the present invention relates to hydrokinetic energy conversion systems , more particularly river high pressure water pumps that convert river water and gravitational energy to a form of a high pressure water . the machines may be used for various purposes , including generating power , compressing and / or liquefying gaseous fluids , producing potable water or general cleaning thereof , through reverse osmosis membrane processes , irrigation for aquatic farms , delivering water from one location to another , etc . the present invention , the river high pressure energy conversion machine , is the equivalent of a machine commonly called a pump which has been around for thousands of years . it performs the same functions as any known pumps . pumps do nothing but increase the pressure on fluids , adding energy for doing work . this machine can do all that any pump other does by using turbines for driving other kinds of pumps and compressors . the environment of the first preferred embodiment of the invention is illustrated in fig1 . the mainline pipe is located in the sloping river r . feeder river machines are located in tributaries t . back flow prevention valves 2 prevent water from flowing back into the rivers before it reaches the mainline pipe . a turbogenerator 6 or other water driven accessory is driven by water from the mainline pipe . a one foot tall square inch column of water exerts 0 . 4444 pounds per square inch at its base , assuming river water weighing 64 pounds per cubic foot . at the headwaters of the river at point a , at an elevation of 1 , 364 feet , the pressure is zero pounds per square inch . at point b , at an elevation of 909 feet , the pressure is 200 pounds per square inch . at point c , at an elevation of 682 feet , the pressure is 300 pounds per square inch . at point d , at an elevation of 455 feet , the pressure is 400 pounds per square inch . at point e , at an elevation of 227 feet , the pressure is 500 pounds per square inch . at point f , at sea level , the pressure is 600 pounds per square inch . ( these figures are purely for illustration , and should not be construed to limit the scope of the invention .) the first preferred embodiment of the invention is illustrated in fig2 , showing the river r , land 15 , the mainline pipe 5 , feeder machine 1 with back flow prevention valve 2 , a turbogenerator or other water driven accessory 6 , supply line 38 with valve 37 , and discharge pipe 7 . the first preferred embodiment of the invention is further illustrated in fig3 , showing the river water surface 9 , river bed 10 , river bank 11 , and land 15 . the direction of flow is indicated by the arrows . 16 indicates variations in length of pump 5 depending of the river slope . referring to fig3 , the mainline high pressure water pump 5 with inlet 4 and outlet 3 can be any length from river head to river mouth of the river or rivers with gravitation as the driver . feeder river water machines 1 may be any length from feeder river heads to discharge into the mainline machine 5 . back flow prevention valves 2 will be installed in feeder river water machine 1 before connection to mainline high pressure water machine 5 to prevent back flow of river water to feeder river water machine 1 with lower head pressures than other feeder river water machine 1 and mainline machine 5 . whenever the mainline ends , an accessible stop valve 12 shall be installed to control final outflow of river water and pressure . the stop valve should never be fully closed , so that sediment and debris is released from the system . referring to fig1 , the supply pipe 38 from mainline pump 5 to turbogenerator 6 has the stop valve 37 to prevent water flow during maintenance of turbogenerator 6 and a pressure control valve 13 to control the pressure in turbogenerator 6 ( to keep it within a safe range , as may be recommend by its manufacturer ). the turbogenerator 6 may be installed on a suitable foundation 14 on land near or away from the river bank . a discharge pipe 7 from turbogenerator 6 will allow discharge of water back to the river from where it came . river volume discharged is identical to flow to turbogenerator 6 . heat from the turbogenerator 6 is dissipated to the atmosphere . provisions are made to connect turbogenerator 6 to a power grid 8 . referring to fig4 , the water inlet 17 of the basic machine will connect to a flexible pipe 24 which will connect to an enlarged inlet 18 attached to the underside of a float 21 to keep the enlarged inlet 18 just below the water surface regardless of the water surface elevation . filter 19 is behind the strainer in the inlet 18 . upstream barrier 20 is installed to prevent large floating objects from impinging on inlet apparatus . the float 21 will be supported by a post 22 attached to a foundation 23 on the river bed 31 . the post 22 will be designed to allow for movement of the float 21 up and down with water surface 32 movement . a pipe and fittings will be used to have the pump inlet pipe 25 rise onto land 