Global Patent Index - EP 1044333 A1

EP 1044333 A1 2000-10-18 - SUBMERSIBLE PUMP FOR USE IN A BORE HOLE

Title (en)

SUBMERSIBLE PUMP FOR USE IN A BORE HOLE

Title (de)

TAUCHPUMPENEINRICHTUNG ZUR VERWENDUNG IN EINEM BOHRLOCH

Title (fr)

DISPOSITIF A POMPE SUBMERSIBLE A UTILISER DANS UN TROU DE FORAGE

Publication

EP 1044333 A1 (DE)

Application

EP 99953919 A

Priority

  • DE 19848792 A
  • EP 9908021 W

Abstract (en)

[origin: DE19848792C1] The invention relates to submersible pump with a transmission (10) and a compensator (24). The transmission (10) comprises a transmission housing (12) filled with a lubricating fluid. Said transmission housing accommodates a driven input shaft (14, 102, 120) and an output shaft (16) for driving a pump. A transmission step (22) is provided which slows down the rotational movement of the input shaft (14, 102, 120). The compensator (24) adjusts the lubricating fluid pressure in the transmission housing (12) to the ambient pressure. The compensator (24) is arranged within the transmission housing (12) adjacent to the transmission stage (22) and distributes the heat building up at the transmission stage (22) across the lubricating fluid.

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

F04C 11/00; F04C 15/00

IPC 8 full level (invention and additional information)

E21B 43/12 (2006.01); F04B 47/02 (2006.01); F04C 11/00 (2006.01)

CPC (invention and additional information)

F04B 47/02 (2013.01); E21B 43/121 (2013.01); E21B 43/128 (2013.01); F04C 11/00 (2013.01)

Citation (search report)

See references of WO 0025026A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

DE 19848792 C1 20000504; BR 9906883 A 20001017; CA 2325047 A1 20000504; CA 2325047 C 20050322; CN 1287593 A 20010314; EP 1044333 A1 20001018; US 6357552 B1 20020319; WO 0025026 A1 20000504

INPADOC legal status


2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE FR GB

2003-01-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020501

2000-10-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000616

2000-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE