Patent ID: 6537038
Filing Date: 2003-03-25
Classification: F02M,F04C,F16H

Abstract:
A device for supplying fuel, comprising:first and second drive shafts (32, 36), a supply pump (30) having at least one supply member (40), said supply member (40) coupled to said second drive shaft (32, 36), wherein said first drive shaft (32) drives said second drive shaft (36) by a gear unit (60), wherein said gear unit (60) is a tapered ring gear, said tapered ring gear having a first frictional bevel gear (62) connected to said first drive shaft (32) and a second frictional bevel gear (64) connected to said second drive shaft (36), wherein a tapered ring (66) is arranged between said first and second frictional bevel gears (62, 64), wherein said first and second friction bevel gears (62, 64) roll off one another by means of said tapered ring (66), and means to move the tapered ring (66) for changing a gear ratio of the gear unit (60) as a function of a supply pressure produced by said supply pump (30), whereby with a low supply pressure, a large gear ratio of the gear unit (60) is determined and with high supply pressure, a smaller gear ratio of the gear unit (60) is determined.