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Analysis of the long-term performance and tribological behavior of an axial piston pump using diamondlike-carbon-coated piston shoes and biodegradable oil
Kalin, Mitjan (Avtor), Majdič, Franc (Avtor), Vižintin, Jože (Avtor), Pezdirnik, Jože (Avtor), Velkavrh, Igor (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1115/1.2805442 Novo okno

Izvleček
This work reports on the performance enhancement of a real-scale hydraulic system consisting of diamondlike-carbon (DLC)-coated components in combination with biodegradable oil in long-term experiments under conditions simulating those in an actual application. The performance of a hydraulic axial piston pump with DLC-coated piston shoes was evaluated in a newly designed, dedicated hydraulic test system using fully formulated biodegradable, synthetic ester oil. For comparison, an equal but separated hydraulic system with a conventional commercial pump and stainless-steel shoe surfaces was tested. The tests were run at 85% of the maximum pump load and anoil temperature of around 80°C for a period of 2000 h, which corresponds tomore than 1 yr of continuous 8 h/day operation in an application. A major abrupt oxidation-induced degradation of the oil did not occur in either system; however, the oil from the system comprising the DLC-coated shoes showed noticeably and consistently better results. The wear of the DLC-coated shoes, especially during the running in, was much lower than that in the conventional steel system. Only minor polishing wear was observed on the DLC shoe's sliding surfaces during the test period, while on the steel shoe's surfaces, many scratches were found and some erosion of the edges was detected.

Jezik:Angleški jezik
Ključne besede:batne črpalke, DLC, biorazgradljiva olja, hidravlika, tribologija, DLC, biodegradable oil, piston pump, hydraulics, tribology
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2008
Št. strani:011013-1 - 011013-8
Številčenje:Vol. 130, no. 1
UDK:621.8
ISSN pri članku:0742-4787
DOI:10.1115/1.2805442 Povezava se odpre v novem oknu
COBISS.SI-ID:10346523 Povezava se odpre v novem oknu
Število ogledov:474
Število prenosov:194
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:Journal of tribology
Skrajšan naslov:J. tribol.
Založnik:American Society of Mechanical Engineers
ISSN:0742-4787
COBISS.SI-ID:7267077 Novo okno

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