel unit.

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

Applications

Awards

References

  1. "Fiat 875cc TwinAir". ukipme.com. Retrieved 2012-01-03.
  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.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.