Hyundai U engine

Hyundai U engine
Overview
ManufacturerHyundai Motor Group
Production2004–present
Layout
ConfigurationStraight-3 or Straight-4
Displacement1.1 L (1,120 cc)
1.2 L (1,186 cc)
1.4 L (1,396 cc)
1.5 L (1,493 cc)
1.6 L (1,582 cc)
1.7 L (1,685 cc)
Cylinder bore75 mm (2.95 in)
77.0 mm (3.03 in)
77.2 mm (3.04 in)
Piston stroke79 mm (3.11 in)
84.5 mm (3.33 in)
85.8 mm (3.38 in)
90 mm (3.54 in)
Cylinder block materialCast iron
Cylinder head materialAluminum
ValvetrainDOHC 4 valves x cyl.
Compression ratio17.0:1, 17.3:1
Combustion
TurbochargerFixed or variable geometry
Fuel systemCommon rail direct injection
ManagementDelphi or Bosch
Fuel typeDiesel
Cooling systemWater-cooled
Output
Power output71–141 PS (52–104 kW; 70–139 hp)
Torque output15.6–34.7 kg⋅m (153–340 N⋅m; 113–251 lbf⋅ft)
Chronology
PredecessorHyundai D engine
SuccessorSmartstream D1.5/D1.6

The Hyundai U engine is a series of three or four-cylinder diesel engines made for automotive applications by the Hyundai Kia Automotive Group. The U series of engines includes the smallest automotive diesel engines produced by Hyundai.[1]

  1. ^ "Hyundai Introduces New R-Diesel Engine". Auto Report. 5 November 2008. Archived from the original on 2011-12-20. Retrieved 2012-07-09. The R-Engine brings Hyundai's diesel engine family fully up-to-date as it joins the U-Engine (1.1-liter, 1.4-liter and 1.6-liter), the A-Engine (2.5-liter) and S-Engine (3.0-liter V6).