| F | SK | MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
| F03 | KL | MACHINES OR ENGINES FOR LIQUIDS (for liquids and elastic fluids F01; positive-displacement machines for liquids F04); WIND, SPRING, WEIGHT, OR MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR |
| F03D | UKL | WIND MOTORS |
| F03D 1/00 | HGR | Wind motors with rotation axis substantially in wind direction (controlling F03D 7/00) |
| F03D 1/02 | UGR1 | | . | having a plurality of rotors |
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| F03D 1/04 | UGR1 | | . | having stationary wind-guiding means, e.g. with shrouds or channels (F03D 1/02 takes precedence) |
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| F03D 1/06 | UGR1 | |
| F03D 3/00 | HGR | Wind motors with rotation axis substantially at right angle to wind direction (controlling F03D 7/00) |
| F03D 3/02 | UGR1 | | . | having a plurality of rotors |
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| F03D 3/04 | UGR1 | | . | having stationary wind-guiding means, e.g. with shrouds or channels (F03D 3/02 takes precedence) |
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| F03D 3/06 | UGR1 | |
| F03D 5/00 | HGR | Other wind motors (controlling F03D 7/00) |
| F03D 5/02 | UGR1 | | . | the wind-engaging parts being attached to endless chains or the like |
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| F03D 5/04 | UGR1 | | . | the wind-engaging parts being attached to carriages running on tracks or the like |
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| F03D 5/06 | UGR1 | | . | the wind-engaging parts swinging to-and-fro and not rotating |
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| F03D 7/00 | HGR | Controlling wind motors |
| F03D 7/02 | UGR1 | | . | the wind motors having rotation axis substantially in wind direction |
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| F03D 7/04 | UGR2 | | . . | Regulation, i.e. controlling automatically |
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| F03D 7/06 | UGR1 | | . | the wind motors having rotation axis substantially at right angle to wind direction |
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| F03D 9/00 | HGR | Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby (aspects predominantly concerning driven apparatus, see the relevant classes for such apparatus) |
| F03D 9/02 | UGR1 | | . | the apparatus storing power |
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| F03D 11/00 | HGR | Details, component parts, or accessories not provided for in, or of interest apart from, the preceding groups |
| F03D 11/02 | UGR1 | | . | Transmission of power, e.g. using hollow exhausting blades |
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| F03D 11/04 | UGR1 | |