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US 3,985,301 AGranted
Multi fluid injectors
AssigneeSpectus Oil Burner, Ltd.
InventorDavid Tindall
Life of this patent
Estimating the term…
Abstract
The invention comprehends a fluid injector comprising a liquid supply path to discharge passage means, a liquid return path for liquid supplied through the liquid supply path but not discharged through the discharge passage means, and a gaseous supply path to the discharge passage means and having a region in common with the liquid supply path, by which effecting a variation as between the liquid and gaseous pressures in said region will result in variation in the discharge of liquid from the fluid injector.
Claims21
Fluid injector apparatus, comprising
- a. a hollow injector body (1) containing at one end a discharge chamber (12) and including at least one discharge orifice (13;
- 17) for discharging fluid from said discharge chamber;
- b. liquid supply passage means (9, 8) contained in said injector body for supplying liquid to said discharge chamber;
- c. liquid return passage means (7) contained in said injector body for returning liquid from said discharge chamber;
- d. gas supply passage means (10, 14) contained in said injector body for supplying a gaseous fluid adjacent said discharge orifice;
- e. means causing the pressure (P3) of the fluid in said discharge chamber to be less than the pressure (P2) in said return passage means, whereby a portion of the liquid in said discharge chamber is discharged via said discharge orifice;
- and
- f. means causing the pressure (P4) of the fluid in said gas supply passage means to be greater than the pressure (P3) of the fluid in said discharge chamber, whereby the gaseous fluid is discharged via said discharge orifice in mixed relation with the discharged liquid portion.
5 more elements
Dependencies are inferred from the claim text.