US Patent No. 10,881,033

COOLING DEVICE


Patent No. 10,881,033
Issue Date December 29, 2020
Title Cooling Device
Inventorship Takeshi Sawada, Yamanashi (JP)
Fuyuki Ueno, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 10,881,033

1. A cooling device, comprising:a casing;
a fan configured to blow gas to a target object disposed on a downstream side of the fan by rotation of a rotator;
a bypass structure provided in the casing so as to avoid the rotator and configured to allow a liquid to flow, at least, from an upstream side of the fan to the downstream side of the fan;
a gutter provided above the rotator and configured to lead the liquid to the bypass structure; and
a gas-liquid separation mechanism arranged on the upstream side of the fan and configured to separate the liquid contained in the gas;
wherein
the gas-liquid separation mechanism contains therein a first space having a structure configured to separate the gas and the liquid from each other, and a second space communicating with the first space and configured to supply the gas having passed through the first space, to the fan,
the gutter is arranged in the second space,
the second space is free of any structure configured to separate the gas and the liquid from each other,
the first space and the second space fill substantially an entire inner space of the gas-liquid separation mechanism from an inlet to the gutter, and
the gutter is provided at an end of a gas flow flowing within the gas-liquid separation mechanism.