Patent ID: 7650877

Claim:
A device for pre-conditioning of combustion air at a combustion air inlet path ( 2 ) to a combustion chamber ( 4 ), in which said inlet comprises a set ( 6 ) of two or more magnetic fields ( 8 a , 8 b , . . . ) arranged along said inlet path ( 2 ), each of said magnetic field ( 8 a ) having a corresponding north pole (Na, Nb, . . . ) and a corresponding south pole (Sa, Sb, . . . ) and a general magnetic moment vector ( 10 a , 10 b , . . . ) extending from said south pole portion (Sa, Sb, . . . ) to said north pole (Na, Nb, ); said magnetic moment vectors ( 10 a , 10 b , . . . ) being arranged mainly perpendicularly with respect to a longitudinal axis of said combustion air inlet path ( 2 ); said magnetic moment vectors ( 10 a , 10 b , . . . ) being distributed consecutively along said combustion air inlet path ( 2 ); said magnetic moments arranged with a separation between each said consecutive magnetic moment vector; said second or consecutive magnetic field ( 8 b ) being arranged having said second or consecutive magnetic moment vector's ( 10 b , . . . ) pole (Nb, Sb, . . . ) with the opposite pole adjacent to said inlet path ( 2 ) with respect to said first or preceding magnetic moment vector's ( 10 a , . . . ) pole (Sa, Na, . . . ).