Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1320/CHE/2012 A
(19) INDIA
(22) Date of filing of Application :02/04/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : DRIVE SYSTEM OF THE ENGINE COOLING SYSTEM FOR MOTOR VEHICLES
(51) International classification
:F16F (71)Name of Applicant :
15/00 1)MAN TRUCK & BUS AG
(31) Priority Document No
:10 2011 Address of Applicant :DACHAUER STR. 667, 80995
016 204.6 MUNCHEN Germany
(32) Priority Date :06/04/2011 (72)Name of Inventor :
(33) Name of priority country :Germany 1)LECHNER, MATTHIAS
(86) International Application No
Filing Date
:NA
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(57) Abstract :
A drive system for a fan 5 of an engine cooling system in a motor vehicle, wherein the motor vehicle has a radiator 2 for recooling
a cooling medium for cooling an internal combustion engine 3, and wherein a fan 5 which is driven by means of a
driveshaft 4 of the internal combustion engine 3 and which serves for cooling the engine cooling medium is arranged between the
radiator 2 and the internal combustion engine 3. The drive system 1 has a viscous coupling 6 and a vibration damper 7 which
comprises an elastic element and which dampens and/or decouples the vibrations between the driveshaft-side output A of the
internal combustion engine 3 and the fan 5. The viscous coupling 6 and the vibration damper 7 are arranged between the internal
combustion engine 3 and the fan 5, wherein the vibration damper 7 is arranged between the fan 5 and the viscous coupling 6 and
dampens and/or decouples vibrations acting between the fan 5 and the viscous coupling 6.
No. of Pages : 31 No. of Claims : 15
The Patent Office Journal 21/06/2013 13733