Change search
ReferencesLink to record
Permanent link

Direct link
Development of Linear Bearing for Free Piston Engine
2011 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Volvo Technology has earlier developed a free piston engine prototype and tested it. It was found that a new bearing design was needed for the translator and piston in order to reduce friction losses and thus improve operational life and efficiency. These conclusions led to this master thesis project which has been carried out during a time span of 20 weeks. A large literature- and concept study has been carried out, resulting in a number of promising concepts to solve the bearing problem. A combined aerodynamic and aerostatic bearing for the translator was chosen for the investigation. A theoretical study has therefore been carried out together with static and dynamic rig test in order to verify the theoretical results and evaluate the opportunities of using it in a full-scale prototype. The rig tests were shown to function and correspond well to the theoretical results and it was concluded that the aerostatic bearing concept chosen, was very promising. It was found that a supply pressure of 4bar would manage to keep the translator centred which resulted in an energy consumption of barely 200W.

Place, publisher, year, edition, pages
Keyword [en]
Keyword [sv]
Teknik, Tribologi
URN: urn:nbn:se:ltu:diva-46059Local ID: 3b3d0dd6-feed-47e5-bfdc-e5826165a995OAI: diva2:1019368
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20110505 (anonymous)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(7001 kB)5 downloads
File information
File name FULLTEXT02.pdfFile size 7001 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Söderfjäll, MarkusLövgren, Joachim

Search outside of DiVA

GoogleGoogle Scholar
Total: 5 downloads
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

Total: 1 hits
ReferencesLink to record
Permanent link

Direct link