Liquid fluidic device
AssigneeCanadian Patents and Development Limited
InventorJ. Douglas Malcolm
Life of this patent
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Abstract
A fluidic device using a free jet in which a control nozzle or nozzles terminate within the emitter jet, is disclosed. Positioning the ends of the control nozzles within the emitter jet avoids jet distortion when acted upon by control fluid for deflection. In the preferred embodiment, geometric symmetry is provided, either with control nozzles in pairs disposed opposite to each other, or another control member, such as a rod, disposed opposite to each control nozzle. A receiver for preventing air or gas entrainment is also disclosed. The device provides high efficiency, low noise, and operates with low pressure.
Claims14
A liquid fluid operated control device comprising:
- a. an emitter nozzle for coupling to a liquid supply source and operative to issue a free liquid emitter jet having a Weber number of from 8 to 70;
- b. control means comprising a control nozzle disposed such that one end thereof terminates within the emitter jet, said nozzle being disposed a distance of less than five emitter jet diameters downstream from the emitter nozzle, said nozzle being operative to issue a control jet for deflecting the emitter jet;
- and
- c. receiver means spaced downstream from the emitter for receiving the emitter jet.
Dependencies are inferred from the claim text.