Working fluid accumulation device

Abstract

A reservoir device is provided, which prevents water from flooding in an accumulation tank and improves on-vehicle installation capability. The reservoir device 10 includes a catch tank 13 connected to an airspace “A” formed above an oil surface of working oil accumulated in an accumulation tank 12, which has a bottom surface formed with an external-air communication aperture 32. Liquid entering from the external-air communication aperture 32 is allowed, to be accumulated in the catch tank 13 once, and then is suitably discharged through the external-air communication aperture 32. This precludes the accumulation tank 12 from flooding with water and improves on-vehicle installation capability. The reservoir device 10 can be obtained, in which the accumulation tank 12 is prevented from flooding with water, even if the reservoir tank 10 is placed in a place or the like relatively closer to for instance a road surface with an ease of suffering water splashing during a traveling in a rainy weather or a traveling on a submerged road surface or the like.

Dependencies are inferred from the claim text.