Global Patent Index - EP 1407144 A1

EP 1407144 A1 20040414 - HIGH-PRESSURE PUMP

Title (en)

HIGH-PRESSURE PUMP

Title (de)

HOCHDRUCKPUMPE

Title (fr)

POMPE A HAUTE PRESSION

Publication

EP 1407144 A1 20040414 (EN)

Application

EP 02747772 A 20020621

Priority

  • NO 0200222 W 20020621
  • NO 20013173 A 20010622

Abstract (en)

[origin: WO03001062A1] A high-pressure pump (HP), especially developed for pumping of abrasive media like drilling mud and cement slurry, is disclosed. The pump comprises reciprocally acting diaphragm pumps (MP) that are driven by hydraulic power generated by a hydraulic power pack (not shown), and each diaphragm pump (MP) includes a respective pump chamber (A, B) and at least two valves (V1, V2 and V1', V2') on the pumping side. The hydraulic power pack (not shown) drives a hydraulic motor (HM) with a substantially constant displacement volume corresponding to twice the stroke volume of each pump chamber. The motor (HM) is in direct hydraulic communication (P) with each pump chamber (A, B) via respective pressure controlled flow regulating valves that are controlled by a synchronizer (CS) connected to the hydraulic motor (HM).

IPC 1-7

F04B 43/073; F04B 9/117

IPC 8 full level

F04B 15/02 (2006.01); F04B 43/073 (2006.01)

CPC (source: EP US)

F04B 15/02 (2013.01 - EP US); F04B 43/0736 (2013.01 - EP US)

Citation (search report)

See references of WO 03001062A1

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)

WO 03001062 A1 20030103; EP 1407144 A1 20040414; NO 20013173 D0 20010622; NO 20013173 L 20021223

DOCDB simple family (application)

NO 0200222 W 20020621; EP 02747772 A 20020621; NO 20013173 A 20010622