(19)
(11) EP 1 672 221 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.03.2007 Bulletin 2007/13

(43) Date of publication A2:
21.06.2006 Bulletin 2006/25

(21) Application number: 05026935.6

(22) Date of filing: 09.12.2005
(51) International Patent Classification (IPC): 
F04D 23/00(2006.01)
 F04D 29/08(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 15.12.2004 DE 202004019366 U

(71) Applicant: Gardner Denver Elmo Technology GmbH
97616 Bad Neustadt a.d. Saale (DE)

(72) Inventors:
  • Krines, Jürgen
    97645 Oberwaldbehrungen (DE)
  • Rjabchenko, Evgenij
    97616 Bad Neustadt (DE)
  • Seufert, Robert
    97654 Basthelm (DE)

(74) Representative: Rau, Albrecht et al
Patentanwälte Rau, Schneck & Hübner Königstrasse 2
90402 Nürnberg
90402 Nürnberg (DE)

   


(54) Compressor, in particular lateral channel compressor


(57) The compressor, in particular lateral channel compressor, comprises a casing member (2, 4) and an impeller (6) which is disposed therein rotatably about an axial axis of rotation and which is spaced from the casing member (2, 4) by a sealing gap (18). The sealing gap is sealed by means of a sealing arrangement which comprises an encircling sealing ring (20) and a spring element (34, 44, 46, 48) that forces the sealing ring (20) against a contact surface (22). The spring load that is applied by the spring element (34, 44, 46, 48) helps obtain automatic, dynamic adaptation to alternating spatial geometries during operation, for example upon temperature fluctuations, which ensures constantly good sealing effects.







Search report