Title:
PUFFER TYPE GAS CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2016173899
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a puffer type gas circuit breaker which does not take time and effort of assembly and adjustment, by constituting a relief valve and a suction valve integrally.SOLUTION: A puffer mechanism is constituted of a puffer cylinder and a fixed piston which is fixed and disposed movably relative to the puffer cylinder, a compression chamber is constituted by partitioning the inside of the puffer cylinder by means of a partition wall, a pressure release communication hole and a suction communication hole are provided in the piston wall of the piston facing the compression chamber, a suction valve plate and a pressure release valve plate for opening and closing the suction communication hole and pressure release communication hole are disposed oppositely on the opposite sides of the piston wall, a valve rod for movably guiding and supporting the pressure release valve plate and suction valve plate is provided, a valve spring is provided on one end side of the valve rod, and the pressure release valve plate and suction valve plate are pressed against the opposite sides of the piston wall by means of the valve spring, thus closing the pressure release communication hole and suction communication hole so as to be able to be opened and closed.SELECTED DRAWING: Figure 2
More Like This:
| WO/1998/001877 | COMPRESSED GAS POWER SWITCH |
| JPH01309227 | BUFFER TYPE GAS-BLASTED CIRCUIT BREAKER |
Inventors:
ISOZAKI MASARU
NAKANO MASAYOSHI
TAKAO NOBUYUKI
YAMADA NAOTO
NAKANO MASAYOSHI
TAKAO NOBUYUKI
YAMADA NAOTO
Application Number:
JP2015052425A
Publication Date:
September 29, 2016
Filing Date:
March 16, 2015
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H01H33/915
Domestic Patent References:
| JP2003141974A | 2003-05-16 |
Foreign References:
| US20110056915A1 | 2011-03-10 |
Attorney, Agent or Firm:
Iwao Yamaguchi
Hiroshi Yamamoto
Hiroshi Yamamoto