Device for generating a jet stream of air entrained water

A device for generating a jet stream of air entrained water, comprising:

• a water inlet adapted to receive a water flow from a reservoir;
• an air inlet adapted to admit entrance of air stream;
• a water and air mixing body defining:
• first water and air transit chambers spaced apart from each other, and respectively having first water and air inlet ports which are disposed to be communicated respectively with said water inlet and said air inlet, and first water and air outlet ports which are disposed respectively downstream of said first water and air inlet ports, and
• second water and air transit chambers spaced apart from each other, and respectively having second water and air inlet ports which are disposed to be communicated respectively with said first water and air outlet ports, and second water and air outlet ports which are disposed respectively downstream of said second water and air inlet ports;
• first and second pumps respectively having first and second internal ports which are communicated respectively with said first water and air transit chambers, and which are disposed respectively downstream of said first water and air inlet ports and upstream of said first water and air outlet ports, said first and second pumps being configured to sequentially pump in and out of said first and second internal ports respectively, the water flow and the air stream respectively, thereby accelerating the speeds of the water flow and the air stream respectively so as to generate raised water and air pressures, respectively;
• first and second valves disposed respectively between said first water inlet port and said first internal port, and between said first air inlet port and said second internal port, each of said first and second valves being further disposed to be movable between
• a first closed position, where a respective one of the water flow and the air stream, being pumped out of a respective one of said first and second internal ports, is blocked from passing through a respective one of said first water and air inlet ports, while proceeding further to flow through a respective one of said first water and air outlet ports, and
• a first open position, where the respective one of the water flow and the air stream is pumped in a respective one of said first water and air transit chambers as well as the respective one of said first and second internal ports through the respective one of said first water and air inlet ports;
• third and fourth valves disposed respectively between said second water inlet port and said second water outlet port, and between said second air inlet port and said second air outlet port, each of said third and fourth valves being further disposed to be moved by the respective one of the raised water and air pressures from a second closed position, where
• the respective one of the water flow and the air stream, which is being pumped in the respective one of said first water and air transit chambers when the respective one of said first and second valves is in the first open position, is blocked from entering into a respective one of said second water and air outlet ports, to a second open position, where
• the respective one of the water flow and the air stream, which is flowing through the respective one of said first water and air outlet ports when the respective one of said first and second valves is in the first closed position, further proceeds to the respective one of said second water and air outlet ports through a respective one of said second water and air transit chambers;
• and
• a mixing outlet disposed downstream of and disposed to merge said second water and air outlet ports so as to obtain an accelerated stream of the air entrained water.