Global Patent Index - EP 1039135 A3

EP 1039135 A3 20011219 - Internal gear pump with sealings incorporated in the teeth

Title (en)

Internal gear pump with sealings incorporated in the teeth

Title (de)

Sichellose Innenzahnradpumpe mit in die Zahnköpfe eingesetzten Dichtelementen

Title (fr)

Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents

Publication

EP 1039135 A3 20011219 (DE)

Application

EP 99124717 A 19991211

Priority

DE 19913752 A 19990326

Abstract (en)

[origin: EP1039135A2] The pump has an internal geared hollow wheel (6) with a meshing pinion (5) in a housing (1). Each tooth tip (14) of the wheel has a profiled groove for a sealing element (30) for sliding seal with the tooth tips of the pinion. The sealing elements are of metal, esp. of steel.

IPC 1-7

F04C 2/10

IPC 8 full level

F04C 2/08 (2006.01); F04C 2/10 (2006.01); F04C 15/00 (2006.01)

CPC (source: EP)

F04C 2/084 (2013.01); F04C 2/102 (2013.01); F04C 15/0019 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 1039135 A2 20000927; EP 1039135 A3 20011219; KR 20000062610 A 20001025

DOCDB simple family (application)

EP 99124717 A 19991211; KR 20000008807 A 20000223