Title:
HYDRAULIC DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/004156
Kind Code:
A1
Abstract:
This hydraulic drive system is provided with: a hydraulic motor; a bi-directional pump connected to the hydraulic motor so as to form a first closed loop and driven by an engine to supply hydraulic oil to the hydraulic motor; a first regulator for regulating the tilt angle of the bi-directional pump; a bi-directional motor connected to the hydraulic motor so as to form a second closed loop and driven by hydraulic oil discharged from the hydraulic motor when the hydraulic motor is operated to reduce the speed thereof; a flywheel rotated by the bi-directional motor; a second regulator for regulating the tilt angle of the bi-directional motor; and a control device for controlling the first regulator and the second regulator on the basis of operation on the hydraulic motor.
Inventors:
NISHIDA SHINJI
KUSUMOTO RYOSUKE
KATO TAKEHISA
NAKAYAMA YUKI
KUSUMOTO RYOSUKE
KATO TAKEHISA
NAKAYAMA YUKI
Application Number:
PCT/JP2018/024084
Publication Date:
January 03, 2019
Filing Date:
June 26, 2018
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
E02F9/22; F15B21/14
Foreign References:
| US20160305455A1 | 2016-10-20 | |||
| JP2004324742A | 2004-11-18 | |||
| JPS5380702A | 1978-07-17 | |||
| US20160333903A1 | 2016-11-17 | |||
| JP2016080106A | 2016-05-16 | |||
| JP2004324743A | 2004-11-18 | |||
| JP2003130006A | 2003-05-08 | |||
| JP2015025475A | 2015-02-05 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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