Patent ID: 11933426
Assignee: FISHER CONTROLS INTERNATIONAL LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 8:
9. A noise attenuation assembly for a ball valve, the noise attenuation assembly comprising:
a ball body including first and second ears configured to secure the ball body to the ball valve for operation, the ball body configured to selectively permit fluid flow through the ball valve via a fluid pathway that extends in an axial flow direction through the ball body, the fluid pathway having a ball inlet and a ball outlet, the ball inlet defining a ball inlet profile that extends from a first lateral side of the ball body to a second lateral side of the ball body; and
an attenuator having a plurality of channels that collectively form an attenuator inlet and an attenuator outlet, the attenuator inlet defining an attenuator inlet profile that is geometrically similar to the ball inlet profile and extends from a first lateral side of the attenuator to a second lateral side of the attenuator,
the attenuator including first and second locating tabs and secured relative to the ball body within the fluid pathway so that the first and second locating tabs engage the respective first and second ears of the ball body, fluid flow through the ball valve passes through the plurality of channels to reduce noise associated with fluid expansion, and the attenuator inlet profile extends along the ball inlet profile along substantially all of a width of the ball inlet profile between the first and second lateral sides of the ball body.