Nissan KR engine
From Wikipedia, the free encyclopedia
| Nissan KR engine | |
|---|---|
 KR20DDET engine in a 2020 Infiniti QX50 | |
| Overview | |
| Manufacturer | Nissan |
| Production | 2018–present |
| Layout | |
| Configuration | |
| Displacement | |
| Cylinder bore | 84 mm (3.31 in) |
| Piston stroke |
|
| Cylinder block material | Aluminum alloy |
| Cylinder head material | Aluminum alloy |
| Valvetrain | DOHC 4 valves per cylinder with VVT |
| Compression ratio | 8.0:1–14.0:1 |
| Combustion | |
| Turbocharger | Yes |
| Fuel system |
|
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | |
| Torque output | |
| Chronology | |
| Predecessor | |
The Nissan KR engine family consists of three and four-cylinder all-aluminium turbocharged gasoline engines in both 12-valve and 16-valve versions with a variable compression ratio and variable valve timing developed by Nissan.
The KH5T is a 1.5 L (1461 cc) DIG-T (Direct Injection Gasoline-Turbocharged) inline-3 12-valve engine, with a bore x stroke of 79.7 mm × 81.1 mm (3.14 in × 3.19 in).[clarification needed]. Power output is 160 PS (118 kW; 158 hp) and 240 N⋅m (177 lb⋅ft) of torque. The variation in compression ratio ranges between 8:1 and 14:1. This is achieved by the movement of an actuator which changes the length of the piston stroke according to the demand for power.[1]
Applications:
- 2022–present Nissan Qashqai e-Power 190 PS (140 kW; 187 hp), 330 N⋅m (243 lb⋅ft)
KR15DDT
The KR15DDT VC-Turbo 3 cylinder engine was introduced in the fourth-generation X-Trail.[2] The "VC" designation in the name indicates that the engine uses a variable compression ratio, allowing operating modes modes for both high power output and high fuel efficiency. The engine won Nissan its 19th trophy in the Wards 10 Best Engines and Propulsion systems awards of 2022; judge Drew Winter described it as “Very smooth, exceptionally quiet during idle, pleasant to drive in traffic or on the highway”, among other comments from judges such as “This engine inspires words that never have been uttered in the same sentence as 3-cylinder engine”.
Applications:
- 2021–present Nissan Rogue/X-Trail (T33) 201 hp (150 kW; 204 PS) @5600rpm, 225 lb⋅ft (305 N⋅m) @2800rpm
- 2026 Nissan Note Aura Nismo RS
KR20DDET
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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.[3] It was touted as the world's first production-ready variable compression ratio engine.[4]
Applications:
- 2017–2025 Infiniti QX50 (J55) 268 hp (200 kW; 272 PS) @5600rpm, 280 lb⋅ft (380 N⋅m) @4400rpm
- 2021–2025 Infiniti QX55 (J55) 268 hp (200 kW; 272 PS) @5600rpm, 280 lb⋅ft (380 N⋅m) @4400rpm
- 2022–present Infiniti QX60 (L51) 268 hp (200 kW; 272 PS), 286 lb⋅ft (388 N⋅m)[5][6]
- 2023–present Nissan Pathfinder (R53) (China)
- 2019–2024 Nissan Altima (L34) 248 hp (185 kW; 251 PS) @5600rpm, 280 lb⋅ft (380 N⋅m) @1600rpm
- 2024–present Nissan Murano (Z53) 241 hp (180 kW; 244 PS), 260 lb⋅ft (353 N⋅m)
- 2025–present Nissan Teana Plus (China)
- 2026–present Infiniti QX65
