Evaluation of tractor biodegradable hydraulic fluids on the basis of hydraulic pump wear

• Published in: Research in Agricultural Engineering (Praha) Vol. 59; no. 3; pp. 75 - 82
• Main Authors: Majdan, R., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Tkac, Z., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Kosiba, J., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Abraham, R., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Jablonicky, J., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Hujo, L., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Mojzis, M., Slovak University of Agriculture, Nitra (Slovak Republic). Dept. of Transport and Handling, Sevcik, P., Slovnaft, a.s., Bratislava (Slovak Republic), Raso, M., Slovnaft, a.s., Bratislava (Slovak Republic)
• Format: Journal Article
• Language: English; Czech
• Published: Prague Czech Academy of Agricultural Sciences (CAAS) 2013; Czech Academy of Agricultural Sciences
• Subjects: Agricultural equipment; agricultural tractor; BIODEGRADABILIDAD; BIODEGRADABILITE; BIODEGRADABILITY; Biodegradation; BOMBAS; CARACTERISTICAS DE LA MAQUINARIA; CARACTERISTIQUE DU MATERIEL; cleanliness level; Cyclic loads; DEBIT; DESGASTE; EFFICACITE; EFFICIENCY; EFICACIA; ENSAYO; EQUIPMENT CHARACTERISTICS; Evaluation; Flow characteristics; flow efficiency; FLOW RATE; fluid temperature; FLUIDE; FLUIDOS; FLUIDS; GASTO; GROSSEUR DES PARTICULES; http://www.fao.org/aos/agrovoc#c_2491; http://www.fao.org/aos/agrovoc#c_24914; http://www.fao.org/aos/agrovoc#c_25689; http://www.fao.org/aos/agrovoc#c_28259; http://www.fao.org/aos/agrovoc#c_2989; http://www.fao.org/aos/agrovoc#c_2994; http://www.fao.org/aos/agrovoc#c_3715; http://www.fao.org/aos/agrovoc#c_5601; http://www.fao.org/aos/agrovoc#c_6174; http://www.fao.org/aos/agrovoc#c_6370; http://www.fao.org/aos/agrovoc#c_7657; http://www.fao.org/aos/agrovoc#c_7683; http://www.fao.org/aos/agrovoc#c_7778; http://www.fao.org/aos/agrovoc#c_7847; Hydraulic equipment; Hydraulic fluids; Hydraulic loading; HYDRAULIC SYSTEMS; Hydraulics; Mineral oils; PARTICLE SIZE; POMPE; PRESION; PRESSION; PRESSURE; PUMPS; SISTEMAS HIDRAULICOS; SYSTEME HYDRAULIQUE; TAMANO DE LA PARTICULA; TEMPERATURA; TEMPERATURE; TEMPS; test bench; TESTAGE; TESTING; TIEMPO; TIME; TRACTEUR; TRACTORES; TRACTORS; USURE; WEAR
• ISSN: 1212-9151; 1805-9376
• DOI: 10.17221/18/2012-rae

Two types of biodegradable hydraulic fluids (HEES and HEPR) with the mineral oil-based hydraulic fluid (HV) were compared. The tests were performed using a test bench. During the tests with a tractor hydraulic pump, the fluids were loaded by a cyclic pressure load. The tests of fluids were evaluated on the basis of wear of the pump. Evaluation parameters were the flow characteristics of the pump and the cleanliness level of tested fluids. The temperature of the fluid under which the test was performed was measured in real operating conditions of the Zetor Forterra 11441 tractor. It is possible to state upon the test results that the mineral oil-based fluid was classified in the first place, the biodegradable fluid of the HEPR type in the second place, and the biodegradable fluid of the HEES type received the last position.