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A nozzle assembly for a liquid dispenser includes an outlet member that defines a liquid supply conduit and a nozzle that includes an exit orifice, wherein the nozzle is disposed over an end of the outlet member. A liquid compression path is defined by the nozzle and the outlet member, wherein the l

A nozzle assembly for a liquid dispenser includes an outlet member that defines a liquid supply conduit and a nozzle that includes an exit orifice, wherein the nozzle is disposed over an end of the outlet member. A liquid compression path is defined by the nozzle and the outlet member, wherein the liquid compression path includes a liquid compression chamber that supplies liquid from the liquid supply conduit to the exit orifice. The nozzle is adjustable between a first spray position for projecting a liquid spray having a first average droplet size and a second spray position for projecting a liquid spray having a first average droplet size. In the first spray position the liquid compression chamber has a first volume and in the second spray position the liquid compression chamber has a second volume. Preferably, the liquid spray is formed without a swirl chamber.

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1. A nozzle assembly for a liquid dispenser, comprising: an outlet member that defines a liquid supply conduit;a nozzle that includes an exit orifice extending therethrough, wherein the nozzle is disposed over an end of the outlet member; anda liquid compression path defined by the nozzle and the ou

1. A nozzle assembly for a liquid dispenser, comprising: an outlet member that defines a liquid supply conduit;a nozzle that includes an exit orifice extending therethrough, wherein the nozzle is disposed over an end of the outlet member; anda liquid compression path defined by the nozzle and the outlet member, wherein the liquid compression path includes a liquid compression chamber that supplies liquid from the liquid supply conduit to the exit orifice, anda preference valve disposed between the outlet member and the nozzle, wherein the liquid compression chamber is defined between the preference valve and the nozzle,wherein the nozzle is adjustable between a first spray position for projecting a liquid spray having a first average droplet size and a second spray position for projecting a liquid spray having a second average droplet size greater than the first average droplet size,wherein in the first spray position the liquid compression chamber has a first volume and in the second spray position the liquid compression chamber has a second volume larger than the first volume, andwherein the liquid spray is formed without a swirl chamber directly upstream from the exit orifice and without injecting pressurized air into the fluid upstream of the exit orifice when the nozzle is in the first spray position and without injecting pressurized air into the fluid upstream of the exit orifice when the nozzle is in the second spray position, andwherein the nozzle includes a central plug projecting therefrom, and the central plug is disposed in an axial passageway of the preference valve, wherein an end wall of the nozzle includes axially extending ridges and the preference valve includes axially extending channels that interact with the ridges to block the exit orifice, and wherein the nozzle rotates independently of the preference valve. 2. The nozzle assembly of claim 1, wherein the nozzle includes a first exit orifice and a second exit orifice, and in the first spray position the first exit orifice is aligned with the compression path to form a first compression chamber having the first volume and the second exit orifice is blocked, and in the second spray position the second exit orifice is aligned with the compression path to form a second compression chamber having the second volume and the first exit orifice is blocked. 3. The nozzle assembly of claim 1, wherein the liquid compression path includes a first liquid compression chamber having the first volume and a second liquid compression chamber having the second volume, and in the first spray position the exit orifice is aligned with the first compression chamber to direct liquid therethrough and in the second spray position the exit orifice is aligned with the second compression chamber to direct liquid therethrough. 4. The nozzle assembly of claim 1, wherein the nozzle is rotatable about the preference valve and the preference valve includes an anti-rotation feature so that the preference valve is substantially rotatably fixed with respect to the outlet member. 5. The nozzle assembly of claim 1, wherein in the first spray position the nozzle is disposed a first axial distance from the outlet member and in the second spray position the nozzle is disposed a second axial distance from the outlet member greater than the first distance. 6. The nozzle assembly of claim 5, wherein the nozzle is adjustable to an off position that prevents the projection of a liquid spray, and wherein in the off position the nozzle is disposed a third axial distance from the outlet member between the first and second axial distances. 7. The nozzle assembly of claim 5, wherein the outlet member further includes a discharge valve that includes an end wall and a generally cylindrical member projecting axially from the end wall, wherein the cylindrical member has a central bore and a first axial channel that extends therethrough to the central bore, further wherein the nozzle includes an end wall, a central protrusion projecting from the end wall, at least one exit orifice disposed around the central protrusion, a sleeve radially spaced from the central protrusion and projecting from the end wall, and a second axial channel disposed along the sleeve, andwherein the sleeve is disposed over the cylindrical member of the discharge valve and the second axial channel is rotatably movable to align selectively with the first axial channel. 