33 level adjacent to the river bank 30 and connect to a turbogenerator 26 on a foundation 28 on land 33 for generating electricity . water discharge pipe 29 is for water discharge back to the river from turbogenerator 26 . the inlet pipe 25 will include a stop valve 35 to stop flow of water whenever the accessory turbogenerator is shut down for maintenance . electrical cable 27 connects to power grid . any manufacturer &# 39 ; s turbogenerator 26 may be used , regardless of required pressure inlet . a pressure regulating valve 36 will be installed between the stop valve 35 and the turbogenerator 26 to set pressure required by manufacturer . referring to fig2 , the river is described as follows : river water surface 32 , river bed 31 , river bank 30 , and land 33 . arrows indicate the direction of water flow . 34 indicates variations in length of machine 26 , depending on the river slope . referring to fig5 , land 101 is near the top of the waterfall . land 102 is near the bottom of the waterfall . waterfall edges 103 are near the outer edges of machines 106 . top water surface 104 of the river is just below the land surface 101 . the upper river bed surface 105 is just below flowing water 110 . river water 110 is filling machines ( or tanks ) 106 , and over flowing down the waterfall and keeping machines 106 full , when turbogenerators ( not shown ) are borrowing water to generate electricity . back land wall 113 of waterfall is behind falling water 109 . typical straps 114 attach tanks 106 to land edges 103 . the particular method of attachment and support is to be determined by site conditions . pipe 112 supplies pressurized water to turbogenerator accessories ( not shown ). supply and discharge are the same as shown in fig6 &# 39 ; s pipe 25 intake and pipe 29 discharge . the bases 107 of the machines rest on the river bed 115 . this invention is beneficial to the department of energy (“ doe ”) because it makes it possible to generate electricity and potable water singularly , or simultaneously with other uses , using only gravitational forces as the power source . the high pressure river machines are river energy inventions which convert gravitational forces to mechanical forces for doing work . the primary resource is river water stored from high elevations to low elevations inside the machine , which causes water pressure to be high near the bottom of the machine . the basic machine will deliver high pressure river water to turbines , turbogenerators , mechanical equipment and other on land to do work . pressurized river water will be generated do work 24 hours every day for as long as the equipment is operable and rivers flow . unlike any other forms of renewable energy , it is exactly suitable for base load power applications . the high pressure river machines can be used with any water pump driven by turbines to pump or compress any fluid , liquid or gaseous and deliver liquid and gases from one location to another for storage and doing work . the high pressure river machines meet doe &# 39 ; s mission for reducing our dependence on fossil , nuclear and other manufactured fuels . the only costs are design , installation and maintenance . the success of this device does not depend on developing any new enabling technology . it is ready to go . gravity is the only force that makes the pump workable . the river pressurized water pump can be used : to drive turbines generating electricity ; force water through reverse osmosis units generate potable water ( drinking water ); drive mechanical machinery directly ; provide nutrient rich water to fish farms ; or provide water for irrigation , swimming , manufacturing , etc . scientifically the present invention works as follows : for the sake of argument , river water weighs 64 pounds a cubic foot , more or less , depending how much of miscellaneous elements are dissolved in it . all rivers flow mostly downhill , sloping more or less or not at all in sections from head to foot . elevation is the measure of distance above sea level . water seeks it own level . water weighing 64 pounds per cubic foot divided by 144 square inches = 0 . 44444 psi per foot of elevation drop . for an elevation drop necessary to have 100 psi pressure available inside the sloping pipe near bottom to drive a turbine to generate electricity divide 100 psi by 0 . 44444 psi per foot and get 225 feet with a 45 degree slope . the length of the machine pipe will be 225 square × 225 square = square root of 101 , 250 = 318 feet . the length of the machines vary with the slope . waterfalls are vertical and have no slope . their length is the usable height of the waterfall . thirty five waterfalls in the world exceed 2000 feet in height . using the waterfall high pressure water pump , the water pressure at the bottom = 2000 feet times 0 . 44444 = 888 . 9 psi . immense work can be done with that pressure , with absolutely zero effect on river flow and environment . the missouri river is the longest river in the usa . its elevation drop from head to mouth is 4042 feet at its head minus 404 feet at the mississippi river = 3638 feet × 0 . 