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US 5,810,566 AGranted
Pulse damper or acoustic outlet piece for a compressor and compressor equipped therewith
AssigneeAtlas Copco Airpower N.V.
InventorRaphael Pauwels
Life of this patent
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Abstract
Outlet piece for a compressor, which outlet piece contains a damping body (3) applied symmetrically around a passage (2), wherein the passage has a constant diameter and in that the damping body (3) has a transverse dimension which gradually increases along the direction of flow (V), so that this damping body (3) has a transverse thickness which increases along the direction of flow (V).
Claims13
An outlet piece for a compressor comprising:
- a constant diameter central passage having an open inlet and an open outlet end for conducting a fluid medium containing pressure pulses in a longitudinal direction of flow from the inlet end to the outlet end;
- a pulse damping body comprising sound absorbing material symmetrically surrounding and contiguous with the central passage from the inlet end to the outlet end and in fluid communication with the interior of the passage;
- said damping body having a transverse dimension extending transversely of the passage that gradually increases along the flow direction of the passage so that the damping body has an increasing transverse thickness along the flow direction with the transverse dimension of the damping body adjacent the inlet end of the central passage corresponding substantially to the diameter of the central passage inlet end.
Dependencies are inferred from the claim text.