Swirl unit, orifice plate, and spray nozzle including same

Details Swirl unit, orifice plate, and spray nozzle including same Swirl unit, orifice plate, and spray nozzle including same

2007-08-14

2007-08-14

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Flow deflecting or rotation controlling means

Fluid rotation inducing means upstream of outlet

C239S505000, C239S490000

Reissue Patent

active

10373597

ABSTRACT:
In a spray nozzle (10), a carrier (12) defines a spray aperture (20), a groove (30) surrounding the spray aperture for receiving an o-ring (32), a first locating bore (26) for slidably receiving an orifice plate (14) seated against the o-ring (32) and for aligning the orifice plate with the spray aperture, and a second locating bore (28) for slidably receiving a swirl unit and aligning the swirl unit (16) with the orifice plate and spray aperture. The swirl unit (16) defines on its peripheral surface a recessed flat (58) forming a fluid passageway between the swirl unit and carrier. The swirl unit (16) includes a swirl chamber (60) defined by a curvilinear surface (62) formed within the swirl unit, and an inlet port (64) formed in fluid communication between the swirl chamber and fluid passageway. The nozzle body (18) is threadedly received within the carrier (12) behind the swirl unit (16) to axially press the swirl unit, and in turn press the orifice plate (14) against the adjacent surface of the carrier.

REFERENCES:
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patent: RE30004 (1979-05-01), Reed
patent: 4367847 (1983-01-01), Bayer
patent: 5152463 (1992-10-01), Mao et al.
patent: 5333790 (1994-08-01), Christopher
patent: 5358179 (1994-10-01), Lund et al.
patent: 5421522 (1995-06-01), Bowen
patent: 5934569 (1999-08-01), Soule et al.

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