Accumulator
AssigneeNHK Spring Co., Ltd.
InventorsHiroshi MIZUKAMI, Ippei IWAI, Mieko YANAGIDA
Life of this patent
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Abstract
An accumulator includes a pressure vessel and a partition portion separating an interior space of the pressure vessel into a liquid chamber and a gas chamber so that a volume ratio between the liquid chamber and the gas chamber in the pressure vessel is variable. The pressure vessel includes a first section including a thread portion for fastening the accumulator to a support member and a second section joined to the first section and formed by a single piece including a tool engagement portion capable of engaging with a tool for rotating the accumulator. The first section and the second section are fitted together by mating portions coaxial with the thread portion and the tool engagement portion.
Claims7
An accumulator comprising:
- a pressure vessel;
- and
- a partition portion separating an interior space of the pressure vessel into a liquid chamber and a gas chamber so that a volume ratio between the liquid chamber and the gas chamber in the pressure vessel is variable,
- wherein the pressure vessel includes:
- a first section including a thread portion for fastening the accumulator to a support member;
- and
- a second section joined to the first section and formed by a single piece including a tool engagement portion capable of engaging with a tool for rotating the accumulator, and
- wherein the first section and the second section are fitted together by mating portions coaxial with the thread portion and the tool engagement portion.
Dependencies are inferred from the claim text.