EP 1317627 A1 20030611 - PUMP COMPRISING A WATER SUPPLY
Title (en)
PUMP COMPRISING A WATER SUPPLY
Title (de)
PUMPE MIT WASSEREINSPEISUNG
Title (fr)
POMPE A ALIMENTATION EN EAU
Publication
Application
Priority
- DE 20015744 U 20000912
- EP 0110536 W 20010912
Abstract (en)
[origin: US7077635B2] A pump ( 12 ) for generating pressure and/or negative pressure comprises a pump chamber having a high-pressure port ( 16 ) and a low-pressure port ( 14 ), and two at least two-blade rotors which are mounted in the pump chamber on two parallel shafts offset in relation to each other. The rotors roll off onto each other free of contact during rotation while forming cells with an internal compression. Provision is made for a supply of a cooling agent ( 21 ) into the pump chamber, the supply being closed-loop controlled depending on the temperature on the side of the high-pressure port ( 16 ).
IPC 1-7
IPC 8 full level
F04C 18/073 (2006.01); F04C 18/12 (2006.01); F04C 28/00 (2006.01); F04C 29/04 (2006.01)
CPC (source: EP KR US)
F04C 29/04 (2013.01 - KR); F04C 29/042 (2013.01 - EP US); F04C 2270/19 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2004037727 A1 20040226; US 7077635 B2 20060718; AT E278875 T1 20041015; CA 2421988 A1 20030311; CN 1252389 C 20060419; CN 1455849 A 20031112; DE 20015744 U1 20010125; DE 50104032 D1 20041111; EP 1317627 A1 20030611; EP 1317627 B1 20041006; JP 2004509271 A 20040325; KR 20030032018 A 20030423; WO 0223046 A1 20020321
DOCDB simple family (application)
US 36313003 A 20030306; AT 01980376 T 20010912; CA 2421988 A 20010912; CN 01815524 A 20010912; DE 20015744 U 20000912; DE 50104032 T 20010912; EP 0110536 W 20010912; EP 01980376 A 20010912; JP 2002527662 A 20010912; KR 20037003507 A 20030310