The HR is a family of straight-312-valve and straight-416-valveautomobile 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 72.2mm (2.84in), 75.5mm (2.97in) and 78mm (3.07in) bore diameter.
The HR10DE is a 1.0L (999cc)naturally aspiratedstraight-three engine. Bore: 78mm (3.07in); Stroke 69.7mm (2.74in); 12v DOHC.[1] It produces 56.6kW (77PS; 76hp) and 98N⋅m (72lbf⋅ft). Flex-Fuel, gasoline (E22) or ethanol (E100). Compression ratio of 11.2:1.
The HR14DDe is a 1.4L (1,433cc) naturally aspirated straight-3 engine. Bore: 78mm (3.07in); Stroke 100mm (3.94in); 12v DOHC; direct injection with variable valve timing. It produces 72kW (97hp; 98PS) at 5,600rpm and 123N⋅m (91lbf⋅ft).[4] Purposely, this engine is only built as a power generator for the electric motor.
The HR15DE is a 1.5L (1,498cc) naturally aspirated straight-4 engine. Bore: 78mm (3.07in); Stroke 78.4mm (3.09in); 16 valve DOHC; EFI with variable valve timing. It produces 74kW (99hp; 101PS) at 6000rpm and 134.4N⋅m (99lbf⋅ft) at 4000rpm and is fitted to the following vehicles:
The HR16DE is a 1.6L (1,598cc) 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: 78mm (3.07in); Stroke 83.6mm (3.29in). It produces 77 to 88kW (103 to 118hp; 105 to 120PS) and 158N⋅m (117lbf⋅ft) at 4000rpm. A new version (still 8 Cycle) has been released to equip Renault hybrids (E-Tech), it produces 67kW (90hp; 91PS) at 5600rpm and 144N⋅m (106lbf⋅ft) at 3200rpm. It is fitted to the following vehicles:
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.[6][7]
HR12DDR
Nissan HR12DDR
The HR12DDR is a 1.2L (1,198cc) supercharged straight-3 engine, equipped with timing chain and direct injection. The engine dimensions are the same as for the HR12DE. It produces 72kW (98PS; 97hp) and 143N⋅m (105lb⋅ft). Designed for small-car applications, this gasoline engine incorporates a variety of technologies to minimize CO2 emissions while providing practical levels of power output.[2][8]
Some of the pertinent features are:
Compression ratio of 13.0:1
Continuous Variable Valve Timing Control System (CVTCS)
The HR12DDV is a 1.2L (1,199cc) 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 75.5 and 89.3mm (2.97 and 3.52in) respectively. It produces between 130hp (96kW) with 205N⋅m (151lbf⋅ft) for the E-Tech version; 230N⋅m (170lbf⋅ft) for normal version, to 150hp (110kW) with 230N⋅m (170lbf⋅ft) depending on the application. Renault marketing names for these engines are TCe 130, TCe 150 (on the Grand Austral) and E-Tech 200.
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 78mm bore variants
introduced in 2013 on Renault cars
HR12DDT / HRA2 (Renault H5Ft)
The HR12DDT is a 1.2L (1,197cc) 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: 72.2mm (2.84in), Stroke 73.1mm (2.88in). It produces two choices, 85kW (114hp; 116PS) at 4500or 5000or 6000rpm with 190N⋅m (140lbf⋅ft) at 1900–4000rpm and 97kW (130hp; 132PS) at 5000–5500;rpm with 205N⋅m (151lbf⋅ft) at 2000–3000rpm depending on the application. Renault marketing names for these engines are TCe115, TCe120, TCe125, and TCe130.
This engine has been plagued by abnormal oil consumption.[10]
HR10DE (Renault H4D)
The HR10DE is a 1.0L (999cc) multi point injected, naturally aspirated, straight-3 engine. It produces 45 to 52kW (60 to 70hp; 61 to 71PS) at 6000rpm and 91N⋅m (67lbf⋅ft) at 2850rpm.
The H4Bt is a 0.9L (898cc) multi point injected, turbocharged, straight-3 engine. It produces 66kW (89hp; 90PS) at 5500rpm and 135 to 140N⋅m (100 to 103lbf⋅ft) at 2250–2500rpm. A 110hp version was available in the Twingo GT (2016–2018).
The HR13DDT is a 1.3L (1,332cc) all-aluminium direct injected and turbochargedstraight-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: 72.2mm (2.84in), Stroke 81.3mm (3.20in). There are three different versions: 85kW (114hp; 116PS) at 4500rpm with 220N⋅m (162lbf⋅ft) at 1500–3500rpm, 103kW (138hp; 140PS) at 5000rpm with 240N⋅m (177lbf⋅ft) at 1600–3600rpm, and 117kW (157hp; 159PS) at 5500rpm with 270N⋅m (199lbf⋅ft) at 1800–3500rpm 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:
The HR10DET is a 1.0L (999cc) multi point injected, turbocharged, straight-three engine with a 72.2mm (2.84in) bore and an 81.3mm (3.20in) stroke.[12] It produces 74kW (100PS; 99hp) at 5000rpm and 160N⋅m (118lbf⋅ft) at 1750rpm. This engine is also available as a LPG version. Maximum power is unchanged but torque is 170N⋅m (125lbf⋅ft) at 2000rpm.
The HR10DDT is a 1.0L (999cc) direct injected, turbocharged, straight-3 engine. It produces 85 or 86kW (114 or 115hp; 116 or 117PS) at 5000rpm or 5250rpm and 200N⋅m (148lbf⋅ft) at 2750rpm or 180 to 200N⋅m (133 to 148lbf⋅ft) at 1750–4000rpm.
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