Engineering: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) |
| Block material | Aluminium die cast |
| 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 | 85–150 kW (116–204 PS) |
| Torque output | 300–470 N⋅m (221–347 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. Most of those engine have the MIVEC variable valve timing system. The 4N14 2.3 L (2,268 cc) has been distributed in the ASX and Delica without MIVEC.
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 (CRDi) |
| Peak power | 130 kW (177 PS; 174 hp) at 3500 rpm [12] 110 kW at 3500 rpm without MIVEC[13] |
| Peak torque | 380 N⋅m (280 lb⋅ft) at 2000 rpm 360 N⋅m (266 lb⋅ft) at 1500-2750 rpm without MIVEC |
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, without variable timing)
- 2017 Mitsubishi Eclipse Cross
- 2019 Mitsubishi L200 and L300 (without variable timing, 73 kW (99 PS)/200 N⋅m (148 lb⋅ft))[14]
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 3,500 rpm[15] |
| Peak torque | 430 N⋅m (317 lb⋅ft) at 2,500 rpm |
Applications
- 2014 Mitsubishi Type 73 Light Truck
- 2015 Mitsubishi Triton/L200/Strada
- 2015 Mitsubishi Pajero Sport/Montero Sport/Shogun Sport
4N16
Specifications
| Engine type | Inline 4-cylinder, DOHC 16v, MIVEC |
| Displacement | 2.4 L (2,439 cc) |
| Bore x Stroke | 86 mm × 105 mm (3.39 in × 4.13 in) |
| Compression ratio | 15.1–15.2:1 |
| Turbocharger | variable geometry turbocharger / variable diffuser, intercooler |
| Fuel system | Common rail |
| Peak power | 97–150 kW (132–204 PS) at 3,250–3,500 rpm |
| Peak torque | 330–470 N⋅m (243–347 lb⋅ft) at 1,500–3,000 rpm |
Applications
- 2022 Nissan Caravan/Isuzu Como[16]
- 2023 Mitsubishi Triton/L200[17]
See also
- List of Mitsubishi engines
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "Environmental Highlights of the 2007 Tokyo Motor Show", Keith Hardy, .pdf file, Advanced propulsion news
- ↑ 2.0 2.1 "Joint Development of a New Generation Diesel Engine", Mitsubishi Motors press release
- ↑ 3.0 3.1 3.2 3.3 "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" , Mitsubishi Motors press release
- ↑ "Mitsubishi Motors new "MITSUBISHI Concept-RA" to receive global premiere at 2008 Detroit Motor Show, Mitsubishi Motors press release
- ↑ 8.0 8.1 "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
- ↑ 11.0 11.1 11.2 11.3 "Mitsubishi Reveals New Concept-cX", Mitsubishi Motors Australia press release
- ↑ "Archived copy". Archived from the original on 2011-07-06. https://web.archive.org/web/20110706093407/http://www.mitsubishi-motors.at/uploadedFiles/Parent_Site/Models_Data/Explores_Files/OutlanderMY2010/Datenblatt%20Outlander.pdf. Retrieved 2010-09-20.
- ↑ https://mitsubishi-motors.co.uk/wp-content/uploads/2021/06/14MY-ASX-Owners-Manual.pdf
- ↑ "Mitsubishi L300 Kembali Ke Filipina Dengan Mesin Baru!". 10 April 2019. https://autonetmagz.com/mitsubishi-l300-kembali-ke-filipina-dengan-mesin-baru/77873/.
- ↑ http://mitsubishimotors-triton.com/images/Triton-Spec.jpg [bare URL image file]
- ↑ "日産：キャラバン [ CARAVAN ビジネスセダン/バン ｜走行性能"] (in ja-JP). https://www3.nissan.co.jp/vehicles/new/caravan/performance.html.
- ↑ "World Premiere of the All-New Triton One-ton Pickup Truck - Sales Starts in Thailand Today, Launch Planned for Japan in Early 2024" (Press release). Tokyo, Japan: Mitsubishi Motors. 2023-07-26. Retrieved 2023-07-26.
External links
 |  |
