Patent ID: 7248004

Claim:
A radiator blower, in particular for motor vehicles, comprising a plurality of individual fans ( 11 , 12 ; 11 , 12 , 21 ; 11 , 12 , 11 ′, 12 ′), each having an electrical drive motor ( 13 , 14 ; 13 , 14 , 22 ; 13 , 14 , 13 ′, 14 ′), and comprising a circuit configuration ( 10 ) having a plurality of switches (S 1 , S 2 , S 3 ; S 1 , S 2 , S 3 , S 2 ′, S 3 ′; S 1 , S 2 , S 3 , S 2 ′, S 3 ′, S 3 ″), each of which is capable of being switched over into two positions ( 0 , 1 ), by means of which said circuit configuration the drive motors ( 13 , 14 ; 13 , 14 , 22 ; 13 , 14 , 13 ′, 14 ′) are capable of being turned on and back off individually or in a series or parallel connection, wherein, when the operating drive motor or motors ( 13 , 14 ; 13 , 14 , 22 ; 13 , 14 , 13 ′, 14 ′) is/are turned off, the switches (S 1 , S 2 , S 3 ; S 1 , S 2 , S 3 , S 2 ′, S 3 ′; S 1 , S 2 , S 3 , S 2 ′, S 3 ′, S 3 ″) are forced into switch positions that bring about a short-circuiting of the turned-off drive motor or motors ( 13 , 14 ; 13 , 14 , 22 ; 13 , 14 , 13 ′, 14 ′).