US 11,512,795 B2 · Noise abatement in a venturi valve

Abstract

A venturi valve having a valve housing that includes a narrowing section extending between a broader upstream end and a narrower valve throat followed by a broadening section downstream of the valve throat, and a valve member configured to be situated in the valve housing and movable along a valve axis in an axial direction of the valve housing. The venturi valve includes a plurality of flow influencing features positioned in a reattachment region of the valve member and/or extending inward from an inner wall of the valve housing. The plurality of flow influencing features are configured to reduce perturbations in an air flow passing through the venturi valve thereby reducing rattle from the venturi valve.

Claims20

Dependent claims

A valve apparatus comprising:

a venturi valve housing that houses a valve member, wherein the valve member is movable in an axial direction of the valve housing, the valve member including:
a maximum width region that defines a maximum width of the valve member;
a first region downstream of the maximum width region;
a second region downstream of the first region;
wherein the first region tapers radially inward, the second region tapers radially inward from the first region, and wherein the first region and the second region do not have the same taper;
and
wherein the first region includes a plurality of distinct flow influencing features including a plurality of protrusions.

4 more elements

Dependencies are inferred from the claim text.

Noise abatement in a venturi valve

Life of this patent

Noise abatement in a venturi valve

Life of this patent

Abstract

Claims20