EP 0301116 B1 19910703 - SUBMERGIBLE ELECTROHYDRAULIC DRIVE UNIT FOR HAMMERING AND SERVICING DEVICES IN UNDER WATER OPERATION
Title (en)
SUBMERGIBLE ELECTROHYDRAULIC DRIVE UNIT FOR HAMMERING AND SERVICING DEVICES IN UNDER WATER OPERATION
Publication
Application
Priority
EP 87110894 A 19870728
Abstract (en)
[origin: JPS6436823A] PURPOSE: To perform economical utilization throughout a wide range by a method wherein a plurality of pump units combined with each other for use are disposed between the inner and outer walls of a casing having a thoroughgoing central receiving space to contain a necessary working device. CONSTITUTION: Annular upper and lower mounting plates 4 and 5 are arranged in a casing M having a thoroughgoing central receiving space to contain a necessary working device, and an outer wall 2 to intercouple the mounting plates and an inner wall 3 to surround the receiving space 1 are arranged. A plurality of pump units 10 are disposed between the inner and outer walls 3 and 2 and in parallel to the receiving space 1, and submergible electric motor 12 is coupled to a hydraulic pump 13. The pump units 10 are individually or in plurality or wholly jointly driven. This constitution meets a wide range of demands in combination with various underwater working devices.
IPC 1-7
IPC 8 full level
E02D 7/06 (2006.01); E02D 7/02 (2006.01); E02D 7/10 (2006.01); E02D 7/18 (2006.01); E02D 7/26 (2006.01); E02D 13/00 (2006.01); E02D 13/10 (2006.01); E21B 7/124 (2006.01)
CPC (source: EP US)
E02D 7/02 (2013.01 - EP US); E02D 7/26 (2013.01 - EP US); E02D 13/10 (2013.01 - EP US); E21B 7/124 (2013.01 - EP US); Y10S 173/01 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0301116 A1 19890201; EP 0301116 B1 19910703; DE 3771217 D1 19910808; JP H0678621 B2 19941005; JP S6436823 A 19890207; NO 168125 B 19911007; NO 168125 C 19920115; NO 873379 D0 19870812; NO 873379 L 19890130; US 4817734 A 19890404
DOCDB simple family (application)
EP 87110894 A 19870728; DE 3771217 T 19870728; JP 25452487 A 19871007; NO 873379 A 19870812; US 13390487 A 19871215