Oil tank

摘要

An oil tank has return oil from a hydraulic circuit diffused onto a surface of oil stored in a tank body, and thereby the return oil is prevented from going deep in the oil, so that a hydraulic pump is prevented from sucking oil containing air bubbles. The oil tank includes: an intake port provided in the vicinity of a bottom of the tank body and connected to the hydraulic pump of a hydraulic circuit; and an return oil inlet connected to a return pipe of the hydraulic circuit through which the return oil enters the tank body. In the tank body, a container adapted to hold the return oil is provided. The container is configured so that the return oil inlet opens in the vicinity of the bottom of the container.

主权项

1. An oil tank comprising:
an intake port which is provided in the vicinity of a bottom of a tank body adapted to hold oil and which is connected to a hydraulic pump adapted to supply hydraulic pressure oil to a hydraulic circuit; and a return oil inlet which is connected to a return pipe of the hydraulic circuit and through which return oil from the hydraulic circuit is discharged to the tank body, wherein the oil held in the tank body structures an oil surface and wherein a container adapted to hold the return oil is provided in the tank body, the container including:
a bottom formed at the bottom of the tank body;an open end positioned above the oil surface;the return oil inlet which opens in the vicinity of the bottom of the container, anda flow adjustment wing arranged adjacent to the open end in a plan view, the flow adjustment wing being provided below and parallel to the oil surface.