Patent ID: 7757715

Claim:
An accumulator provided with a flow damper inside, the flow damper including a cylindrical vortex chamber, a small flow pipe connected to a peripheral portion of the vortex chamber along a tangential direction thereto, a large flow pipe connected to the peripheral portion while forming a predetermined angle with the small flow pipe, and an outlet pipe connected to an outlet formed at a central part of the vortex chamber, wherein a first junction formed at the intersection of the large flow pipe at an inner surface, which is located opposite to the small flow pipe, and the vortex chamber, which has an extended surface portion as a part of an inner peripheral surface, and is situated at the opposite side of the small flow pipe, is located outside an extension line of an inner surface of the small flow pipe, the extension line drawn along the tangential direction from a second junction formed at the intersection of the large flow pipe and the small flow pipe.