Patent ID: 9545694
Date: 2017-01-17
CPC Classifications: B23P,F02D,F16K

Claim:
1. A cylindrical valve assembly, comprising: a housing defining a port, a cylindrical interior volume, and a cylindrical interior surface; a lip structure disposed about the periphery of the port, wherein the lip structure protrudes beyond the port into the cylindrical interior volume past the cylindrical interior surface of the housing; and a valve door defining an exterior surface disposed concentrically within the housing, wherein the valve door is configured to move from an open configuration in which it does not obstruct the port to a closed configuration in which it does obstruct the port, and wherein, when the valve door is in the closed configuration, the exterior surface of the valve door is in contact with the lip structure and not the cylindrical interior surface of the housing; wherein the lip structure is provided by an insert structure that is disposed through the port, and wherein an end of the insert structure opposite the lip structure comprises a velocity stack.