| 摘要 |
Lawn sprinklers and related devices receive a fluid under pressure and convert its potential energy to kinetic energy; and their spreading range depends on the kinetic energy of the issuing jets. The object of present invention is a device of this class in which, however, the energy of a fluid from a single source is internally so redistributed, through pressure exchange, that different jets are made to issue from it at different kinetic energy levels, thereby making it possible for the sprinkling or spreading to cover a considerably wider area (for any given source pressure) and to do so more evenly.
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