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Title:
ACCUMULATOR
Document Type and Number:
Japanese Patent JPH09184590
Kind Code:
A
Abstract:

To restrain the temperature rise to be generated by the operation of an accumulator, so as to improve durability of a seal material, a rubber bladder or a seal ring of a gas filling cock by providing heat radiating fins on the outer surface of a shell of the accumulator.

A plurality of heat radiating fins 15 are provided on the outer surface of a shell 1 in parallel with an axis of the shell 1. When an accumulator is used to restrain hydraulic pulsation of a construction machine such as a hydraulic shovel, heat to be generated by periodic compression or expansion of a metallic bellows 3 with sealing gas 2 is transmitted to the shell 1 through the metallic bellows 3 or oil and radiated in the air from the heat radiating fins 15. Therefore, the temperature rise of the accumulator can be restrained, the temperatures of a seal material 6 and a seal rings 8, 9 are lowered, deterioration of them is prevented, and durability can be improved.


Inventors:
Isobe, Hiroyuki
Hirami, Ichiro
Application Number:
JP1995000352998
Publication Date:
July 15, 1997
Filing Date:
December 28, 1995
Export Citation:
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Assignee:
HITACHI CONSTR MACH CO LTD
International Classes:
F16L55/04; (IPC1-7): F16L55/04
Attorney, Agent or Firm:
若田 勝一



 
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