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. 31, 2016
Filed:
Dec. 22, 2010
Kazuhiko Mihara, Tatebayashi, JP;
Hidetaka Sasaki, Oizumi-machi, JP;
Setsu Hasegawa, Oizumi-machi, JP;
Ken Kawakubo, Oizumi-machi, JP;
Masahisa Otake, Oizumi-machi, JP;
Kazuhiko Mihara, Tatebayashi, JP;
Hidetaka Sasaki, Oizumi-machi, JP;
Setsu Hasegawa, Oizumi-machi, JP;
Ken Kawakubo, Oizumi-machi, JP;
Masahisa Otake, Oizumi-machi, JP;
Abstract
An object of the present invention is to keep an appropriate amount of a refrigerant to be circulated through a refrigerant circuit and prevent an overload operation of compression means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side. The refrigerating apparatus which obtains the supercritical pressure on the high pressure side comprises a refrigerant amount regulation tank connected to the refrigerant circuit on the high pressure side via a communicating circuit; a communicating circuit which connects the upper part of this tank to a medium pressure region of the refrigerant circuit; a communicating circuit which connects the lower part of the tank to the medium pressure region of the refrigerant circuit; an electromotive expansion valve of the communicating circuit; an electromagnetic valve of the communicating circuit; an electromagnetic valve of the communicating circuit; and control means for controlling these valves to collect a refrigerant circulated through the refrigerant circuit in the tank and discharging the refrigerant to the refrigerant circuit.