OIL DEGRADATION SUPPRESSION DEVICE

摘要

The present invention provides an oil deterioration prevention device that can prevent increase in pressure loss by reducing oilflow resistance. An oil deterioration prevention device 1 includes a filtering unit 3 including a filter element 10 that filters oil, and a deterioration prevention unit 4 including a powdery deterioration prevention agent 15 that prevents deterioration of oil, wherein the deterioration prevention unit includes a passage wall 16 that retains the deterioration prevention agent and forms an oil passage.