Features for a valve assembly are described. The features can include a pair of spaced walls having apertures defining non-linear exit flow paths for the fluid, such as air, exiting the valve. In some embodiments, the features are described for a bleed valve assembly, to reduce the decibels produced
Features for a valve assembly are described. The features can include a pair of spaced walls having apertures defining non-linear exit flow paths for the fluid, such as air, exiting the valve. In some embodiments, the features are described for a bleed valve assembly, to reduce the decibels produced when used in high pressure contexts, such as aircraft engines. The noise suppression features are integrated with the valve assembly. A valve, such as a stem and valve head, can move within the assembly between open and closed positions. The valve assembly can be manufactured using additive layer manufacturing (ALM) to create a monolithic housing that in some embodiments has the noise suppression features built into the assembly.
대표청구항▼
1. A valve assembly comprising: a housing comprising: a base at a proximal end of the housing, the base extending circumferentially about a longitudinal axis;a first wall coupled with the base and extending to a distal end of the housing so that the first wall attaches with a surface of a solid body
1. A valve assembly comprising: a housing comprising: a base at a proximal end of the housing, the base extending circumferentially about a longitudinal axis;a first wall coupled with the base and extending to a distal end of the housing so that the first wall attaches with a surface of a solid body at the distal end of the housing, the first wall extending circumferentially about the longitudinal axis, the first wall comprising a plurality of first apertures extending therethrough; anda second wall coupled with the base and extending to the distal end of the housing so that the second wall attaches with the surface of the solid body, the second wall extending circumferentially about the longitudinal axis and at least partially surrounding the first wall, the second wall comprising a plurality of second apertures extending therethrough, wherein the housing defines a continuous structure and the first and second walls join together at the solid body of the housing;an elongated guide extending from a proximal portion located between the base of the housing and the distal end of the housing to a distal portion coupled to the distal end of the housing, the elongated guide extending along the longitudinal axis and having an internal chamber extending along the axis to a proximal opening at the proximal portion; anda valve comprising: an elongated stem extending from a distal end to a proximal end, the stem extending through the proximal opening of the guide and at least partially through the internal chamber of the guide, the distal end having an outwardly tapered section that limits proximal movement of the valve by mechanically communicating with an inwardly tapered section of the internal chamber of the guide; anda valve head coupled with and extending radially outward from the proximal end of the stem that limits distal movement of the valve by mechanically communicating with the base, wherein the valve is moveable proximally and distally along the longitudinal axis between an open position and a closed position, wherein in the open position the valve head is spaced apart from the base and in the closed position the valve head abuts the base; anda spring surrounding the guide and extending from the distal portion of the guide to a proximal portion of the valve, wherein the spring biases the valve to the open position. 2. The valve assembly of claim 1, wherein the plurality of first apertures of the first wall are offset from the plurality of second apertures of the second wall so as to define a plurality of non-linear flow paths that extend from the plurality of first apertures to the plurality of second apertures. 3. The valve assembly of claim 1, wherein at least some of the first and second apertures are non-circular. 4. The valve assembly of claim 1, wherein the plurality of first and second apertures define first and second lattices of the first and second walls, respectively. 5. The valve assembly of claim 1, wherein the second wall is radially spaced apart from the first wall such that a channel is defined therebetween, wherein an annular width of the channel varies between the first and second walls at different locations along lengths of the first and second walls. 6. The valve assembly of claim 1, wherein the housing is formed by additive layer manufacturing (ALM). 7. The valve assembly of claim 1, wherein the elongated guide, the base, the first wall, the second wall, and the valve are formed by additive layer manufacturing (ALM). 8. The valve assembly of claim 1, wherein the housing is monolithic. 9. The valve assembly of claim 8, wherein the monolithic housing is dome-shaped.
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