EP 1340913 A2 20030903 - Gear pump
Title (en)
Gear pump
Title (de)
Zahnradmaschine
Title (fr)
Pompe à engrenages
Publication
Application
Priority
DE 10208408 A 20020227
Abstract (en)
The gear teeth of the annular gear machine are formed from gear points (4k,3k) and gear roots (4f,3f) formed from curves of the second or higher order, whereby the curves on their ends point tangentially to one another, and at least the curves which form the tooth points, or at least the curves which form the tooth roots, are cycloids. One of the tooth profile contours formed by the curves is gradually differentiable, and preferably twice differentiable by piece. An Independent claim is included for a gear set for an annular gear machine such as a pump or motor.
Abstract (de)
Zahnradverzahnung aus Zahnköpfen und Zahnfüßen, die von Kurven zweiter oder höherer Ordnung gebildet werden, wobei die Kurven an ihren Enden tangential aufeinander zu weisen und wenigstens die Kurven, die die Zahnköpfe (3k) bilden, oder wenigstens die Kurven, die die Zahnfüße (3f) bilden, keine Zykloiden sind. <IMAGE>
IPC 1-7
IPC 8 full level
F04C 2/10 (2006.01); F04C 2/08 (2006.01); F16H 55/08 (2006.01)
CPC (source: EP US)
F04C 2/084 (2013.01 - EP US); F04C 2/088 (2013.01 - EP US); F04C 2/102 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
EP 1340913 A2 20030903; EP 1340913 A3 20040728; EP 1340913 B1 20070905; AT E372462 T1 20070915; DE 10208408 A1 20030911; DE 50308093 D1 20071018; ES 2292867 T3 20080316; JP 2003254409 A 20030910; JP 4155841 B2 20080924; US 2004009085 A1 20040115; US 7427192 B2 20080923
DOCDB simple family (application)
EP 03003179 A 20030219; AT 03003179 T 20030219; DE 10208408 A 20020227; DE 50308093 T 20030219; ES 03003179 T 20030219; JP 2003050158 A 20030226; US 37559003 A 20030227