(19)
(11) EP 3 009 676 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.05.2016 Bulletin 2016/18

(43) Date of publication A2:
20.04.2016 Bulletin 2016/16

(21) Application number: 15177060.9

(22) Date of filing: 16.07.2015
(51) International Patent Classification (IPC): 
F04B 17/04(2006.01)
F04B 35/04(2006.01)
F04B 39/06(2006.01)
 F04B 25/02(2006.01)
F04B 39/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA

(30) Priority: 26.09.2014 JP 2014197138

(71) Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Kobe-shi, Hyogo 651-8585 (JP)

(72) Inventors:
  • NAGURA, Kenji
    Takasago-shi, Hyogo 676-8670 (JP)
  • TAKAGI, Hitoshi
    Takasago-shi, Hyogo 676-8670 (JP)

(74) Representative: TBK 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) RECIPROCATING COMPRESSION APPARATUS


(57) To simplify a configuration for returning to uncompressed gas a lubricant separated from gas discharged from a compression chamber, while effectively using the lubricant , a reciprocating compression apparatus includes: a cylinder; a piston disposed in the cylinder to form a compression chamber therein; a drive section for generating drive force for reciprocating the piston in the cylinder; a separator for separating a lubricant from gas discharged from the compression chamber; and a return line for returning the lubricant separated in the separator to a return destination where gas containing the lubrication is present and a pressure is lower than that in the separator. The return line includes a lubrication cooling unit for cooling the lubricant flowing through the return line and a drive section cooling section for cooling the drive section with the lubricant which has been cooled in the lubricant cooling unit 35.







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