Nec Corporation

Nec Platforms, Ltd.

Tadao Hosaka

Tetsuya Nagata

Hiroyuki Tsuzuki

Shinji Mine

Shinya Akamatsu

Hideo Sue

Masanori Sato

Minoru Yoshikawa

Masaki Chiba

Arihiro Matsunaga

Kenichi Inaba

Akira Shoujiguchi

Shunsuke Fujii

In order to supply a refrigerant to multiple-stage heat receivers equally while saving space, a refrigerant distribution device to distribute a refrigerant supplied from the upper stream according to the present invention includes a main body including a side wall part, an upper face part and a bottom face part, an upstream pipe provided on the upper face part in a manner communicating with an inside of the main body, a downstream pipe provided in a state partially inserted inside the main body via an under face hole part provided in the bottom face part, a tributary pipe provided in the side wall part or the bottom face part in a manner communicating with the inside of the main body, and a refrigerant direction changing means provided between the upstream pipe and the downstream pipe.

Refrigerant distribution device and cooling apparatus

A refrigerant supply device with a small lateral width and a capacity to supply refrigerant evenly among heat receivers disposed in multiple tiers needs to be provided. A refrigerant supply device for distributing, by force of gravity, liquid phase refrigerant to heat receivers disposed in a plurality of tiers includes: a first conduit for supplying the refrigerant to the heat receivers; a second conduit provided in parallel with the first conduit; a first aperture provided in the first conduit for supplying the refrigerant to one of the heat receivers; a first blocking means provided below the first aperture for blocking the first conduit; a first communication opening provided above the first aperture and communicating the first conduit and the second conduit; a second communication opening provided below the first blocking means and communicating the first conduit and the second conduit; and a second blocking means provided below the second communication opening for blocking the second conduit.

Refrigerant supply device, cooling device, and cooling system

Computer

A cooling apparatus for cooling a given device which is incorporated in a computer or similar electronic equipment and generates heat by circulating a liquid coolant through the device of interest. A secondary cooling liquid exchanges heat with a primary cooling liquid in a heat exchanger and then flows into the device of the equipment. When the difference in temperature between the secondary cooling liquid and the interior of the equipment decreases beyond a predetermined value, a heat exchanging mechanism is caused to stop operating. On the increase of the difference in temperature beyond the predetermined value, the heat exchanging mechanism is caused to begin operating again. Alternatively, the operation of a secondary cooling liquid feeding mechanism may be interrupted and then set up again on the basis for the above-mentioned difference in temperature.

Cooling apparatus for electronic equipment with fail-safe condensation

Growing community of inventors

Yamanashi, Japan

Tadao Hosaka