Change search
ReferencesLink to record
Permanent link

Direct link
Elektrisk matarpump för bränslesystem: En förstudie
2011 (Swedish)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

For transportation of fuel from the fuel tank to the engine a mechanical pump, driven by and mounted on the engine, is generally used in heavy-duty vehicles today. The main reason for using such a pump is that it is considered being the most robust solution for the simple task of delivering and pressurizing fuel. Today’s pumps are oversized in order to deliver sufficient flow and pressure at engine starting conditions.It is desirable to be able to continuously control fuel flow to reduce the required pump work in cases where today’s pump has overcapacity. An electrically driven pump can be controlled to deliver fuel on demand and also provides other advantages, e.g. free placement, possible downsizing of the pump and additional software features, such as priming and automatic deaeration.The project has been conducted as an exploratory study containing concept generation for component placement and testing of today’s common rail fuel system for specification. Suppliers of fuel pumps and filters have been contacted as an investigation of what the market has to offer today to make an electrified low pressure fuel circuit possible.Since switching to an electric pump enables free placement, a concept was developed where an already planned catch tank solution was combined with the idea of mounting the low pressure fuel pump in-tank. The result came out as a small tech tank, intended to hold all functional components of the fuel system, upstream of the main pressure side filter. This tech tank could be delivered with all Scania products with common rail injection.In the future it is recommended to implement electric low pressure fuel pump and move the fuel/water separation downstream of the pump. Since there is no supplier that has a fin- ished product that meets specification today, Scania is recommended to monitor the technical advances of the contacted manufacturers.

Place, publisher, year, edition, pages
Keyword [en]
Keyword [sv]
Teknik, Dieselmotor, Fordon, Elpump, Bränslesystem, Scania, Common Rail
URN: urn:nbn:se:ltu:diva-57751Local ID: e61c8994-1bc0-491a-b2d3-df82a58d1d66OAI: diva2:1031139
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20110919 (anonymous)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(12132 kB)0 downloads
File information
File name FULLTEXT02.pdfFile size 12132 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Fransson, RobertNano, Maikel

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

ReferencesLink to record
Permanent link

Direct link