| 摘要 |
<p>PURPOSE:To drain oil in an exhaust oil chamber when oil is not being supplied to an accumulator chamber by installing a check valve, which passes oil only in the direction from the exhaust oil chamber to the accumulator chamber, in a division wall separating the exhaust oil chamber from the accumulator chamber. CONSTITUTION:Since oil in an accumulator chamber 1C is drained from an accumulator port 1D when oil in the accumulator chamber 1C is depressurized, an accumulator piston 2 is put in lower position by the action of a spring 3 and gravitation, and oil drained from a part in an upper position flows into an exhaust oil chamber 1B through an exhaust oil port 1E opening in the upper position of the exhaust oil chamber 1B. In the meantime, a check ball 4D in an enlarged part 4B of an orifice 4C is supported by a caulked part 4E because there is no pressure pressing it upward, and oil flowed in streams in the accumulator chamber 1C to be drained from the port 1D.</p> |
