An accumulator is added in-line with a valve on an agricultural machine and downstream of the valve. The valve is controlled to apply liquid material to a field over which the machine is traveling.

A cleaning device for selectively applying a first medium to a surface includes a high pressure reservoir configured to store the first medium held under a storage pressure, a pulse nozzle configured to apply the first medium under the storage pressure in a pulsed manner to the surface, and a switching valve that includes a nozzle port and a high pressure reservoir port for selectively establishing a first connection between the high pressure reservoir and the pulse nozzle, and a feed port for establishing a second connection between the high pressure reservoir and a first medium source. The high pressure reservoir and the switching valve are structurally integrated in a reservoir valve module. The switching valve comprises a solenoid valve to switch between the first and the second connection when the high pressure reservoir port is under the storage pressure.

A cleaning device for selectively applying a first medium to a surface includes a high pressure reservoir configured to store the first medium held under a storage pressure, a pulse nozzle configured to apply the first medium under the storage pressure in a pulsed manner to the surface, and a switching valve that includes a nozzle port and a high pressure reservoir port for selectively establishing a first connection between the high pressure reservoir and the pulse nozzle, and a feed port for establishing a second connection between the high pressure reservoir and a first medium source. The high pressure reservoir and the switching valve are structurally integrated in a reservoir valve module. The switching valve comprises a solenoid valve to switch between the first and the second connection when the high pressure reservoir port is under the storage pressure.

An intermittent air blow gun (10a) has a switching valve (26) including a switching-valve case (27) and a valve assembly (31), and the valve assembly (31) includes: a valve body (53) configured to open and close a valve hole; a small-diameter piston (33) partitioning so as to form a small-diameter pilot chamber (34); and a large-diameter piston (37) partitioning so as to form a large-diameter pilot chamber (38). The valve body (53) is switched to a closed position when air discharged from an inside of the switching-valve case (27) to an air discharge section (24) is supplied to the large-diameter pilot chamber (38) through a bypass flow path (77), and the valve body (53) is switched to an open position when air is exhausted.

An intermittent air blow gun (10a) has a switching valve (26) including a switching-valve case (27) and a valve assembly (31), and the valve assembly (31) includes: a valve body (53) configured to open and close a valve hole; a small-diameter piston (33) partitioning so as to form a small-diameter pilot chamber (34); and a large-diameter piston (37) partitioning so as to form a large-diameter pilot chamber (38). The valve body (53) is switched to a closed position when air discharged from an inside of the switching-valve case (27) to an air discharge section (24) is supplied to the large-diameter pilot chamber (38) through a bypass flow path (77), and the valve body (53) is switched to an open position when air is exhausted.

A liquid atomizing apparatus includes: an atomizing body member made of a porous body having micropores connected in a three-dimensional network, the atomizing body member having a surface including a part serving as a gas pressurized-inflow surface and another part serving as a gas release surface; a liquid supply unit for supplying a liquid to the atomizing body member, the liquid being to be impregnated into the micropores of the atomizing body member; and a gas supply unit for setting gas pressure on the gas pressurized-inflow surface of the atomizing body member to be higher than on the gas release surface of the atomizing body member and injecting the gas into the micropores of the atomizing body member through the gas pressurized-inflow surface, and releasing a mist of the liquid having been impregnated in the micropores together with the gas from the gas release surface.

An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.

An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.

A control valve in an intermittent air-generating device has a five-port valve, the inlet port of which is connected to a fluid supply source and the outlet port is connected to an air-spraying device. As a result of pilot air being supplied to a pilot input port, a valve element moves, and as a result of the inlet port and the outlet port being put in an ON state in which the two are in communication with each other, compressed air is sprayed from the air-spraying device. Meanwhile, as a result of the pilot air being discharged from the pilot input port by way of a discharge port, the valve element moves in the opposite direction and the inlet port and the outlet port are put in an OFF state in which the state of communication between the two is blocked. The ON state and OFF state alternate intermittently.

A control valve in an intermittent air-generating device has a five-port valve, the inlet port of which is connected to a fluid supply source and the outlet port is connected to an air-spraying device. As a result of pilot air being supplied to a pilot input port, a valve element moves, and as a result of the inlet port and the outlet port being put in an ON state in which the two are in communication with each other, compressed air is sprayed from the air-spraying device. Meanwhile, as a result of the pilot air being discharged from the pilot input port by way of a discharge port, the valve element moves in the opposite direction and the inlet port and the outlet port are put in an OFF state in which the state of communication between the two is blocked. The ON state and OFF state alternate intermittently.