44444 psi per foot = 1617 psi . many machines can be installed on both sides of the river , with no effect on river flow and ever increasing work outputs at each location . there can be pump farms at each location with one water supply manifolding water to multiple turbines , with power manifolded together to power grids . pressure regulating valves can be installed in pipes to individual turbines to regulate pressure , allowing use of any pressure required by manufacturer &# 39 ; s turbines or turbogenerators to do work intended . imagine mainline machine pipes as long as the missouri river or as long as the missouri - mississippi , having greater water pressure reusing water already used above . water can be entered into the missouri - mississippi from both sides of the rivers , each having a mainline connecting to the missouri - mississippi mainline . back flow prevention valves will have to be installed in branch mainlines which have lower head elevations than the highest to avoid backup and overflow to those heads . back flow could be allowed to fill reservoirs at high elevations ( lower than the highest elevation ) for use in peak periods of demand . imagine the dungeness river in washington state with an elevation drop of 7300 feet in 32 miles — the steepest river in the u . s . a . the only limiting factor will be available volume which may decrease during dry or freezing weather . power may then be available from a power grid from other rivers . a principal advantage of the present invention is that it will have zero effect on river flow , environment , ecology , and wildlife in rivers and on land . the present invention will not effect the flow rivers when generating electricity . water is in and out of the turbogenerators at approximately the same location without change in river flow . the present invention will not interfere with river transportation . imagine river high pressure energy conversion machines on all of the major rivers in the world that have adequate elevation drops and flows . imagine large power grids to distribute the power where needed . all of that with zero downside . there will be no need to use fossil and nuclear fuels again anywhere . imagine machines installed vertically on waterfalls with inlet funnels at top to collect water into the machines , creating high water pressure near the bottom of the machines . there are 35 waterfalls in the world with elevations varying from 2200 feet to 3212 feet . the pressure at bottom of a 2200 foot waterfall will be 2200 × 0 . 44444 = 978 psi . the pressure at the bottom of the 3212 foot waterfall will be 3212 × 0 . 44444 = 1427 psi . every 225 feet of elevation on waterfalls add 100 psi to the total pressure at bottom of the falls . pipe water to turbogenerator units on land to produce electricity . discharge the river water back into the river . the result is zero change in water volume downstream from the waterfalls . machines can be made as wide as the falls , with a large percentage of the water overflowing the pumps without being used . a list of the world &# 39 ; s largest waterfalls can be found at http :// www . world - waterfalls . com . the high pressure water can be borrowed to drive turbogenerators located away from the waterfalls , and water can be returned to the river nearby or anywhere down stream . what about the ownership of river water ? river water itself may be allocated by water courts to various users such as farmers and city utility companies that divert the water from the river . but the higher courts have ruled that public ownership and the pubic trust doctrine must also be considered in water use regulation . courts have specifically rejected the argument that public trust values on rivers were “ subsumed ” into water rights allocations . courts have held that the public trust doctrine applies to natural water resources , regardless of their navigability . ( flowing water is a public resource in any case .) the public trust extends even to very small streams . ( see www . nationalrivers . org / us - law - who - owns . htm .) the inventor has met with the corps of engineers in little rock , ark ., and discussed rules and regulations for using river waters , river beds and river banks for his project . he will have no problem conforming with federal regulations and rules . permits will be required . i also will have to comply with individual state rules and regulations . permits will be required . each state where a state line is crossed will have to approve the crossings by his pump . each state will have to approve anything he installs in the rivers , or on the river beds and banks . no individual , state or corporation owns any of the water , as it is owned by all of the people . it is to be understood that the present invention is not limited to the embodiment described above , but encompasses any and all embodiments within the scope of the following claims .