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:
Jan. 14, 2003
Filed:
Feb. 09, 2001
Eiichi Sasada, Tokyo, JP;
Tetsuya Aoki, Tokyo, JP;
Fujikoki Corporation, Tokyo, JP;
Abstract
The four-way selector valve relating to the invention basically comprises a motor which has a stator and a rotor, a case, and a main body including a main valve and a valve seat, both of which are arranged in a valve chest within the case. The valve seat has a suction pressure passage and a discharge pressure passage, which lead to a suction port of a compressor and a discharge port thereof, respectively, and two passage holes which lead to indoor and outdoor heat exchangers, respectively. The main valve has a connecting part which selectively leads to one of the suction pressure passage and the two passage holes, and a pressure equalization orifice which links the connecting part and the valve chest. A rotor sleeve, which comprises the rotor, is equipped with an auxiliary valve which opens or closes the pressure equalization orifice in order to transfer pressure, and an operating pin which moves the position of the main valve. The rotor of the motor rotates the auxiliary valve on the main valve and slides the main valve on the valve seat via the operating pin.