Mitsubishi 4N1 engine
| Mitsubishi 4N1 engine | |
|---|---|
 | |
| Overview | |
| Manufacturer | Mitsubishi Motors |
| Production | 2010–present |
| Layout | |
| Configuration | 4-cylinder |
| Displacement | 1.8–2.4 L (1,798–2,442 cc) |
| Cylinder bore | 83 mm (3.27 in) 86 mm (3.39 in) |
| Piston stroke | 83.1 mm (3.27 in) 97.6 mm (3.84 in) 105.1 mm (4.14 in) |
| Cylinder block material | Aluminium die cast |
| Cylinder head material | Aluminium die cast |
| Valvetrain | DOHC, 16 valves, variable valve timing MIVEC (intake) |
| Compression ratio | 14.9:1-15.5:1 |
| Combustion | |
| Turbocharger | Variable geometry with intercooler |
| Fuel system | Common rail direct injection |
| Fuel type | Diesel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 85–133 kW (116–181 PS) |
| Torque output | 300–430 N⋅m (221–317 lb⋅ft) |
| Chronology | |
| Predecessor | Mitsubishi Sirius engine (Diesel Engine) |
The Mitsubishi 4N1 engine is a family of all-alloy four-cylinder diesel engines developed by Mitsubishi Motors, produced at the company's powertrain facility in Kyoto, Japan for use in Mitsubishi's small to mid-sized global passenger cars.[1][2][3]
In June 2006, Mitsubishi Motors Mitsubishi Heavy Industries and Renault announced a joint development project for a new generation of clean diesel engines to be used in cars exported to Europe with a target of beginning mass production in 2010[2] and later announced that the engines will be gradually phased into other global markets.[3][4]
The preliminary version of the 1.8 L (1,798 cc) engine was first seen in the Concept-cX test car introduced in 2007. The larger 2.3 L (2,268 cc) was first exhibited in the Concept-ZT test car introduced in the same year and later used in the Concept-RA test car introduced in 2008.[5][6][7][8]
With a clean diesel emission performance in mind, all engines are designed to comply with Tier 2 Bin 5 emission regulations in the United States, Euro 5 standard in Europe and Japan's Post New Long Term regulations.[1][3][8]
Together with Mitsubishi's electric vehicle technology the new diesel engines are positioned as a core element in the Mitsubishi Motors Environment Initiative Program 2010 (EIP 2010) announced in July 2006.[3][9]
The 4N1 engine family is the world's first to feature a variable valve timing (intake side) system applied to passenger car diesel engines.[10]
All engines developed within this family have aluminium cylinder block, double overhead camshaft layouts, 4 valves per cylinder, a common rail injection system with a variable-geometry turbocharger and MIVEC variable valve timing.
Engine family characteristics
Mitsubishi's new clean diesel engines use a 200 MPa (2,000 bar) high-pressure common rail injection system to improve combustion efficiency. The 4N13 1.8 L (1,798 cc) uses solenoid fuel-injectors. The larger 4N14 2.3 L (2,268 cc) engine uses piezo fuel-injectors that produce a finer fuel spray. Both engines feature a fast ceramic glowplug system. The engines are designed to operate at a lower compression ratio, thus lowering the combustion pressure, allowing the use of an aluminium cylinder block that reduces weight.[1][11]
The 4N13 1.8 L (1,798 cc) engine uses a Variable Geometry (VG) turbocharger with a variable vane turbine, which provides optimal boost pressure control for different driving conditions. The 4N14 2.3 L (2,268 cc) engine also uses a VG turbocharger plus a Variable Diffuser (VD) that uses both variable geometry vanes in the turbine housing and a compressor with variable vanes in the diffuser passage, further improving combustion efficiency.[1][11]
