Global Patent Index - EP 1703080 A1

EP 1703080 A1 20060920 - Rotating machine

Title (en)

Rotating machine

Title (de)

Rotierende Maschine

Title (fr)

Machine tournante

Publication

EP 1703080 A1 20060920 (DE)

Application

EP 06110074 A 20060217

Priority

CH 3702005 A 20050303

Abstract (en)

The machine has a rotor shaft (19) which is rotated about an axis and includes a slot, where the slot has a slot bottom with an elliptic cross-sectional contour. A stator concentrically surrounds the rotor shaft at a distance, and a shaft seal is arranged between the stator and the shaft, where the seal comprises a continuous annular slot (21). A sealing component is provided for each of the annular slots.

IPC 8 full level

F01D 5/30 (2006.01); F01D 5/02 (2006.01); F01D 11/00 (2006.01)

CPC (source: EP US)

F01D 5/30 (2013.01 - EP US); F01D 5/303 (2013.01 - EP US); F01D 5/3038 (2013.01 - EP US); F01D 11/001 (2013.01 - EP US); F05D 2240/60 (2013.01 - EP US); F05D 2250/14 (2013.01 - EP US)

Citation (search report)

Citation (examination)

  • GB 2265671 A 19931006 - ROLLS ROYCE PLC [GB]
  • NISHITANI H ET AL: "STRESS CONCENTRATION FACTORS FOR THE TORSION OF SHAFTS WITH A CIRCUMFERENTIAL SEMI-ELLIPTIC GROOVE", NIHON KIKAI GAKKAI RONBUNSHU. B - TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS. B, NIHON KIKAI GAKKAI, TOKYO, JP, vol. 43, no. 374, 1 January 1977 (1977-01-01), pages 3642 - 3650, XP009081179, ISSN: 0387-5016
  • HEINZ NEUBER ED - HEINZ NEUBER: "Die Formzahldiagramme und ihre Anwendung (Passage)", 1 January 1985, KERBSPANNUNGSLEHRE - THEORIE DER SPANNUNGSKONZENTRATION - GENAUE BERECHNUNG DER FESTIGKEIT,, PAGE(S) 306 - 317, ISBN: 978-3-540-13558-6, XP007914650
  • RUSHTON K R: "STRESS CONCENTRATIONS ARISING IN THE TORSION OF GROOVED SHAFTS", INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, PERGAMON PRESS, OXFORD, GB, vol. 9, 1 January 1967 (1967-01-01), pages 697 - 705, XP007914662, ISSN: 0020-7403, DOI: 10.1016/0020-7403(67)90060-4
  • H OKUBO ET AL: "STRESS CONCENTRATION FACTORS OF SHALLOW GROOVES IN TORSION", JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, vol. 12, no. 1, 1 January 1977 (1977-01-01), pages 41 - 44, XP055005389, ISSN: 0309-3247
  • A KATO ET AL: "STRESS CONCENTRATION FACTORS OF GROOVED SHAFTS IN TORSION", JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, vol. 20, no. 3, 1 July 1985 (1985-07-01), pages 173 - 177, XP055005387, ISSN: 0309-3247
  • AKIRA KATO: "DESIGN FORMULA FOR GROOVED SHAFTS UNDER TORSION", JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, vol. 21, no. 4, 1 January 1986 (1986-01-01), pages 205 - 211, XP055005391, ISSN: 0309-3247
  • B ATZORI: "Cracks and notches: analogies and differences of the relevant stress distributions and practical consequences in fatigue limit predictions", INTERNATIONAL JOURNAL OF FATIGUE, vol. 23, no. 4, 1 April 2001 (2001-04-01), pages 355 - 362, XP055005396, ISSN: 0142-1123, DOI: 10.1016/S0142-1123(00)00107-9
  • SMITH E: "The elastic stress distribution near the root of an elliptically cylindrical notch subjected to mode III loadings", INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, OXFORD, GB, vol. 42, no. 17-18, 1 October 2004 (2004-10-01), pages 1831 - 1839, XP004581667, ISSN: 0020-7225, DOI: 10.1016/J.IJENGSCI.2004.03.010 & DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; January 1977 (1977-01-01), OKUBO H ET AL: "STRESS CONCENTRATION FACTORS OF SHALLOW GROOVES IN TORSION.", Database accession no. EIX77060005592 & DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; July 1985 (1985-07-01), KATO A ET AL: "STRESS CONCENTRATION FACTORS OF GROOVED SHAFTS IN TORSION.", Database accession no. EIX86050063103 & DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; April 2001 (2001-04-01), ATZORI B ET AL: "Cracks and notches: Analogies and differences of the relevant stress distributions and practical consequences in fatigue limit predictions", Database accession no. E2001205596370 & DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; October 2004 (2004-10-01), SMITH E: "The elastic stress distribution near the root of an elliptically cylindrical notch subjected to mode III loadings", Database accession no. E2004428409861

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 1703080 A1 20060920; US 2006197400 A1 20060907; US 7628581 B2 20091208

DOCDB simple family (application)

EP 06110074 A 20060217; US 27636006 A 20060227