Title:
HYDRAULIC BREAKER, BUFFER FLUID MONITORING SYSTEM AND BUFFER FLUID MONITORING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/147492
Kind Code:
A1
Abstract:
A hydraulic breaker according to one embodiment of the present invention includes: a cylinder having a plurality of hydraulic ports; a piston for reciprocating in the cylinder by hydraulic pressure of hydraulic oil flowing in or out through the hydraulic port; a buffering part for buffering the movement of the piston using a buffer fluid; a pressure sensor for sensing pressure information on the buffering part when the piston is moved on the buffering part; and a transmission module for outputting the pressure information to a controller which determines whether the buffer fluid leaks from the buffering part on the basis of the sensed pressure information and performs a warning operation when it is determined that the buffer fluid has leaked.
Inventors:
LEE WON HAE (KR)
JOO JIN MOO (KR)
JOO JIN MOO (KR)
Application Number:
PCT/KR2017/001777
Publication Date:
August 16, 2018
Filing Date:
February 17, 2017
Export Citation:
Assignee:
DAEMO ENG CO LTD (KR)
International Classes:
E02F3/96; E02F5/30; E02F9/22; E02F9/24; E02F9/26
Foreign References:
| KR20040095120A | 2004-11-12 | |||
| JPH1025769A | 1998-01-27 | |||
| JPH055603A | 1993-01-14 | |||
| JP2544726Y2 | 1997-08-20 | |||
| KR20160078716A | 2016-07-05 |
Attorney, Agent or Firm:
IPS PATENT FIRM (KR)
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