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| HYDRAULIC DRIVE |
| FIELD: hydraulic drives designed for building-up pressure in pressure welding of plastic pipes.
EFFECT: higher reliability of claimed hydraulic drive. 2 dwg |
| Publishing date: October 14, 2003 |
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| METHOD OF REDUCING HYDRODYNAMIC FRICTION OF SHIP HULL SHELL |
| FIELD: ship hydrodynamics; shipbuilding; reduction of friction resistance of ship's hull through control of turbulent boundary layer on shell of ship's hull.
EFFECT: enhanced economical efficiency. 2 cl, 1 dwg |
| Publishing date: March 12, 2003 |
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| DEVICE FOR UTILIZATION OF DRIVE STREAM |
| FIELD: conversion of river stream energy into electrical energy.
EFFECT: possibility of obtaining electric energy from moment of installation of first unit increasing productivity as dam erection continues. 3 cl, 2 dwg |
| Publishing date: November 5, 2002 |
|
| SELF-OPERATING PUMP |
| FIELD: water lifts, type airlift actuated by solar energy.
EFFECT: enhanced efficiency. 3 cl, 1 dwg |
| Publishing date: August 20, 2002 |
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| WAY TO DETECT UNDERWATER OBJECT IN DEFENDED SEA WATER AREA |
| FIELD: underwater acoustics.
EFFECT: especial efficiency of way during gale and ( or ) precipitation on defended sea water area. 1 cl, 2 dwg |
| Publishing date: January 22, 2002 |
|
| DEVICE FOR PRODUCING COMPRESSED AIR AND FEEDING RIVER WATER DUE TO WATER CURRENT ENERGY |
| FIELD: hydraulic engineering.
EFFECT: simplified design; provision for operation under air-compression and water- delivery conditions. |
| Publishing date: May 30, 2001 |
|
| BOTTOM POWER STATION |
| FIELD: conversion of river current energy to electrical energy. SUBSTANCE: power station has four-rope flexible shafts of different length; they are made in form of parabola with similar number of hydraulic turbines mounted on it by means of sliding suspension. |
| Publishing date: April 4, 2001 |
|
| A METHOD OF OIL PRODUCTS COLLECTION AND REMOVAL FROM THE SURFACE OF GROUND WATERS |
| The known method of oil products collection and removal from the surface of ground waters includes construction of an anti-filtering barrier and a drain installation. In the method being patented, an internal dam from mineral ground is first built over the perimeter of an area being cleaned, and an external dam is then constructed at a distance from the internal dam. Thereafter, an anti-filtering barrier, passing through the internal dam at a depth below the level of the formed oil product lens sole but which doesn’t reach the water confining stratum, and through the external dam at the water confining stratum level, is built. Then, water is delivered to the space formed by the dams, and the ground is saturated with water, thus expelling oil products to the ground surface where a drain installation, lowered below the root level layer and the depth of the foundation of constructions and facilities, operates.
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| Publishing date: March 20, 2001 |
|
| A DEVICE FOR DAMPING WATER FLOW ENERGY |
| Traditional device for damping water flow energy includes a toe basin enlarging in its plane, with 2 vertical walls, and a crest located between the water supply duct with vertical walls and the water discharge duct. In the new design, the toe basin is rectangular-shaped and is equipped with inlet vertical side walls and longitudinal walls which are the continuation of the water supply duct walls. The crest in the plane is designed as a symmetric (about the basin longitudinal axis) curve, formed by 2 bends, with the convex facing the discharge duct. A ceiling is installed over the curved line of the crest upper part. |
| Publishing date: February 20, 2001 |
|
| WATER SCOOP |
| In a water scoop whose turbine water channel part is equipped with an upper head cover and is elongated in the direction of an upper pond against the facility suction side, the said turbine water channel is extended at a distance of not less than 2.5H, where H is a depth of a water intake passage upper edge below water level; if water level inconstant, H is a depth of a water intake passage upper edge at maximum water level. Head cover is installed above the turbine water channel intake whose length over the water scoop exceeds 5% of the water intake passage width... |
| Publishing date: January 10, 2001 |
|
| MULTISECTIONAL FLOW-PASSAGE WELL |
| In a well containing a number of similar sections which can be connected with each other, where each section is formed by a ring wall with passages made over the width on the wall opposite ends, the said section wall has a staged surface and at least one of the said section stages is made with a stiffening rib... |
| Publishing date: January 10, 2001 |
|
| DESIGN OF SUB-ROAD WATER-DRAINING FACILITY |
| In the new design, gravel is placed in casings, preferably made of a zinc-plated mesh, which form gabions (gravel-filled up metal mesh boxes) and separated with bandages. Warming material (warmer) is placed on the facility upper part and at the outlet from facility lower part below ground level. At least one anti-silting screen is installed on a side outer wall of the facility. Large-sized gravel is laid and compacted in-between gabions. |
| Publishing date: December 26, 2000 |
|
| METHOD OF DETERMINING THE DYNAMIC CHARACTERISTICS OF THE DAM FOUNDATION AND BODY OF THE WATER-DEVELOPMENT WORKS |
| The method consists in measuring
(within the scope of investigated object) the forced oscillations of the dam
body appearing under the effect of microseismic background of the natural and
technogenic origin. |
| Publishing date: July 21, 2000 |
|
Hydraulic engineering and structures
