EP 3134649 B1 20180404 - ROTOR PAIR FOR A COMPRESSOR BLOCK OF A SCREW MACHINE
Title (en)
ROTOR PAIR FOR A COMPRESSOR BLOCK OF A SCREW MACHINE
Title (de)
ROTORPAAR FÜR EINEN VERDICHTERBLOCK EINER SCHRAUBENMASCHINE
Title (fr)
PAIRE DE ROTORS POUR BLOC DE COMPRESSEUR D'UNE VISSEUSE
Publication
Application
Priority
- DE 102014105882 A 20140425
- EP 2015059070 W 20150427
Abstract (en)
[origin: WO2015162296A2] The invention relates to a rotor pair for a compressor block of a screw machine, wherein the rotor pair comprises a secondary rotor (NR) that rotates about a first axis (C1) and a main rotor (HR) that rotates about a second axis (C2), wherein the number of teeth (z2) of the main rotor (HR) is 3 and the number of teeth (z1) of the secondary rotor (NR) is 4. The relative profile depth of the secondary rotor (formula (I)) is at least 0.5, preferably at least 0.515, and at most 0.65, preferably at most 0.595. rk1 is an addendum circle radius drawn around the outer circumference of the secondary rotor (NR) and rf1 is a dedendum circle radius starting at the profile base of the secondary rotor, wherein the ratio of the axis distance (a) of the first axis (C1) from the second axis (C2) and the addendum circle radius rk1 (formula (II)) is at least 1.636, and at most 1.8, preferably at most 1.733.
IPC 8 full level
F04C 18/16 (2006.01); F04C 18/08 (2006.01)
CPC (source: CN EP US)
F01C 1/084 (2013.01 - EP); F01C 1/16 (2013.01 - EP); F04C 18/084 (2013.01 - CN EP US); F04C 18/16 (2013.01 - CN EP US); F04C 18/20 (2013.01 - US); F04C 2240/20 (2013.01 - US); F04C 2240/30 (2013.01 - US); F04C 2240/60 (2013.01 - US)
Citation (opposition)
Opponent : Atlas Copco Airpower N.V.
- FR 953057 A 19491130 - LJUNGSTROMS ANGTURBIN AB
- GB 627162 A 19490729 - LJUNGSTROMS ANGTURBIN AB
- US 3138110 A 19640623 - WHITFIELD JOSEPH E
- US 3275226 A 19660927 - WHITFIELD JOSEPH E
- US 3282495 A 19661101 - WALLS JOSEPH D
- CN 102352840 A 20120215 - SHAANXI FENGZE ELECTROMECHANICAL TECHNOLOGY CO LTD
- KR 100313638 B1 20011212 - KOREA AUTOMOTIVE TECH INST
- US 4350480 A 19820921 - BAMMERT KARL
Opponent : Firma ROTORCOMP VERDICHTER GmbH
- WO 9721926 A1 19970619 - BUSCH SA ATEL [CH], et al
- DE 1428265 A1 19690116 - SVENSKA ROTOR MASKINER AB
- US 2622787 A 19521223 - ROBERT NILSSON HANS
- DE 2911415 A1 19810115 - BAMMERT KARL
- DE 3230720 C2 19940505 - INGERSOLL RAND CO [US]
- DE 3246685 A1 19830630 - SULLAIR TECH AB [SE]
- DE 19539002 A1 19970424 - KUMWON CO [KR]
- RINDER, LAURENZ: SCHRAUBENVERDICHTER, 1979, pages 102 - 118
- HELPERTZ, MARKUS: "Methode zur stochastischen Optimierung von Schraubenrotorprofilen, Dortmund: Technische Universität Dortmund", DISSERTATION INSBES, 2003
- GRAFINGER , MANFRED, DIE COMPUTERUNTERSTÜTZE ENTWICKLUNG DER FLANKENPROFILE FÜR SONDERVERZAHNUNGEN VON SCHRAUBENKOM- PRESSOREN, 2010, ISBN: 978-3-8322-9215-7
Opponent : Ingersoll-Rand Company
- US 4350480 A 19820921 - BAMMERT KARL
- US 4350480 A 19820921 - BAMMERT KARL
- P.J 1986ET AL.: "Effect of Design Parameters on Oil-Flooded Screw Compressor Performance", INTERNATIONAL COMPRESSOR ENGINEERING CONFERENCE OF, August 1986 (1986-08-01), XP055545603
- "Screw Compressors - Mathematical Modelling and Performance Calculation", 2005, London, article NIKOLA STOSIC ET AL.: "Chapter 1, 2, 3, 4 , 5", pages: 14-16, 20-39, 64-71 - 72, 78-87, 93-96, XP055545625
