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Nissan HR engine

The HR is a family of straight-3 12-valve and straight-4 16-valve automobile engines with continuously variable valve timing, involving development by Nissan (Aichi Kikai) and/or Renault, and also Mercedes-Benz in the case of the H5Ht/M282. The designation of H engine is used by Renault, and M28x by Mercedes-Benz, to classify the family. There are three basic specifications of engine involving variations in engine architecture, or all-new architecture, with , and bore diameter.

78 mm series (2004–)

  • introduced in 09/2004 on Nissan Tiida C11 in Japan
  • three- and four-cylinder layouts, multi point fuel injection except HR12DDR and HR14DDe with direct fuel injection
  • most engines naturally aspirated with few exceptions being supercharged or turbocharged
  • No Daimler involvement

HR10DE

The HR10DE is a naturally aspirated straight-three engine. Bore: ; Stroke ; 12v DOHC. It produces and . Flex-Fuel, gasoline (E22) or ethanol (E100). Compression ratio of 11.2:1.

It is fitted to the following vehicles:

HR12DE

The HR12DE is a naturally aspirated straight-three engine. Bore: ; Stroke ; 12-valve DOHC; EFI with variable valve timing. It produces and .

It is fitted to the following vehicles:

HR14DET (Renault H4Jt)

1397 cc, 96 kW (130 PS) at 5500 rpm, 190 Nm at 2250 rpm. Bore: ; Stroke .

HR14DDe

The HR14DDe is a naturally aspirated straight-3 engine. Bore: ; Stroke ; 12v DOHC; direct injection with variable valve timing. It produces at 5,600 rpm and . Purposely, this engine is only built as a power generator for the electric motor.

HR15DE (Renault H4K)

The HR15DE is a naturally aspirated straight-4 engine. Bore: ; Stroke ; 16 valve DOHC; EFI with variable valve timing. It produces at 6000 rpm and at 4000 rpm and is fitted to the following vehicles:

HR16DE (Renault H4M)

The HR16DE is a naturally aspirated gasoline straight-4 engine, 16 valve DOHC; EFI; with variable valve timing. This engine has two fuel injectors per cylinder to improve fuel economy and reduce emissions. Bore: ; Stroke . It produces and at 4000 rpm.

A new version was developed for Renault hybrids (E-Tech); it produces at 5600 rpm and at 3200 rpm.

In 2016, Nissan's skunkworks division, Autech, produced a limited run of Nissan March Autech Bolero models called the "A30", featuring an upgraded HR16DE engine. This hand built variant produced 150ps and 160N⋅m, with a redline of 7,100RPM. Upgrades included Autech camshafts, pistons, connecting rods, a new crankshaft, ported and polished intake ports, a freer flowing exhaust, an upgraded intake, and a re-tuned ECM. Only 30 examples were produced to commemorate Autech's 30th anniversary.

It is fitted to the following vehicles:

DE engine updates (2006–present)

Changes include:

  • neutral idle control achieved through the coordinated control of the engine in tandem with the XTRONIC CVT
  • introduction of alternator regenerative control mechanism
  • Reduction of engine friction by machining the cam shaft to a crowning mirror-like finish and application of a fluorine coating to the chain guide
  • Delayed valve closure timing of the intake, achieved through the increased conversion angle of C-VTC and superior timing management, thus reducing pumping loss when idling
  • Lower idling speed

The improved HR15DE engines were first used in Nissan Cube, Nissan Cube Cubic, Nissan Note, Nissan Tiida, Nissan Tiida Latio and Nissan Wingroad sold since December 25, 2006.

HR12DDR

The HR12DDR is a supercharged straight-3 engine, equipped with timing chain and direct injection. The engine dimensions are the same as for the HR12DE. It produces and . Designed for small-car applications, this gasoline engine incorporates a variety of technologies to minimize emissions while providing practical levels of power output.

