Title:
CONSTRUCTION MACHINE
Document Type and Number:
Japanese Patent JP2005256535
Kind Code:
A
Abstract:
To reduce an equipment cost and to enhance energy conversion efficiency by simplifying the structure of a part for converting gas pressure into hydraulic pressure.
A part of compressed natural gas stored in a gas cylinder 1 is branched from the inlet side of a pressure reducing valve 2 and led to a first pressure chamber 13 of a pressure transducer 10, and a piston 12 is pushed in by the gas pressure to pressurize an operating fluid in a second pressure chamber 14. The operating fluid pressure is taken outside as a primary hydraulic pressure source of a remote control valve 22.
Inventors:
YAMAGUCHI KAZUYOSHI
TAJIMA KAZUHARU
NAKAYOSHI TAKANOBU
MICHIDA TAKAHARU
FUJIMOTO YOSHIAKI
TAJIMA KAZUHARU
NAKAYOSHI TAKANOBU
MICHIDA TAKAHARU
FUJIMOTO YOSHIAKI
Application Number:
JP2004072393A
Publication Date:
September 22, 2005
Filing Date:
March 15, 2004
Export Citation:
Assignee:
KOBELCO CONSTR MACHINERY LTD
International Classes:
E02F9/22; F02M21/02; F15B11/08; (IPC1-7): E02F9/22; F02M21/02; F15B11/08
Attorney, Agent or Firm:
Etsushi Kotani
Kyuichi Ueki
Muramatsu Toshiro
Kyuichi Ueki
Muramatsu Toshiro