IRRIGATION METHOD AND MACHINE FOR EFFECTUATING THE SAME Russian patent published in 2007 - IPC A01G25/09 

FIELD: agriculture, in particular, process and technique for crop irrigation.

SUBSTANCE: method involves providing water outlet selected on the basis of its flow rate and equipped with heads, said water outlet being spaced apart from center by distance multiple the serial number of unit of given water outlet on water feeding pipeline of irrigation machine; establishing similar water outlet with the same heads on parts of water feeding pipeline proximate to center at distance multiple the serial number of unit k; controlling time-pulse or width-pulse mode of operation; setting ratio of irrigation time t_ik of established water outlets with heads to irrigation time t_ik and no irrigation time t_nk, said ratio being equal to ratio of their serial numbers k to serial number of selected water outlet with heads i according to dependence: t_ik(t_ik+t_nk)=K/i. Valve or hydromechanical pulsator is mounted on each of equally spaced water outlets disposed close to central support on water feeding pipeline. Valve is controlled by generator. Hydromechanical pulsator has adjustable water feeding switch-on time or water feeding switch-off time during periodic operation thereof, said time being individually adjustable for each pulsator. Depending on serial number of pulsator corresponding to arrangement on water feeding pipeline and serial number of selected water outlet, pulsator cylinder piston stem is made hollow and is equipped at the side adjoining piston with piston stroke restricting device having radial openings therein. Inlet branch pipe positioned on cover is provided with outer thread and is connected to water outlet. Throttle regulator is made spherical and is equipped with scale and device indicating no water feeding time. Channel which connects cavity under piston and stem cavity is provided within cylinder. Valve with hollow stem is positioned on cylinder base within outlet branch pipe in axially aligned relation with respect to piston for axial displacement within branch pipe. Radial outlet apertures are provided on end of hollow stem. Restricting washer is rigidly fixed on cylinder base. Outlet branch pipe has scale. Retainer for fixing outlet branch pipe in predetermined position is formed as sleeve. Irrigation heads are positioned at outlets of each pulsator.

EFFECT: improved quality of irrigation process and simplified construction of machine.

3 cl, 3 dwg