Global patent index - EP 0828941 B1

EP 0828941 B1 2001-01-31 - VARIABLE-DISPLACEMENT SCREW-TYPE COMPRESSOR

Title (en)

VARIABLE-DISPLACEMENT SCREW-TYPE COMPRESSOR

Title (de)

SCHRAUBENVERDICHTER MIT EINSTELLBAREM FÖRDERVOLUMEN

Title (fr)

COMPRESSEUR A VIS, A VOLUME DEPLACE REGLABLE

Publication

EP 0828941 B1 (DE)

Application

EP 96916080 A

Priority

  • DE 19519262 A
  • EP 9602077 W

Abstract (en)

[origin: DE19519262A1] The invention relates to a variable-displacement screw-type compressor with at least one main rotor and at least one subsidiary rotor which are fitted in the same housing (2), mesh together and convey a medium to be compressed from an inlet pipe (62) to an outlet pipe, in which the inlet pipe (62) is bounded by at least one housing segment (38, 40, 42, 44) fitted to slide in the housing (12) which follows the shape of the rotor casings on its sealing side (48, 50, 52, 54) facing the rotors. To provide a screw-type compressor which is hard-wearing, highly efficient and simple to build, according to the invention at least one housing segment (38, 40, 42, 44) is guided and movable in a shaft transversely to the rotor axes (26, 28).

IPC 1-7 (main, further and additional classification)

F04C 29/10; F04C 18/16

IPC 8 full level (invention and additional information)

F04C 18/16 (2006.01); F04C 28/10 (2006.01); F04C 28/12 (2006.01); F04C 28/20 (2006.01); F04C 28/26 (2006.01); F04C 29/00 (2006.01)

CPC (invention and additional information)

F04C 28/12 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

EPO simple patent family

DE 19519262 A1 19961205; DE 19519262 C2 19970828; AT 199032 T 20010215; CN 1081756 C 20020327; CN 1185823 A 19980624; EP 0828941 A1 19980318; EP 0828941 B1 20010131; JP H11505912 A 19990525; KR 100426506 B1 20040630; RU 2154194 C2 20000810; US 6022203 A 20000208; WO 9638670 A1 19961205

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