Title:
HYDRAULIC MOTOR DRIVING DEVICE
Document Type and Number:
Japanese Patent JP2009162350
Kind Code:
A
Abstract:
To accurately control the drive of a hydraulic motor without causing the enlargement of a device.
This hydraulic motor driving device intervenes at an oil supply passage 42 from a hydraulic pump 20 to a hydraulic fan motor 10 and includes a direction switching valve 30 controlled by an EPC valve 50. An output pressure port 53 of the EPC valve 50 is connected to a control pressure chamber 57 of the direction switching valve 30. The direction switching valve 30 is operated according to a flow rate of oil discharged from the output pressure port 53 of the EPC valve 50.
More Like This:
| JPS5817121 | [Title of the device] Luda Isuzuchi |
Inventors:
MARUTA KAZUHIRO
OGASAWARA KENICHI
ONO MUTSUMI
OGASAWARA KENICHI
ONO MUTSUMI
Application Number:
JP2008002353A
Publication Date:
July 23, 2009
Filing Date:
January 09, 2008
Export Citation:
Assignee:
KOMATSU MFG CO LTD
International Classes:
F15B11/04; E02F9/00; E02F9/22; F16H57/04; F16H61/40; F16H61/4061; F16H61/438; F16H59/68
Domestic Patent References:
| JP2004251124A | 2004-09-09 | |||
| JP2003148411A | 2003-05-21 | |||
| JP2001221316A | 2001-08-17 |
Attorney, Agent or Firm:
Hiroaki Sakai