Improvements relating to the liquid cooled I.C. engines

(19)

(11)

EP 0 921 284 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	23.08.2000 Bulletin 2000/34

(43)	Date of publication A2:
	09.06.1999 Bulletin 1999/23

(21)	Application number: 98309499.6

(22)	Date of filing: 19.11.1998

(51)	International Patent Classification (IPC)⁷: F01P 5/10

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

03.12.1997 GB 9725621

(71)	Applicant: CONCENTRIC PUMPS LIMITED
	Birmingham B24 8HW (GB)

(72)	Inventor:
	Sayers, Jonathan Alan Sutton Coldfield, West Midlands B73 7DZ (GB)

(74)	Representative: Barnfather, Karl Jon, Dr. et al
	Withers & Rogers, Goldings House, 2 Hays Lane London SE1 2HW London SE1 2HW (GB)

(54)	Improvements relating to the liquid cooled I.C. engines

(57) A liquid cooled internal combustion engine cooling system comprising a radiator 10, and an impeller 18 mounted on a drive shaft 20 and forming part of the radiator assembly. Preferably a compartment in the radiator header tank is used as an impeller chamber and the chamber may be closed by a plate carrying a bearing and a seal for co-operation with the drive shaft from the drive motor 12.

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