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:
May. 26, 2026
Filed:
Dec. 31, 2020
Jiangsu Sujing Group Co., Ltd., Suzhou, CN;
Xiaoliang Tang, Suzhou, CN;
Dan Xiong, Suzhou, CN;
Hao Pan, Suzhou, CN;
Jun You, Suzhou, CN;
Danong Zhou, Suzhou, CN;
Qiang Kang, Suzhou, CN;
Xiaofei Song, Suzhou, CN;
Jiangsu Sujing Group Co., Ltd., Suzhou, CN;
Abstract
A constant-temperature water supply system employing a carbon dioxide heat pump includes a primary side loop, a secondary side water supply pipeline, a carbon dioxide heat pump water heater in the primary side loop, and a heat exchanger between the primary side loop and the secondary side water supply pipeline; the temperature of return water is detected and the temperature of a return water tank is detected, so even if the temperature of return water flowing out of a first heat exchange tube fluctuates, the return water can be input at a position in the return water tank having a close temperature, such that water in the return water tank is always in a stably layered state, and therefore allows for constant-temperature water supply.