Fluid sprinkling – spraying – and diffusing – With means for fluctuating flow or pressure of fluid...
Patent
1976-12-27
1978-03-21
Saifer, Robert W.
Fluid sprinkling, spraying, and diffusing
With means for fluctuating flow or pressure of fluid...
239601, 175 67, E21B 718
Patent
active
040798909
ABSTRACT:
A device intended for building up high pulse liquid pressures may find suitable application in the mining industry and can be advantageously used in constructions of hydro-power installations. The device comprises a cylinder accommodating a two-step piston having an accelerating actuator. The piston step of smaller diameter is positioned, during the piston stroke, within a high-pressure chamber communicating with a liquid supply source and fitted with an opening for the liquid discharge. The piston step of smaller diameter is provided with a rod having a widening at the free end thereof, while the high-pressure chamber has a constricted portion passing into a widening towards the opening for the liquid discharge. At the initial stage of the piston stroke, the widening of the rod overlaps the constricted portion of the chamber to lock the liquid within the chamber between the constricted portion thereof and the piston step of smaller diameter, whereby high pressure of the particular liquid is built up. As the piston continuous to move in the space between the rod and the widenings of the high-pressure chamber, a channel with an annular cross-section is formed. This channel serves to communicate the high-pressure chamber with the opening for the liquid discharge. The proposed device makes it possible to substantially increase the jet force of the discharged liquid and enhance the factor of utilization of energy derived from the piston acceleration.
REFERENCES:
patent: B380014 (1975-01-01), Glenn et al.
patent: 3343794 (1967-09-01), Voitsekhovsky
patent: 3601987 (1971-08-01), Chermensky et al.
patent: 3748953 (1973-07-01), Godfrey
patent: 3796371 (1974-03-01), Taylor et al.
Lyatkher Viktor Mikhailovich
Militeev Alexandr Nikolaevich
Nikolaev Valentin Pavlovich
Shkolnikov Sergei Yakovlevich
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