Title:
TRANSPORTATION VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/048527
Kind Code:
A1
Abstract:
This transportation vehicle comprises a cooling fan that is driven by a hydraulic motor, a heat exchanger that is disposed in the front part of the body of the vehicle, a fan control valve that controls the flow of hydraulic oil supplied to the hydraulic motor, a cylinder control valve that controls the flow of hydraulic oil supplied to a hydraulic cylinder, and a control device. The fan control valve and the cylinder control valve are connected in tandem to a center bypass line. The fan control valve has a neutral position at which a first hydraulic pump and the cylinder control valve are in communication and at which an intake port and discharge port of the hydraulic motor and a hydraulic oil tank are in communication, and a rotation position at which the first hydraulic pump and the intake port of the hydraulic motor are in communication and at which the discharge port of the hydraulic motor and the hydraulic oil tank are in communication.
Inventors:
SAKAGUCHI YOJI (JP)
SHIMOMURA HIROKAZU (JP)
SHIMOMURA HIROKAZU (JP)
Application Number:
PCT/JP2023/031019
Publication Date:
March 07, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
F01P7/04; B60P1/00; B60P1/16; F01P5/04; F01P7/02; F01P11/14; F02D29/04; F15B11/17; F15B21/045
Foreign References:
| JP2016118154A | 2016-06-30 | |||
| JP2005344766A | 2005-12-15 | |||
| JP2013079626A | 2013-05-02 | |||
| JP2019049238A | 2019-03-28 | |||
| JPH0539053A | 1993-02-19 | |||
| JP2014118902A | 2014-06-30 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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