Within the engine, Mitsubishi used an offset angle crankshaft that reduces friction, therefore noise and vibration, allowing the engine to run smoothly and quietly at all engine speeds.[1][11]
To meet the requirements of global emissions standards, Mitsubishi developed a new catalyst system that combines a Diesel Oxidation Catalyst (DOC), NOx Trap Catalyst (NTC) and Diesel Particulate Filter (DPF).[1][11]
4N13
Specifications
| Engine type | Inline 4-cylinder, DOHC 16v, MIVEC (intake) |
| Displacement | 1.8 L (1,798 cc) |
| Bore x Stroke | 83 mm × 83.1 mm (3.27 in × 3.27 in) |
| Compression ratio | 14.9:1 |
| Turbocharger | variable geometry turbocharger with intercooler |
| Fuel system | Common rail with solenoid injectors |
| Peak power | 110 kW (150 PS) at 4000 rpm 85 kW (116 PS) at 4000 rpm (low power version) |
| Peak torque | 300 N⋅m (221 lb⋅ft) at 2000-3000 rpm |
Applications
- 2010 Mitsubishi ASX (RVR)
- 2010 Mitsubishi Lancer
- 2012 Peugeot 4008
- 2012 Citroën C4 Aircross
4N14
Specifications
| Engine type | Inline 4-cylinder, DOHC 16v, MIVEC |
| Displacement | 2.3 L (2,268 cc) |
| Bore x Stroke | 86 mm × 97.6 mm (3.39 in × 3.84 in) |
| Turbocharger | variable geometry turbocharger / variable diffuser, intercooler |
| Fuel system | Common rail with piezo injectors |
| Peak power | 130 kW (177 PS) at 3500 rpm [12] |
| Peak torque | 380 N⋅m (280 lb⋅ft) at 2000 rpm |
Applications
- 2010 Mitsubishi Outlander
- 2012 Mitsubishi Delica D:5 (without variable timing, 109 kW (148 PS)/360 N⋅m (266 lb⋅ft))
- 2013 Mitsubishi ASX (with A/T only)
- 2017 Mitsubishi Eclipse Cross
- 2019 Mitsubishi L200 and L300 (without variable timing, 73 kW (99 PS)/200 N⋅m (148 lb⋅ft))[13]
4N15
Specifications
| Engine type | Inline 4-cylinder, DOHC 16v, MIVEC |
| Displacement | 2.4 L (2,442 cc) |
| Bore x Stroke | 86 mm × 105.1 mm (3.39 in × 4.14 in) |
| Compression ratio | 15.5:1 |
| Turbocharger | variable geometry turbocharger / variable diffuser, intercooler |
| Fuel system | Common rail with electromagnetic solenoid injectors |
| Peak power | 133 kW (181 PS) at 3500 rpm [14] |
| Peak torque | 430 N⋅m (317 lb⋅ft) at 2500 rpm |
Applications
See also
References
- ^ a b c d e f "Environmental Highlights of the 2007 Tokyo Motor Show", Keith Hardy, .pdf file, Advanced propulsion news
- ^ a b "Joint Development of a New Generation Diesel Engine", Mitsubishi Motors press release
- ^ a b c d "Mitsubishi Motors to Bring Forward Market Introduction of Next-generation Diesel Car Engine", Mitsubishi Motors press release
- ^ "Mitsubishi Motors Lineup at 2007 North American International Auto Show", Mitsubishi Motors press release
- ^ "MITSUBISHI Concept-cX", Mitsubishi Motors press release
- ^ "Mitsubishi Motors lineup at the 40th Tokyo Motor Show" Archived 2007-10-12 at the Wayback Machine, Mitsubishi Motors press release
- ^ "Mitsubishi Motors new "MITSUBISHI Concept-RA" to receive global premiere at 2008 Detroit Motor Show, Mitsubishi Motors press release
- ^ a b "Mitsubishi Motors Lineup at 2008 North American International Auto Showto receive global premiere at 2008 Detroit Motor Show, Mitsubishi Motors press release
- ^ "Mitsubishi Motors Environment Initiative Program 2010", Mitsubishi Motors press release
- ^ Mitsubishi Motors UK Geneva motor show 2010 presskit
- ^ a b c d "Mitsubishi Reveals New Concept-cX", Mitsubishi Motors Australia press release
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-07-06. Retrieved 2010-09-20.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ "Mitsubishi L300 Kembali Ke Filipina Dengan Mesin Baru!". 10 April 2019.
- ^ http://mitsubishimotors-triton.com/images/Triton-Spec.jpg [bare URL image file]
