Pump torque controller of hydraulic working machine

Details for Australian Patent Application No. 2006317096 (hide)

Owner Hitachi Construction Machinery Co., Ltd.

Inventors Kakizawa, Kenji; Yasuda, Gen

Agent Griffith Hack

Pub. Number AU-B-2006317096

PCT Pub. Number WO2007/060948

Priority 2005-340459 25.11.05 JP

Filing date 21 November 2006

Wipo publication date 31 May 2007

Acceptance publication date 9 June 2011

International Classifications

F15B 11/00 (2006.01) Servomotor systems without provision for follow-up action

E02F 9/22 (2006.01) Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups - Hydraulic or pneumatic drives

F02D 29/04 (2006.01) Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto - peculiar to engines driving pumps

F04B 49/00 (2006.01) Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups

Event Publications

15 May 2008 PCT application entered the National Phase

  PCT publication WO2007/060948 Priority application(s): WO2007/060948

9 June 2011 Application Accepted

  Published as AU-B-2006317096

6 October 2011 Standard Patent Sealed

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