ROTOR-TYPE WINDMILL WITH CIRCULAR AIRFLOW CONCENTRATOR Russian patent published in 2016 - IPC F03D3/02 F03D3/04 F03D11/00 

FIELD: engines and pumps.

SUBSTANCE: claimed windmill comprises the bearing truss composed of at least three supports. Top and bottom bearing sites are secured to the latter. The housings of top and bottom bearings are secured to said bearing sites coaxially with the bores. Vertical airflow guides are arranged around the bearing truss. Conical airflow guides are arranged around the top and bottom support sites. The vertical and comical airflow guides are rigidly secured to the bearing truss and to each other to make the circular airflow concentrator. Said bearing truss inside is separated by extra sites with bores at the centre and the bearings at the section. The number of said bearings equal to the number of rotors fitted in the bearing truss, each with its shaft. One extension of the shaft has the seat for bearings and the shank. The shaft opposite extension has the shank only. The rotors' shaft extensions with seats and shank run in the bearings fitted at the support sites. The opposite extensions of rotor shafts are arranged in the truss adjacent sections are engaged by swivel joint. The shank of rotor shaft extension at top section is articulated with the shank of roller fitted by its seat in the top bearing located at the bearing housing at the top support site. The shank at the rotor shaft extension at the truss bottom section is articulated with the shaft of electric power consuming hardware.

EFFECT: higher power output and reliability, longer life.

3 dwg