Diagnosesystem für eine Hydraulische Maschine, eine Hydraulische Maschine, eine Windturbinenstromerzeugungsvorrichtung und eine Verfahren zur Diagnose einer Hydraulischen Maschine

Details

Veröffentlichungs-Nr.

EP3104005

Aktenzeichen

EP16154339

Anmeldetag

4. Februar 2016

Veröffentlichung

11. August 2021

Erteilung

11. August 2021

Rechtsraum

EP

IPC

F04B1/0408F03D17/00F03C1/28F03D9/28F04B17/02F04B49/22F04B53/10F04B51/00

Abstract

A diagnosis system for a hydraulic machine including a rotation shaft, a cylinder, a piston forming a working chamber together with the cylinder, and a high-pressure valve and a low-pressure valve provided for the working chamber, is configured to perform conversion between rotational motion of the rotation shaft and reciprocating motion of the piston. The diagnosis system includes a pressure sensor for measuring a pressure in the working chamber and a first abnormality determination part for determining an abnormality of the hydraulic machine on the basis of a measurement result obtained by the pressure sensor. The high-pressure valve or the low-pressure valve is configured such that a valve body is movable, by supply control of excitation current, between a normal position where the valve is not supplied with the excitation current and an excitation position where supplied with the excitation current. The first abnormality determination part is configured to determine an abnormality of the hydraulic machine on the basis of the measurement result obtained by the pressure sensor when the valve is not supplied with the excitation current.

Anmelder

Firma

Mitsubishi Heavy Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete