EP 3870877 A2 20210901 - CURVILINEAR CIRCULAR-ARC TOOTH GEARS FOR USE IN EXTERNAL GEAR PUMPS
Title (en)
CURVILINEAR CIRCULAR-ARC TOOTH GEARS FOR USE IN EXTERNAL GEAR PUMPS
Title (de)
GEKRÜMMTE KREISBOGENFÖRMIGE ZAHNRADGETRIEBE ZUR VERWENDUNG IN EXTERNEN ZAHNRADPUMPEN
Title (fr)
ENGRENAGES À DENT EN ARC DE CERCLE CURVILIGNE DESTINÉS À ÊTRE UTILISÉS DANS DES POMPES À ENGRENAGES EXTERNES
Publication
Application
Priority
- US 201862749498 P 20181023
- US 2019057628 W 20191023
Abstract (en)
[origin: US2020124047A1] A curvilinear circular-arc-toothed (CCAT) gear for improving gear performance and reducing noise while avoiding axial loads common to helical gears includes an annular gear body; and a gear tooth having a hybrid gear tooth profile comprising one or more curves configured to provide a sweep of the gear tooth space by a mating gear tooth while maintaining smooth contact during gear mesh, and wherein the gear tooth extends along an axial length of the gear body along an axial profile.
IPC 8 full level
F16H 1/08 (2006.01); F04C 2/08 (2006.01); F16H 57/00 (2012.01)
CPC (source: EP US)
F04C 2/084 (2013.01 - EP US); F04C 2/18 (2013.01 - EP); F04C 15/0042 (2013.01 - US); F04C 15/0042 (2013.01 - EP); F04C 2230/10 (2013.01 - EP)
Citation (search report)
See references of WO 2020086699A2
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)
US 2020124047 A1 20200423; EP 3870877 A2 20210901; WO 2020086699 A2 20200430; WO 2020086699 A3 20200611
DOCDB simple family (application)
US 201916587144 A 20190930; EP 19875034 A 20191023; US 2019057628 W 20191023