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:
Sep. 28, 1993
Filed:
Nov. 12, 1991
Shimizu Construction Co., Ltd, Tokyo, JP;
Abstract
The present invention includes a heat storage tank (1) with a built-in suction chamber (2), a first heat source unit (R-1) and a first pump (P-1) for pumping up water from the high-temperature side (3) of said heat storage tank (1) and supplying the chilled water into said suction chamber (2), a low-temperature heat exchanger (5) for exchanging heat between water and an antifreeze solution, a second pump (P-2) for pumping up water from said suction chamber (2) and supplying the water chilled by the antifreeze solution in said low-temperature heat exchanger (5) to the low-temperature side (4) of said heat storage tank (1) and a second heat source unit (R-2) and a third pump (P-3) for cooling the antifreeze solution in an antifreeze solution tank (6) and feeding it to said low-temperature heat exchanger (5), and is designed to variably control the flow rates of said first and second pumps (P-1 and P-2) in dependence upon their suction temperatures.