Refinement of Engine in-cycle losses of Parasitic and Errant Dynamic Nature (Encyclopaedic)
Lead Research Organisation:
University of Sheffield
Department Name: Mechanical Engineering
Abstract
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Organisations
- University of Sheffield (Lead Research Organisation)
- ES Technology (United Kingdom) (Project Partner)
- Capricorn Automotive (United Kingdom) (Project Partner)
- Aston Martin Lagonda (United Kingdom) (Project Partner)
- BP Lubricants (Project Partner)
- Ricardo (United Kingdom) (Project Partner)
- Prodrive (United Kingdom) (Project Partner)
- Ford Motor Company (United States) (Project Partner)
Publications
Avan E
(2012)
Experimental and numerical investigations of oil film formation and friction in a piston ring-liner contact
in Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Dwyer-Joyce R
(2010)
Tribology and Dynamics of Engine and Powertrain
Dwyer-Joyce R
(2013)
Special Issue on Automotive Piston-Cylinder Tribology
in Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
E. Y. Avan (Author)
(2010)
Ultrasonic imaging of the piston ring oil film during operation in a motored engine - Towards oil film thickness measurement
in SAE Technical Papers
Hunter A
(2012)
Calibration and validation of ultrasonic reflection methods for thin-film measurement in tribology
in Measurement Science and Technology
Littlefair B
(2013)
Lubrication of a flexible piston skirt conjunction subjected to thermo-elastic deformation: A combined numerical and experimental investigation
in Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Littlefair B
(2013)
Transient Tribo-Dynamics of Thermo-Elastic Compliant High-Performance Piston Skirts
in Tribology Letters
Mills R
(2012)
Piezoelectric sensors to monitor lubricant film thickness at piston-cylinder contacts in a fired engine
in Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
| Description | We have for the first time measured the oil films that form in a automotive engine cylinder. We should that oil films of the order of a few microns form between the position rings and the liner and the shirt and the liner. We were able to show how the piston moves within the cylinder and how secondary motion occurs. his secondary motion is the source of energy losses in the engine. |
| Exploitation Route | This new measurement method can be used by automotive engine developers to assess engine performance. |
| Sectors | Transport |
| Description | Data recorded during the project usig the novel measurement methods was used by Ricardo to validate their commercial PISDYN code. PISDYN is a commercial software sold by Ricardo Ltd. It is used to design piston/ring systems for autoengines. We measured oil films in a fired engine and produced a databank of oil film thickness at the rings, skirt, and pisotn secondary motion. This data was supplied to Ricardo who modelled the same engine and used this as a validation excercise. Beneficiaries: Ricardo Ltd Contribution Method: Improved sotware code, increased confidence in software and hence ommercially more valuable product. Measurement methods have been applied to large size marine diesel engines with WinGD (Wartsila). Experiments on their marine engine test bed RX8 have been used to identify the effects of lubricant supply system on poison ring oil film thickness. |
| Sector | Transport |
| Impact Types | Cultural,Economic |
| Description | Horizon 2020 |
| Amount | € 400,000 (EUR) |
| Funding ID | Tomasz Liskiewicz |
| Organisation | European Commission |
| Department | Horizon 2020 |
| Sector | Public |
| Country | European Union (EU) |
| Start | 04/2015 |
| End | 03/2018 |
| Description | Industry funding |
| Amount | £106,656 (GBP) |
| Organisation | Ricardo UK Ltd |
| Sector | Private |
| Country | United Kingdom |
| Start | 11/2014 |
| End | 10/2015 |
| Title | In-Situ Device for Measurement of Piston-Cylinder Oil Film In Auto Engines |
| Description | This device can non-invasively measure the oil film inside an auto-engine. |
| Type Of Material | Improvements to research infrastructure |
| Year Produced | 2014 |
| Provided To Others? | Yes |
| Impact | Use by Ricardo to validate PISDYN software for engine cylinder design/ |
| Description | Engines - the magic of oil |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Schools |
| Results and Impact | A talk to school kids as part of the Ignite Sheffield scheme excited school kids about science and lubrication |
| Year(s) Of Engagement Activity | 2013 |
| Description | Friction and Where our Energy Ends Up |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Public/other audiences |
| Results and Impact | Royal Academy of Engineering The 11th Annual Regional Public Lecture, 23 March 2011, Sheffield. excellent engagement. led o a request to do another public lecture in the sheffield region |
| Year(s) Of Engagement Activity | 2011 |