The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 1994
Filed:
Mar. 12, 1993
Tsukasa Mizuno, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
According to this invention, a liquid coolant circulating system includes a cooling tank, a discharge pump, a recovery pump, a heat exchanger, a detector, and a controller. The cooling tank is filled with a liquid coolant for immersing an object to be cooled. The discharge pump is arranged on an inlet side of the cooling tank and supplies a liquid coolant to the cooling tank at a predetermined flow rate. The recovery pump is arranged on an outlet side of the cooling tank and recovers a liquid coolant from the cooling tank. The heat exchanger is arranged on an outlet side of the recovery pump and cools a heated liquid coolant to a predetermined temperature and supplies a cooled liquid coolant to the discharge pump. The detector detects a value related to a pressure in the cooling tank. The controller controls the ability of the recovery pump in response to a detection signal from the detector.