8. A nozzle assembly for a liquid dispenser, comprising: an outlet member that defines a liquid supply conduit;a nozzle that includes an exit orifice extending therethrough, wherein the nozzle is disposed over an end of the outlet member; anda liquid compression path defined by the nozzle and the outlet member, wherein the liquid compression path includes a liquid compression chamber that supplies liquid from the liquid supply conduit to the exit orifice, anda preference valve disposed between the outlet member and the nozzle,wherein the preference valve further includes an outer wall radially spaced from an inner wall defining an axial passageway, a channel extending axially along the inner wall adjacent the axial passageway, and an end wall extending between the outer and inner walls spaced from a discharge end of the preference valve to define a recessed channel, wherein the liquid compression chamber is defined between the preference valve and the nozzle and wherein liquid is supplied from the liquid supply conduit, through the channel and the axial passageway, through the recessed channel, to the liquid compression chamber, and out the exit orifice,wherein the nozzle is adjustable between a first spray position for projecting a liquid spray having a first average droplet size and a second spray position for projecting a liquid spray having a second average droplet size greater than the first average droplet size,wherein in the first spray position the liquid compression chamber has a first volume and in the second spray position the liquid compression chamber has a second volume larger than the first volume, andwherein the liquid spray is formed without a swirl chamber directly upstream from the exit orifice, andwherein the preference valve includes opposed openings through the inner wall proximate a discharge end of the preference valve, a hump disposed in the recessed channel of the preference valve between a first side of the opposed openings, and a wall that extends between an opposite second side of the opposed openings, wherein the wall substantially prevents liquid flow through the second side. 9. The nozzle assembly of claim 8, further comprising radially opposed openings through the inner wall proximate the discharge end of the preference valve, a first hump disposed in the recessed channel between a first side of the opposed openings, and a second hump disposed in the recessed channel between an opposite second side of the opposed openings, wherein the height of the first hump is greater than the height of the second hump. 10. The nozzle assembly of claim 9, wherein the nozzle includes an end wall, the exit orifice is axially offset and disposed through the end wall, and a central plug projects from the end wall and has two laterally opposed recesses, and wherein the central plug is disposed in the axial passageway of the preference valve. 11. The nozzle assembly of claim 8, wherein the nozzle includes an end wall with first and second diametrically aligned exit orifices disposed therethrough and a central plug projecting therefrom, and wherein an inner side of the end wall is recessed around the second exit orifice, and the central plug includes a recess and is disposed in the axial passageway of the preference valve. 12. The nozzle assembly of claim 11, wherein the end wall of the nozzle includes axially extending ridges disposed on opposite sides of each of the first and second exit orifices, and wherein the wall that extends between the second side of the opposed openings includes axially extending channels that interact with the ridges to block the second exit orifice in the second spray position and to block the first exit orifice in the first spray position. 13. A nozzle assembly for a liquid dispenser, comprising: an outlet member that defines a liquid supply conduit;a nozzle that includes an exit orifice, wherein the nozzle is disposed over an end of the outlet member; anda liquid compression path defined between the nozzle and the outlet member, wherein the liquid compression path includes a liquid compression chamber that supplies liquid from the liquid supply conduit to the exit orifice,a preference valve disposed between the outlet member and the nozzle, wherein the liquid compression chamber is defined between the preference valve and the nozzle,wherein the nozzle is adjustable between a first spray position for projecting a divergent liquid spray having a first average droplet size and a second spray position for projecting a divergent liquid spray having a second average droplet size greater than the first average droplet size,and wherein the first average droplet size is between about 40 micrometers and about 60 micrometers and the second average droplet size is between about 90 micrometers and about 120 micrometers, andwherein the liquid compression chamber is directly upstream of the exit orifice and provides a substantially unobstructed direct radial flow path to the exit orifice without injecting pressurized air into the fluid upstream of the exit orifice when the nozzle is in the first spray position and without injecting pressurized air into the fluid upstream of the exit orifice when the nozzle is in the second spray position, andwherein an end wall of the nozzle includes axially extending ridges and the preference valve includes axially extending channels that interact with the ridges to block the exit orifice. 14. The nozzle assembly of claim 13, wherein the end wall of the nozzle includes first and second exit orifices disposed therethrough, and wherein an inner side of the end wall is recessed around the second exit orifice and the second exit orifice is larger than the first exit orifice,and wherein in the first spray position the first exit orifice is aligned with a recessed channel of the preference valve and the second exit orifice is blocked, and in the second spray position the second exit orifice is aligned with the recessed channel and the first exit orifice is blocked.