Fuel Injector Spray Patterns Diagram - Annular, Single-Hole & Multi-Hole Metering

This document is a single illustrated figure from an automotive reference showing four types of fuel injector metering and spray atomization patterns. The caption identifies the four types as: (1) annular orifice metering, (2) single-hole metering, (3) multi-hole metering, and (4) multi-hole metering with a two-spray injector. The accompanying illustration depicts four fuel injector nozzle tips side by side, each with its characteristic spray pattern rendered below the tip: the first three show single spray cones of varying widths, while the fourth shows two divergent spray plumes emitted from a single injector (useful, for example, where one injector feeds two intake ports or valves). A reader can learn from this figure how injector nozzle design (annular orifice vs. single-hole vs. multi-hole) affects fuel spray shape and atomization, and can visually compare the spray geometry of each design. The document contains no part numbers, torque specifications, wiring information, or vehicle-specific applicability data, it is a general technical illustration about electronic fuel injection spray patterns, filed by the uploader in an album alongside other fuel-system reference scans for a 1990 Ford Bronco.