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	Introduction     Database      Technologies    Projects     Calendar     Discussions     Contact & Links     Imprint & Disclaimer     Sitemap	go back to technology list       previous technology  next technology     Common Rail  evaluated   Whereas in conventional diesel engines injection pressure is generated for each injector individually, a common rail engine stores the fuel under high pressure in a central container ("common rail") and delivers it to the individual injectors on demand. Benefits of common rail injection are reduced noise levels, stronger performance, improved emission control and greater efficiency. Technology field: Optimisation of traction technologies General information   Description General criteria   Status of development: in use   Time horizon for broad application: 5 - 10 years   Expected technological development: dynamic   Benefits (other than environmental): big   Barriers: low   Applicability for railway segments: medium     Type of traction:  diesel     Type of transportation:  passenger - main lines, passenger - regional lines, passenger - suburban lines, freight     Grade of diffusion into railway markets:   Diffusion into relevant segment of fleet: < 5%   Share of newly purchased stock: (no data)   Market potential (railways): medium Environmental criteria   Impacts on energy efficiency:   Energy efficiency potential for single vehicle: > 10%   Energy efficiency potential throughout fleet: 1 - 2%   Other environmental impacts: positive Economic criteria   Vehicle - fix costs: low   Vehicle - running costs: significant reduction   Infrastructure - fix costs: none   Infrastructure - running costs: unchanged   Scale effects: medium   Amortisation: not applicable Application outside railway sector   Status of development outside railway sector: in use   Time horizon for broad application outside railway sector: now   Expected technological development outside railway sector: dynamic   Market potential outside railway sector: high Overall rating   Overall potential: very promising   Time horizon: mid-term References / Links:  Günther 1998;  www.siemensvdo.com Attachments: Related projects: Contact persons:  date created: 2002-10-09     © UIC - International Union of Railways 2003			Your contribution    add technology  Views of this page    show overview    show evaluation    show details  Print options    print data sheet    print screen  Help    Evaluation briefing    Technology list     French - German