Global Patent Index - EP 1317627 A1

EP 1317627 A1 2003-06-11 - 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

EP 1317627 A1 (DE)

Application

EP 01980376 A

Priority

  • DE 20015744 U
  • EP 0110536 W

Abstract (en)

[origin: WO0223046A1] The invention relates to a pump (12) for producing pressure and/or a partial vacuum, comprising a pump chamber having a high-pressure connection (16) and a low-pressure connection (14). Said pump also comprises two at least two-bladed rotors arranged on two parallel shafts which are offset in relation to each other in the pump chamber. During a rotation, said rotors roll over each other in a contactless manner, forming cells having internal compression. A cooling agent (21) is supplied to the pump chamber, said cooling agent supply being regulated according to the temperature on the side of the high-pressure connection (16).

IPC 1-7 (main, further and additional classification)

F04C 29/04; F04C 18/12

IPC 8 full level (invention and additional information)

F04C 18/073 (2006.01); F04C 28/00 (2006.01); F04C 29/04 (2006.01)

CPC (invention and additional information)

F04C 29/042 (2013.01); F04C 2270/19 (2013.01)

Citation (search report)

See references of WO 0223046A1

Designated contracting state (EPC)

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

EPO simple patent family

DE 20015744 U1 20010125; AT 278875 T 20041015; CA 2421988 A1 20030311; CN 1252389 C 20060419; CN 1455849 A 20031112; EP 1317627 A1 20030611; EP 1317627 B1 20041006; JP 2004509271 A 20040325; KR 20030032018 A 20030423; US 2004037727 A1 20040226; US 7077635 B2 20060718; WO 0223046 A1 20020321

INPADOC legal status


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