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:
Oct. 31, 2006
Filed:
Mar. 22, 2005
Daisuke Morisawa, Tokyo, JP;
Toshikio Okii, Tokyo, JP;
Daisuke Morisawa, Tokyo, JP;
Toshikio Okii, Tokyo, JP;
Fujikoki Corporation, Tokyo, JP;
Abstract
A control valve for a compressor with a discharge port, a chamber port, a side chamber port, an intake port, a feed hole between the discharge port and the chamber port, an extraction hole between the side chamber port and the intake port; a feed valve controls the feed hole; an extraction valve controls the extraction hole; and a solenoid is capable of actuating the feed and extraction valves. In a first status, a minimum flow rate is secured at the extraction valve with the feed valve being fully opened. In a second status, the feed valve is fully closed and the extraction valve is fully opened. In an intermediate status, the feed valve is moved from a nearly closed state to a fully closed state depending on the value of control current. At the extraction valve, a predetermined flow rate is effectuated irrespective of its opening degree.