EP 1574714 A3 20060503 - Pump unit
Title (en)
Pump unit
Title (de)
Pumpenaggregat
Title (fr)
Unité de pompage
Publication
Application
Priority
DE 102004013053 A 20040310
Abstract (en)
[origin: EP1574714A2] The electrically-driven pump assembly (10) for hydraulic fluid has pump modules (14,16) at either end of a shaft (30) carrying the rotor (15). The shaft is carried on two bearings (32). The stator (13) of the electric motor (12) is surrounded by a housing (22) which accommodates the two pump modules. The stator support tube fits concentrically inside an outer housing (18). The hydraulic fluid enters through a channel (58) in the first end (26) of the pump assembly. The first pump assembly drives the fluid through the annular channel (20) between the two housings toward the second pump. Fluid can flow through the motor to cool it.
IPC 8 full level
F04B 53/08 (2006.01); F04B 17/03 (2006.01); F04B 23/02 (2006.01); F04B 53/00 (2006.01); F04B 53/16 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP)
F04B 17/03 (2013.01); F04B 23/021 (2013.01); F04B 53/001 (2013.01); F04B 53/08 (2013.01)
Citation (search report)
- [X] EP 0661793 A1 19950705 - EBARA CORP [JP]
- [X] US 4627793 A 19861209 - KUROYANAGI MASATOSHI [JP], et al
- [X] US 4523899 A 19850618 - OUCHI KIYOSHI [JP]
- [AD] EP 1179677 A1 20020213 - YUKEN KOGYO CO LTD [JP]
- [A] EP 0857871 A1 19980812 - HOERBIGER GMBH [DE]
- [A] DE 19859340 A1 20000706 - MANNESMANN VDO AG [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1574714 A2 20050914; EP 1574714 A3 20060503; EP 1574714 B1 20080123; AT E384874 T1 20080215; DE 102004013053 A1 20050929; DE 102004013053 B4 20060727; DE 502005002603 D1 20080313
DOCDB simple family (application)
EP 05005006 A 20050308; AT 05005006 T 20050308; DE 102004013053 A 20040310; DE 502005002603 T 20050308