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. 25, 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 includes an compressor,having a driving chamber,a suction port,and a discharge port,a first passage,that connects the discharge port,to the driving chamber,by opening a capacity control valve,a second passage,that connects the driving chamber,to the suction port,and a driving means,that can change the output discharge capacity of the compressor by changing the pressure in the driving chamber,The refrigerant can be released from the driving chamber,to the suction port,separately from the second passage,if the driving chamber reaches a predetermined high-pressure state. In such an air conditioning system, abnormally high pressure problems are overcome that utilizes a hot gas bypass heater. In particular, heating performance is improved, because high pressure refrigerant is not released from the hot gas bypass heater circuit into the cooling circuit. Further, an excessively high-pressure state in the driving chamber,can be prevented.