The new 2.2 diesel engine from Mazda

This article describes a new diesel engine developed by vehicle manufacturer Mazda, the MZR-CD 2.2, in terms of development targets, performance, engine layout and components, diesel particulate filter (DPF) system and engine control system. The new engine has higher output, higher torque, and better fuel economy than the previous 2.0 version. Technologies employed are 200 Mpa injection pressure; high-response injectors with atomised spray; optimised injection system, combustion chamber and swirl; optimised exhaust gas recirculation; and injection settings optimised by model-based calibration. An improved highly-efficient turbocharger with variable geometry results in higher output and response, and the engine features a diesel particulate filter with a new catalytic mechanism that increases the speed of soot oxidation. Balancer shafts, a rigid layout of lower block and a maintenance-free cam-drive chain improve noise, vibration, reliability and durability.

• Authors:
  • UESUGI, Y
  • KOUZUKI, M
  • MORI, T
  • NAITO, M
  • MORINGA, S
  • Yasuda, H
  • YAMAUCHI, M
  • TANIMURA, K
  • Kunz, J
• Publication Date: 2009-8

Language

• English

Media Info

• Pagination: 59-65
• Serial:
  • ATZ AUTOTECHNOLOGY
  • Volume: 9
  • Issue Number: 4
  • Publisher: FISITA

Subject/Index Terms

• TRT Terms: Air quality management; Automobiles; Catalytic converters; Development; Diesel engines; Durability; Emission control devices; Engine displacement; Exhaust gases; Fuel consumption; Fuels; Fumes; Improvements; Particulates; Pollutants; Torsion
• Uncontrolled Terms: Aftertreatment; Soot
• Subject Areas: Energy; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01159133
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jun 14 2010 9:20AM