Flow of liquid in flat gaps of the satellite motor working mechanism

• Autorzy: Sliwiński P.
• Języki publikacji: EN

Abstrakty

EN

The article describes the methodology and results of investigations of the flow of oil and HFA-E emulsion in flat gaps of the working mechanism of a satellite motor. The flow of liquid in those gaps is turbulent and not fully developed. The article presents two methods of modelling this flow. Method I makes use of the Darcy-Weisbach formula, while Method II bases on the assumption that in the variable-length gaps the flow is turbulent in the area where the length is the smallest and laminar where the length is the largest. Consequently, the flow in such gaps can be modelled as the sum of laminar and turbulent flows. The results obtained in the experiment have made the basis for calculating relevant coefficients and assessing the proportion of turbulence in the flow modelled using both methods.

Słowa kluczowe

EN

flow in flat gap; satellite motor; HFA-E emulsion; oil

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2014
• Tom: nr 2
• Strony: 50--57
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Sliwiński P.

• Faculty of Mechanical Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, POLAND

Bibliografia

• 1. Balawender A., Sliwinski P. and others: Developmental research of hydraulic satellite motors and satellite pump with small geometrical displacement supplied with water, emulsion and oil (in Polish). Report of research project nr R0300103. Gdansk University of Technology, 2010
• 2. Balawender A.: Physical and mathematical model of losses in hydraulic motors. Developments in mechanical engineering, Gdansk University of Technology Publishers, Gdansk 2005
• 3. Balawender A., Elgert K. and others.: Research on development of satellite hydraulic motors of III generation (in Polish). Research project KBN no. 8T07C04720. Gdansk University of Technology, 2003
• 4. Łubiński J., Śliwiński P. Multi parameter sliding test result evaluation for the selection of material pair for wear resistant components of a hydraulic motor dedicated for use with environmentally friendly working fluids. Conference Wear Processes 2012. Szczecin 2012
• 5. Śliwiński P., Patrosz P.: Diagnostics of commutation unit in satellite pumps and motors. Hydraulika a Pneumatika, No 1-2/ 2013
• 6. Śliwiński P.: R&D of satellite pumps and motors with small geometrical displacement supplied with oil and non-flammable liquids. Developments in mechanical engineering nr 5/2012. Gdańsk University of Technology Publishers, Gdańsk 2012
• 7. Śliwiński P.: Researches on compensation and valve plate in SM satellite pumps and motors type (in Polish). Hydraulika I Pneumatyka nr 5/2010
• 8. Śliwiński P.: Results of developmental research of hydraulic satellite motors series of types SM. Chapter in the monograph: „Research, design, production and operation of hydraulic systems”(in Polish), „Cylinder” Library. Komag Mining Mechanisation Centre, Gliwice 2010
• 9. Śliwinski P.: The methodology of developmental research of new type satellite motors and pumps (in Polish). International Scientific Technical Conference Hydraulics and Pneumatics, Wroclaw, 2009
• 10. Śliwiński P.: Losses and power balance in hydraulic satellite motor supplied with oil and HFA-E emulsion. Hydraulika a Pneumatika, No 1-2/2009
• 11. Śliwiński, P. (2007). Influence of oil and emulsion HFA-E on flow characteristics in gaps of hydraulics satellite motors (in Polish). Hydraulika i Pneumatyka, No 5/2007
• 12. Śliwiński, P.; Balawender A. Research and describing of phenomena in new series of type satellite hydraulic motors with clearances compensation (in Polish). International-Scientific Technical Conference Hydraulic and Pneumatics 2005. Wroclaw 2005
• 13. Catalogue of products made by Harken: www.harken.pl