Nissan KR engine

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Nissan KR engine
Overview
ManufacturerNissan
Production2018–present
Layout
Configuration
  • I3 (KR15DDT)
  • I4 (KR20DDET)
Displacement
  • 1,497 cc (1.5 L; 91.4 cu in) (KR15DDT)
  • 1,997 cc (2.0 L; 121.9 cu in) (KR20DDET)
Cylinder bore84 mm (3.31 in) (permanent)
Piston stroke
  • 90.1 mm (3.55 in) (8.0:1 compression)
  • 88.9 mm (3.50 in) (14.0:1 compression)
Block materialAluminum alloy
Head materialAluminum alloy
ValvetrainDOHC 4 valves per cylinder with VVT
Compression ratio8.0:1~14.0:1
Combustion
TurbochargerSingle
Fuel system
  • Direct-injection (GDI) (KR15DDT)
  • Combined GDI and multi-point indirect injection (KR20DDET)
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output201 hp (204 PS; 150 kW) (KR15DDT) 248–268 hp (251–272 PS; 185–200 kW) at 5,600 rpm (KR20DDET)
Torque output305 N⋅m (225 lb⋅ft) (KR15DDT) 370–380 N⋅m (273–280 lb⋅ft) at 1,600–4,800 rpm (KR20DDET)
Chronology
PredecessorQR25DE (KR15DDT) (I4) VQ35DE (KR20DDET) (V6)

The Nissan KR engines is a family of three and four-cylinder all-aluminum gasoline engines with a variable compression ratio and variable valve timing developed by Nissan.

KR15DDT[]

The KR15DDT engine is firstly introduced in the fourth-generation X-Trail.[1]

Applications:

  • 2021–present Nissan Rogue/X-Trail (T33)

KR20DDET[]

The KR20DDET was announced at the 2016 Paris Motor Show as the VC Turbo which had Nissan's new variable compression technology. The engine was introduced to Nissan's production cars in 2019 in the Infiniti QX50 and the Nissan Altima replacing the previous V6 options.[2] It was touted as the world’s first production-ready variable compression ratio engine.[3]

Applications:

  • 2017–present Infiniti QX50 (J55)
  • 2021–present Infiniti QX55 (J55)
  • 2022–present Infiniti QX60 (L51) (China)[4]
  • 2018–present Nissan Altima (L34)

See also[]

References[]

  1. ^ "东风日产全新奇骏首发！ 颜值更高-换新1.5T发动机_新车-网上车市".
  2. ^ "Nissan's new VCR engine: Worth the effort?".
  3. ^ "Infiniti reveals world's first market-ready variable compression ratio engine | CarAdvice". CarAdvice.com. Retrieved 2021-04-10.
  4. ^ "All-new INFINITI QX60 makes global debut, exclusive China-assembled model coming later this year". 24 June 2021.
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