Some of the pertinent features are:

  • Compression ratio of 13.0:1
  • Continuous Variable Valve Timing Control System (CVTCS)
  • Direct Injection Gasoline (DIG)
  • Miller cycle
  • Supercharged
  • Variable capacity oil pump
  • Hydrogen-free, diamond like carbon (DLC) coated valve lifters and piston rings
  • Sodium filled exhaust valves
  • High efficiency

It is fitted to the following vehicles:

HR18DDh

The HR18DDh is an approx. naturally aspirated gasoline straight-4 engine developed by Renault for the second generation of E-Tech Small. Based on the HR16DE it replaces, It made its first appearance in 2025 and is Euro7 compatible. Like the HR16, it can be fitted on all CMF-B vehicles. The engine started being sold as the Horse Powertrains HR18 in 2025.

The engine produces at 5,750rpm and of torque at 4,000rpm and is used alongside a traction motor and a starter-generator motor with a 230V 1.4kWh battery for a total of . Compared to the previous H4M engine, it has direct injection and Atkinson cycle to improve thermal efficiency. The improved performance allows the 0 acceleration time of the Captur E-tech to drop to 8.9seconds compared to 10.6seconds of the previous E-tech, while reducing fuel consumption from . Towing capacity also increases from .

It will be fitted to the following vehicles:

75.5 mm series

HR12DDV (Renault HR12)

The HR12DDV is a all-aluminium direct injected and variable geometry turbocharged straight-three engine 48V mHEV equipped with lifetime timing chain, 12v DOHC, VVT, variable displacement oil pump, electric driven water pump, with Bore Spray Coating, Stop-Start, and regenerative braking, Bore and stroke are respectively. It produces between with for the E-Tech version; for normal version, to with depending on the application. Renault marketing names for these engines are TCe 130, TCe 150 (on the Grand Austral) and E-Tech 200.

It is fitted to the following vehicles:

72.2 mm series

  • most of the engines were first seen in Renault or Mercedes-Benz cars
  • three and four-cylinder layouts with direct fuel injection except HR09DET, HR10DE and HR10DET
  • designed specifically for turbocharged application, with thicker cylinder walls than the 78 mm bore variants
  • introduced in 2013 on Renault cars

HR12DDT / HRA2 (Renault H5Ft)

The HR12DDT is a all-aluminium direct injected and turbocharged straight-four engine equipped with lifetime timing chain, 16v DOHC, VVT, variable displacement oil pump, Stop-Start and regenerative braking, Bore: , Stroke . It produces two choices, at 4500 or 5000 or 6000 rpm with at 1900–4000 rpm and at 5000–5500; rpm with at 2000–3000 rpm depending on the application. Renault marketing names for these engines are TCe115, TCe120, TCe125, and TCe130.

It is fitted to the following vehicles:

This engine has been plagued by abnormal oil consumption.

HR10DE (Renault H4D)

The HR10DE is a multi point injected, naturally aspirated, straight-3 engine. It produces at 6000 rpm and at 2850 rpm.

HR09DET (Renault H4Bt)

The H4Bt is a multi point injected, turbocharged, straight-3 engine. It produces at 5500 rpm and at 2250–2500 rpm. A 110 hp version was available in the Twingo GT (2016–2018).

HR13DDT (Renault H5Ht / Mercedes-Benz M282)

The HR13DDT is a all-aluminium direct injected and turbocharged straight-four engine equipped with lifetime timing chain, 16v DOHC, VVT, variable displacement oil pump, Stop-Start, regenerative braking, and Bore Spray Coating system (as installed in Nissan GT-R models), Bore: , Stroke . There are three different versions: at 4500 rpm with at 1500–3500 rpm, at 5000 rpm with at 1600–3600 rpm, and at 5500 rpm with at 1800–3500 rpm depending on the application. Renault brands for these engines are TCe115, TCe140 and TCe160. This engine tests WLTP proof (Euro 6c). This engine is also rebranded as a Mercedes-Benz under the name "M282", adding cylinder deactivation technology. It is fitted to the following vehicles:

HR10DET / HRA0 (Renault H4Dt)

The HR10DET is a multi point injected, turbocharged, straight-three engine with a bore and an stroke. It produces at 5000 rpm and at 1750 rpm. This engine is also available as a LPG version. Maximum power is unchanged but torque is at 2000 rpm.

HR10DDT / HRA1 / Renault H5Dt

The HR10DDT is a direct injected, turbocharged, straight-3 engine. It produces at 5000 rpm or 5250 rpm and at 2750 rpm or at 1750–4000 rpm.

See also

References

External links