(19)
(11) EP 2 031 249 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.03.2014 Bulletin 2014/11

(43) Date of publication A2:
04.03.2009 Bulletin 2009/10

(21) Application number: 08014771.3

(22) Date of filing: 20.08.2008
(51) International Patent Classification (IPC): 
F04C 18/16(2006.01)
 F04C 28/12(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 30.08.2007 JP 2007223471

(71) Applicant: Hitachi Appliances, Inc.
Minato-ku Tokyo (JP)

(72) Inventors:
  • Yonemoto, Ryuichiro
    Shizuoka-shi Shizuoka (JP)
  • Iizuka, Yasuaki
    Shizuoka-shi Shizuoka (JP)
  • Urashin, Masayuki
    Shizuoka-shi Shizuoka (JP)

(74) Representative: MERH-IP Matias Erny Reichl Hoffmann 
Paul-Heyse-Strasse 29
80336 München
80336 München (DE)

   


(54) Capacity control device for screw compressor


(57) A capacity control device for a screw compressor comprising a capacity control valve (7), a piston rod (18) connected to the capacity control valve (7), a piston (17), and a cylinder (16) that guides the piston (17) slidably, and wherein a guide body (24) for permitting and guiding inclined movements of the piston rod (18) is provided on that end wall (22) toward the piston rod (18), which forms the cylinder (16).







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Search report