FIELD: mechanical engineering.
SUBSTANCE: proposed precopression system is installed between pump and spraying nozzle which are connected by channel opening into space. System contains precompression valve made for travel between closing position and opening position with possibility of shifting into closing position by means of spring device. Space is connected with pump and passage is connected with outlet nozzle. Spring device can be made integral with precompression valve, for instance, precompression valve and spring device can be formed by elastic flexible and preferably dome-like diaphragm. Space can be ring-shaped and enclose end f channel, or can be limited by cylindrical sleeve. Invention relates also to spraying device containing pump, fluid medium supply device connected with pump suction side, spraying nozzle connected with pump discharge side and precompression system installed between pump and spraying nozzle. Invention relates also to unit formed by reservoir and spraying device.
EFFECT: facilitated manufacture and assembling of system, provision of free designing at its making in compact spraying head.
11 cl, 9 dwg
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