Compact split-lip shear washer nozzle
AssigneeDlhbowles, Inc.
InventorsShridhar Gopalan, Chunling Zhao, Andrew Cameron
Life of this patent
Estimating the term…
Abstract
A very compact nozzle assembly 100, 200, 300 and spray head for an automotive washer nozzle is configured for inclusion into an automotive trim component. The compact nozzle assembly and spray head generate a very effective cleaning spray at a selected spray fan angle, yaw angle and roll angle and, in an exemplary embodiment, the spray fan is dual shear shaped, producing an even distribution, which may be varied from 30° to 120°. Spray head may be as small as 5 mm in diameter and be aimed to provide a spray with various spray aim, yaw and roll angles. The design accounts for better mold ability and versatility of application.
Claims15
A compact spray head for use in automotive washer nozzle assembly, comprising:
- a molded compact shear spray nozzle member having an open proximal end in fluid communication with an interior lumen with tapering transition regions having progressively smaller internal lumen cross sectional areas;
- said lumen terminating distally in a distal shear-spray generating chamber having an elongated spray orifice with a first orifice edge opposite a second orifice edge,
- said distal shear-spray generating chamber also having a first concave wall segment defining a first fluid impingement angle, wherein said first concave wall segment terminates in the first spray orifice edge;
- said distal shear-spray generating chamber also having a second concave wall segment defining a second fluid impingement angle, wherein said second concave wall segment terminates in the second spray orifice edge;
- and
- said molded compact shear spray nozzle member terminating in a distal substantially hemispherical shaped exterior surface and wherein said spray orifice is configured to generate an outwardly projecting fluid spray fan.
A compact shear spray nozzle assembly, comprising:
- a molded compact shear spray insert member having a fluid channel with a proximal end, said fluid channel further comprising tapering transition regions having progressively smaller internal fluid channel cross sectional areas;
- said fluid channel terminating distally in a distal shear-spray generating chamber having an elongated spray orifice with a first orifice edge opposite a second orifice edge, said distal shear-spray generating chamber also having a first concave wall segment defining a first fluid impingement angle, wherein said first concave wall segment terminates in the first spray orifice edge;
- said distal shear-spray generating chamber also having a second concave wall segment defining a second fluid impingement angle, wherein said second concave wall segment terminates in the second spray orifice edge;
- and
- said molded compact shear spray insert member terminating in a distal exterior surface and wherein said spray orifice is configured to generate an outwardly projecting fluid spray fan.
Dependencies are inferred from the claim text.