| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a metal bellows in which a bellows itself has the function of absorbing high pressure by the thermal expansion of liquid, in the metal bellows used for an accumulator. <P>SOLUTION: This metal bellows has axially repeatedly a structure of integrally molding a first inner diameter side reversal part, a first belly part, a first outer diameter side reversal part, a second belly part, a second inner diameter side reversal part, a third belly part, a second outer diameter side reversal part and a fourth belly part in a series in this order, When pressure acts from the inner diameter side of the bellows in a free length state, the first belly part, the second belly part, the third belly part and the fourth belly part absorb the pressure by respectively mutually swelling in the direction for separating in the axial direction, and at this time, an interval in the axial direction between the first outer diameter side reversal part and the second outer diameter side reversal part is hardly changed, and when the bellows extends from the free length state, the interval in the axial direction between the first outer diameter side reversal part and the second outer diameter side reversal part expands. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
