Patent ID: 8043420

Claim:
A fluid tank that contains a fluid, comprising: a tank main body that contains the fluid; and a bubble removing device that is provided to an inside of the tank main body and removes bubbles contained in the fluid, wherein: the tank main body comprises a partition that partitions the inside of the tank main body into at least two sides, and a delivery port through which the fluid is fed to an outside, the bubble removing device comprises an outflow port through which the fluid from which the bubbles have been removed flows to the inside of the tank main body and a bubble exhaust port through which the bubbles that have been removed are discharged to the inside of the tank main body, at least one subordinate return port, through which fluid not flowing through the bubble removing device returns to the inside of the tank main body, is provided adjacent to the bubble exhaust port relative to the partition, the delivery port is provided adjacent to the outflow port relative to the partition, and the partition partitions the inside of the tank main body into a side in which the outflow port and the delivery port are provided and a side in which the bubble exhaust port is provided.