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:
Jun. 19, 2001
Filed:
Oct. 04, 1999
Takashi Ban, Kariya, JP;
Toshiro Fujii, Kariya, JP;
Takanori Okabe, Kariya, JP;
Yoshiyuki Nakane, Kariya, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Abstract
An air conditioning system,may include a compressor,having a driving chamber,, a cooling circuit,, a heating circuit,and a controller,. This system may release high pressure refrigerant from the compressor discharge port,into the compressor driving chamber,by means of the controller,. The controller,may include a selector,, a first refrigerant releasing means,and a second refrigerant releasing means,. The selector,connects the discharge port,and the driving chamber,by both the first and second refrigerant releasing means,when discharge pressure of the refrigerant has reached a predetermined high-pressure state during operation of the heating circuit,. When the discharge pressure of the refrigerant results an abnormal high pressure state during the operation of the heating circuit,, the high pressure refrigerant is released from the discharge port,into the driving chamber,not only by a single refrigerant releasing means,but by double refrigerant releasing means,. Therefore, the high pressure refrigerant can be swiftly released into the driving chamber,to increase the pressure in the driving chamber,and the necessary time for reducing the compressor discharge pressure can be minimized. Thus, the abnormal high discharge pressure can be quickly alleviated.