Title:
DEVICE FOR DETECTING FAILURE OF HYDRAULIC MOTOR, AND HYDRAULIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2002/050454
Kind Code:
A1
Abstract:
A device for detecting failures of a hydraulic motor comprises a hydraulic pump (3) driven by a motor (2), a hydraulic motor (1) driven by the fluid discharged from the hydraulic pump (3), a failure detector (35) for detecting malfunctions of the hydraulic motor (1), and alarm devices (30, 39, 40) adapted to issue alarms if a malfunction of the hydraulic motor (1) is detected by the failure detector (35).
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Inventors:
ICHIMURA KAZUHIRO (JP)
KODAKA KATSUAKI (JP)
YOSHIO SABUROU (JP)
KODAKA KATSUAKI (JP)
YOSHIO SABUROU (JP)
Application Number:
PCT/JP2000/009018
Publication Date:
June 27, 2002
Filing Date:
December 20, 2000
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
ICHIMURA KAZUHIRO (JP)
KODAKA KATSUAKI (JP)
YOSHIO SABUROU (JP)
ICHIMURA KAZUHIRO (JP)
KODAKA KATSUAKI (JP)
YOSHIO SABUROU (JP)
International Classes:
F03C1/40; F15B19/00; F16H61/40; F16H61/4192; (IPC1-7): F16H61/40; F15B11/02; F15B20/00
Foreign References:
| JPS58116853U | 1983-08-09 | |||
| JPH04238740A | 1992-08-26 | |||
| JPS5031378U | 1975-04-07 | |||
| JP2000170908A | 2000-06-23 | |||
| JPH09250510A | 1997-09-22 | |||
| JPH0637608U | 1994-05-20 | |||
| JP2000096604A | 2000-04-04 | |||
| JPS5016231A | 1975-02-20 | |||
| JP2000234535A | 2000-08-29 | |||
| JPH0596623U | 1993-12-27 |
Other References:
See also references of EP 1350990A4
Attorney, Agent or Firm:
Nagai, Fuyuki (Kasumigaseki Chiyoda-ku Tokyo, JP)
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