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:
Apr. 04, 2000
Filed:
Aug. 06, 1998
Noboru Tsuboi, Hyogo, JP;
Katsuyuki Suzuki, Hyogo, JP;
Hideo Utsuno, Kobe, JP;
Yoshitaka Morisawa, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Kobelco Research Institute, Inc., Kobe, JP;
Abstract
An oil-cooled type screw compressor capable of improving the oil separating efficiency is provided. The oil-cooled type screw compressor includes an outer casing 21 which encloses at least a bearing portion on a discharge port 12 side of a compressor body 1 in an isolated state from a suction port 11, an oil separating element 22 which comprises an inside portion 22A and an outside portion 22B partitioned from each other by an annular partition plate 26 and which bisects the inside space of the outer casing into a space 27 on the compressor body side and a space 28 on the side opposite to the compressor body, a first discharge pipe 23 which conducts a compressed gas discharged together with oil from the discharge port 12 to the inside portion 22A, a shielding plate 24 for isolating the inside portion 22A from the compressor body-side space 27, and a second discharge pipe 25 extending through both the oil separating element 22 and the portion of the casing 21 which covers the space 28 on the side opposite to the compressor body, to conduct the compressed gas which has entered the compressor body-side space 27 from the opposite-side space 28 to the exterior.