EP 3187734 A1 20170705 - SCREW ROTOR
Title (en)
SCREW ROTOR
Title (de)
SCHRAUBENROTOR
Title (fr)
ROTOR À VIS
Publication
Application
Priority
- JP 2014173541 A 20140828
- JP 2015070232 W 20150715
Abstract (en)
In a screw rotor, three points of a main trailing-side lobe tip point B1, a gate leading-side lobe tip point D2', and an intersection point Q of a surface of a casing 3 facing a main rotor 10 and a surface of the casing 3 facing a gate rotor 20 coincide with each other at a specific rotation phase of the rotor. A main trailing lobe face is formed by an epicycloid curve traced by the gate leading-side lobe tip point D2' in accordance with rotation phase advancement from the specific rotation phase, and a gate leading lobe face is formed by an epicycloid curve traced by the main trailing-side lobe tip point B1 in accordance with rotation phase advancement from the specific rotation phase.
IPC 8 full level
F04C 18/16 (2006.01)
CPC (source: EP)
F04C 18/084 (2013.01); F04C 18/16 (2013.01)
Citation (search report)
See references of WO 2016031413A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3187734 A1 20170705; JP 6273661 B2 20180207; JP WO2016031413 A1 20170427; WO 2016031413 A1 20160303
DOCDB simple family (application)
EP 15837048 A 20150715; JP 2015070232 W 20150715; JP 2016545044 A 20150715