公开(公告)号：US20190234402A1

公开(公告)日：2019-08-01

申请号：US16245910

申请日：2019-01-11

申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)

发明人： Tomohiro OOTSUKA ,  Ryosuke YAMASAKI

IPC分类号： F04B53/14 ,  F04B39/00 ,  F04B39/12 ,  F16J15/16 ,  F16J15/56

CPC分类号： F04B53/143 ,  F04B39/0005 ,  F04B39/0022 ,  F04B39/121 ,  F04B39/122 ,  F04B53/146 ,  F05D2240/55 ,  F16J15/164 ,  F16J15/56

摘要： This application discloses a reciprocating compressor including: a piston rod extending along a predetermined central axis that crosses an opening formed in an end of a cylinder, the piston rod being coupled to a piston and a crank mechanism to convey driving force from the crank mechanism to the piston; a rear head penetrated by the piston rod, the rear head closing the opening of the cylinder; and a rod ring portion configured to prevent a gas in the cylinder from leaking out from a gap between the rear head and the piston rod. The piston rod includes an outer circumferential surface on which an annular groove portion surrounding the central axis of the piston rod is formed. The rod ring portion includes an inner circumferential portion inserted into the groove portion, and an outer circumferential portion in sliding contact with an inner circumferential surface of the rear head.

公开(公告)号：US20190154022A1

公开(公告)日：2019-05-23

申请号：US16169189

申请日：2018-10-24

申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)

发明人： Kenji NAGURA ,  Takayuki FUKUDA ,  Ryosuke YAMASAKI ,  Tomohiro OOTSUKA

IPC分类号： F04B25/00 ,  F04B25/02 ,  F04B25/04 ,  F04B27/12 ,  F04B53/14

CPC分类号： F04B25/005 ,  F04B25/02 ,  F04B25/04 ,  F04B27/12 ,  F04B37/12 ,  F04B53/14 ,  F04B2201/0208 ,  F04B2201/0803

摘要： The present application discloses a compressor including a crank shaft, a first reciprocation converter, a first cylinder body, a first pressurizing portion, a second reciprocation converter, which is connected to the crank shaft with a phase different by 180 degrees from the first reciprocation converter, a second cylinder body, a second pressurizing portion, and a connecting portion configured to interconnect the compression chambers. The compression chambers are arranged so that a timing at which the gas is discharged from a specific compression chamber among the compression chambers becomes the same as a timing at which the discharged gas is suctioned into another compression chamber at a higher side by one stage than the specific compression chamber.