- YU-REN WU ET AL.: "Rotor Profile Design for the Twin-Screw Compressor Based on the Normal-Rack Generation Method", THE JOURNAL OF MECHANICAL DESIGN, vol. 130, April 2008 (2008-04-01), XP055545643
- "Obtaining the Optimum Geometrical Parameters of a Refrigeration Helical Screw Compressor", INTERNATIONAL COMPRESSOR ENGINEERING CONFERENCE, 1992, XP055545652
- NIKOLA STOSIC ET AL.: "Review of Mathematical Models in Performance Calculation of Screw Compressors", INTERNATIONAL JOURNAL OF FLUID MACHINERY AND SYSTEMS, vol. 4, no. 2, 2011, pages 200 - 217, XP055545676
- YOU ET AL.: "Optimum Rotor Geometrical Parameters in Refrigeration Helical Twin Screw Compressors", INTERNATIONAL COMPRESSOR ENGINEERING CONFERENCE, 1996, pages 1 - 6, XP055545687
- S RANE ET AL.: "CFD grid generation and analysis of screw compressor with variable geometry rotors", CITY UNIVERSITY LONDON, 2013, London, pages 601 - 612, XP055545705
- A KOVACEVIC ET AL.: "Grid Generation for Screw Compressors with Variable Geometry Rotors", APCOM & ISCM, 2013, XP055545710
- W.S. LEE ET AL.: "Performance and Bearing Load Analysis of a Twin Screw Air Compressor", THE CHINESE JOURNAL OF MECHANICS, vol. 15, no. 2, 1999, pages 69 - 78, XP055545714
- YU-REN WU ET AL.: "Optimization design of an explicitly defined rack for the generation of rotors for twin-screw compressors", CHINESE JOURNAL OF MECHANICS, vol. 44, 1999, pages 66 - 82, XP055545726
- YU-REN WU ET AL.: "Improved rotor profiling based on the arbitrary sealing line for twin-screw compressors", MECHANISM AND MACHINE THEORY, vol. 43, 2008, Taiwan, pages 695 - 711, XP055545752
- D. ZAYTSEV ET AL.: "Profile generation method for twin screw compressor rotors based on the meshing line", INFANTE FERREIRA INTERNATIONAL JOURNAL OF REFRIGERATION, vol. 28, 2005, pages 744 - 755, XP055545784
- J.S. FLEMING ET AL.: "Optimisation Techniques Applied to the Design of a Refrigeration TiN Screw Compressor", INTERNATIONAL COMPRESSOR ENGINEERING CONFERENCE, 1994, pages 641 - 646, XP055545797
Designated contracting state (EPC)
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
DOCDB simple family (publication)
WO 2015162296 A2 20151029; WO 2015162296 A3 20151223; CN 106536933 A 20170322; CN 106536933 B 20190712; DE 102014105882 A1 20151112; DE 202015009525 U1 20180215; EP 3134649 A2 20170301; EP 3134649 B1 20180404; EP 3134649 B2 20221214; EP 3134649 B9 20190227; EP 3358189 A1 20180808; EP 3358189 B1 20231011; EP 3358189 B9 20240103; EP 3597920 A2 20200122; EP 3597920 A3 20210324; EP 3597920 B1 20230906; EP 4273403 A2 20231108; EP 4273403 A3 20240403; ES 2668317 T3 20180517; ES 2668317 T5 20230410; ES 2963314 T3 20240326; ES 2967470 T3 20240430; JP 2017514069 A 20170601; JP 6545787 B2 20190717; US 10400769 B2 20190903; US 11248606 B2 20220215; US 2017045050 A1 20170216; US 2018112663 A2 20180426; US 2020040894 A1 20200206; US 2022136504 A1 20220505; US 2024175436 A1 20240530
DOCDB simple family (application)
EP 2015059070 W 20150427; CN 201580022693 A 20150427; DE 102014105882 A 20140425; DE 202015009525 U 20150427; EP 15736405 A 20150427; EP 18163593 A 20150427; EP 19190907 A 20150427; EP 23198449 A 20150427; ES 15736405 T 20150427; ES 18163593 T 20150427; ES 19190907 T 20150427; JP 2017507082 A 20150427; US 201515306592 A 20150427; US 201916530002 A 20190802; US 202217577212 A 20220117; US 202318501260 A 20231103