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:
Dec. 01, 2015
Filed:
Sep. 29, 2011
Takashi Inoue, Osaka, JP;
Masanori Masuda, Osaka, JP;
Hiromichi Ueno, Osaka, JP;
Mohammod Anwar Hossain, Osaka, JP;
Akira Matsuoka, Osaka, JP;
Takashi Inoue, Osaka, JP;
Masanori Masuda, Osaka, JP;
Hiromichi Ueno, Osaka, JP;
Mohammod Anwar Hossain, Osaka, JP;
Akira Matsuoka, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A screw compressor includes a casing having low and high pressure spaces, a screw rotor inserted in a cylinder part of the casing, and a slide valve disclosed in the cylinder part. The screw rotor has a plurality of helical grooves forming a compression chamber. The slide valve is moveable along an axis of the screw rotor and faces an outer periphery of the screw rotor to form a discharge port to communicating the compression chamber with the high pressure space. Fluid in the low pressure space is sucked into the compression chamber, compressed, and then discharged to the high-pressure space when the screw rotor rotates. The slide valve includes a sealing projection located on a back surface of the slide valve opposite to the screw rotor, and separating the low and high pressure spaces from each other when the sealing projection is in slidable contact with the casing.