Global Patent Index - EP 0194837 A3

EP 0194837 A3 19880810 - GAS PIPE PUMPING SYSTEM

Title (en)

GAS PIPE PUMPING SYSTEM

Publication

EP 0194837 A3 19880810 (EN)

Application

EP 86301698 A 19860310

Priority

GB 8506628 A 19850314

Abstract (en)

[origin: EP0194837A2] The system has a motor terminal box (2) secured to the exterior of a pipe (1) which may be anywhere between 10 and 40 inches in diameter. A squirrel cage induction motor (4) is located coaxially in the pipe on support webs (7) with the flow of gas taking place through the annular space (8) between the motor and the pipe. The motor rotor (13) is supported on bearings (9,10) supplied with oil, from a reservoir, by a pump (11) on downstream end of the motor shaft. Upstream, the motor shaft extension carries the rotor of a multi-stage axial compressor (14) on a thrust bearing (15) and front bearing (16). If required, a gearbox may be interposed between motor and compressor.

IPC 1-7

F04D 25/02; F04D 29/60; F17D 1/07

IPC 8 full level

F04D 25/02 (2006.01); F17D 1/07 (2006.01)

CPC (source: EP)

F04D 25/02 (2013.01); F17D 1/07 (2013.01)

Citation (search report)

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0194837 A2 19860917; EP 0194837 A3 19880810; GB 8506628 D0 19850417

DOCDB simple family (application)

EP 86301698 A 19860310; GB 8506628 A 19850314