Dosage pump with low energy consumption

Abstract

It is provided a dosage pump (10) comprising a pump housing (12), a first valve (18), a second valve (20), an actuation lever (22), wherein the actuating lever (22) is adapted to be tilted around a tilting axis (24), a disc (34) for providing a torque, wherein the disc (34) is adapted to rotate around an input axis, a first cam (26) connected to the disc (34) and a second cam (30) connected to the disc (34), wherein the actuating lever (22) comprises a first raceway (28), wherein the first raceway (28) and the second raceway (32) are formed such that at least partially during an angle of rotation of the disc (34), where the actuation lever (22) has to apply an actuation force for opening and/or closing the first valve (18) and/or the second valve (20), the first cam (26) or the second cam (30), whose contact point to its corresponding raceway (28, 32) is farer away from the tilting axis (24) of the actuation lever (22) and/or adjusted to a lower torque at the actual angle of rotation of the disc (34), provides the tilting force onto the actuation lever (22). Due to the at least two cams (26, 30) the actuation force at the valves (18, 20) can be provided by means of the cam (26, 30) with a large lever arm, so that a lower torque of the disc (34) is sufficient, which can be generated with a lower energy consumption.

Dependencies are inferred from the claim text.