Patent ID: 7815079

Claim:
A nozzle assembly comprising: a housing; an internal chamber enclosed by the housing, the internal chamber having an inlet and an outlet, the inlet being in fluid communication with a fluid line, the internal chamber having a first end and a second end, the outlet disposed at the second end of the internal chamber, the internal chamber including a diffuser and a substantially straight terminal portion downstream of the diffuser, a cross section of the substantially straight terminal portion equal to a largest cross section of the diffuser; a valve rod at least partly enclosed within the internal chamber; and a valve coupled to the valve rod, the valve at least partially positioned within the diffuser, the valve having a first end and a second end, the first end of the valve including a rounded nose portion having a larger cross section than a cross section of the valve downstream of the rounded nose portion and upstream of the second end, the second end of the valve having a larger cross section than the rounded nose portion, the second end of the valve extending outside the internal chamber in order to enable fluid to exit the internal chamber through the outlet.