HYDRAULIC RAMMER Russian patent published in 1998 - IPC

FIELD: equipment for supplying water under pressure created by hydraulic impact. SUBSTANCE: hydraulic rammer has feeding reservoir combined with air hood 1 and made in the form of float. Cavity 2 of air hood is communicated with working chamber 11 via pipeline 10 provided with delivery valve 9. Working chamber 11 is formed as hollow toroidal segment. Impact valves 12 are formed as gates adapted for radial rocking and closing channel of working chamber 11 under the action of flow within working chamber 11. Rocking is provided by drive arm 7 on support 8, tie-rods 6 and eyelets 5. Water is delivered from cavity 2 via water intake 3 and hose 4 and supplied to consumers. EFFECT: simplified construction, enhanced reliability in operation by self-regulated controlling of impact and delivery valves. 1 dwg