Effects of oil contamination level, flow rate and viscosity on pressure drop development and dirt holding capacity of hydraulic filter

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu



  • Parker Hannifin, Hydraulic and Industrial Process Filtration EMEA, Urjala, Finland


In hydraulic systems, the presence of foreign material in the system oil accounts for the majority of system troubles due to mechanical wear of components, sticking of different parts etc. Therefore, it is essential to maintain an adequate cleanliness level of the fluid at all times through filtration. Mechanical filters are used for this purpose, to separate solid particles from the system oil. As a hydraulic filter gets accumulated with dirt throughout its service life, the pressure drop over the filter element increases. This pressure drop is typically used for determining the lifetime of a filter element: once a predetermined pressure drop at certain flow conditions has been reached, the filter has accumulated enough dirt to require servicing or replacement. In this paper, a correlation model has been developed to describe the effects of flow and fluid properties on the dirt holding capacity and the service life duration of a hydraulic filter. For this purpose, extensive laboratory tests have been carried out in order to measure the pressure drop development of a filter unit at different oil flow rates, viscosities and gravimetric contamination levels.


OtsikkoASME/BATH 2019 Symposium on Fluid Power and Motion Control, FPMC 2019
TilaJulkaistu - 7 lokakuuta 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaASME/BATH Symposium on Fluid Power and Motion Control - Longboat Key, Yhdysvallat
Kesto: 7 lokakuuta 20199 lokakuuta 2019


ConferenceASME/BATH Symposium on Fluid Power and Motion Control
KaupunkiLongboat Key

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