Liquid atomizing apparatus for aerial spraying
First Claim
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1. A liquid atomizing apparatus for aerial spraying comprising:
- a rotatable atomizer;
a variable speed AC electric motor for driving said atomizer;
an AC generator for producing electric power to drive said electric motor at a speed related to the speed of said generator; and
variable speed drive means for connection between said generator and a power take-off of an engine of an aircraft used for aerial spraying, said drive means including means for controllably varying the speed of a motor means, said motor means controllably varying the speed of said generator relative to the speed of said engine.
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Abstract
A rotary liquid spray atomizer for aerial spraying is driven by a variable speed motor, driven in turn by power from a variable speed AC generator. The generator is driven from a power take-off from the engine of the spraying aircraft, a drive assembly includes a device for controlling the speed of the generator relative to the speed of the engine. The particularly convenient drive assembly between the generator and the power take-off is a hydraulic motor, which drives the generator, driven by a hydraulic pump driven from the power take-off. The speed of the hydraulic motor can be controllably varied. Conveniently the AC motor is a synchronous motor.
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Citations
7 Claims
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1. A liquid atomizing apparatus for aerial spraying comprising:
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a rotatable atomizer; a variable speed AC electric motor for driving said atomizer; an AC generator for producing electric power to drive said electric motor at a speed related to the speed of said generator; and variable speed drive means for connection between said generator and a power take-off of an engine of an aircraft used for aerial spraying, said drive means including means for controllably varying the speed of a motor means, said motor means controllably varying the speed of said generator relative to the speed of said engine.
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2. A liquid atomizing apparatus for aerial spraying comprising:
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a rotatable atomizer; a variable speed AC electric motor for driving said atomizer; an AC generator for producing electric power to drive said electric motor at a speed related to the speed of said generator; and variable speed drive means for connection between said generator and a power take-off of an engine of an aircraft used for aerial spraying, said drive means including means for controllably varying the speed of said generator relative to the speed of said engine, said variable speed drive means includes a variable speed hydraulic motor, pump means connected to said variable speed hydraulic motor, and control means positioned between said pump means and said variable speed hydraulic motor for controlling the flow of liquid from the pump means to the hydraulic motor to vary the speed thereof. - View Dependent Claims (3, 4, 5, 6, 7)
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Specification