EP 1055819 A1 20001129 - Hydraulic gear pump
Title (en)
Hydraulic gear pump
Title (de)
Hydraulische Zahnradpumpe
Title (fr)
Pompe hydraulique à engrenage
Publication
Application
Priority
FR 9906801 A 19990528
Abstract (en)
The pump (1) consists of a housing (2) with suction (13) and pressure (14) channels, containing meshing driving and driven g (6, 8). At least one of the two gears is made from a material with vibration damping properties and a low friction coefficient, as a polymer or copolymer optionally modified with carbon filler and suitable for injection moulding.
IPC 1-7
IPC 8 full level
F04C 2/08 (2006.01)
CPC (source: EP)
F04C 2/084 (2013.01)
Citation (search report)
- [XY] US 5865239 A 19990202 - CARR CHARLES F [US]
- [XY] US 4583924 A 19860422 - ZENGLEIN WOLFGANG [DE], et al
- [X] US 5163824 A 19921117 - KANTNER HAROLD H [US]
- [X] PATENT ABSTRACTS OF JAPAN vol. 006, no. 256 (M - 179) 15 December 1982 (1982-12-15)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 08 30 June 1998 (1998-06-30)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30)
Designated contracting state (EPC)
DE GB IT SE
DOCDB simple family (publication)
EP 1055819 A1 20001129; EP 1055819 B1 20071024; DE 60036833 D1 20071206; DE 60036833 T2 20080731; FR 2794188 A1 20001201; FR 2794188 B1 20010810
DOCDB simple family (application)
EP 00401476 A 20000525; DE 60036833 T 20000525; FR 9906801 A 19990528