US 12,442,362 B2
Dosage pump with low energy consumption
Rudolf Albrecht, Bad Aibling (DE); and Max Lackner, Inzell (DE)
Assigned to Ecolab USA Inc., Saint Paul, MN (US)
Appl. No. 18/575,907
Filed by Ecolab USA Inc., Saint Paul, MN (US)
PCT Filed Jul. 2, 2021, PCT No. PCT/EP2021/068304
§ 371(c)(1), (2) Date Jan. 2, 2024,
PCT Pub. No. WO2023/274553, PCT Pub. Date Jan. 5, 2023.
Prior Publication US 2024/0369049 A1, Nov. 7, 2024
Int. Cl. F04B 7/00 (2006.01); F04B 43/02 (2006.01)
CPC F04B 7/0069 (2013.01) [F04B 43/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A dosage pump, comprising
a pump housing,
a first valve for discharging a fluid,
a second valve for feeding the fluid,
an actuation lever for actuating the first valve as well as the second valve,, wherein the actuating lever is adapted to be tilted around a tilting axis with respect to the pump housing,
a rotatable disc for providing a torque generated in a motor connectable to the disc, wherein the disc is adapted to rotate around an input axis of rotation,
a first cam connected to the disc and
a second cam connected to the disc,
wherein the actuating lever comprises a first raceway for bearing a first tilting force for tilting the actuation lever provided by the first cam at a first contact point and a second raceway for bearing a second tilting force for tilting the actuation lever provided by the second cam at a second contact point,
wherein the first raceway and the second raceway are formed such that at least partially during an angle of rotation of the disc, where the actuation lever has to apply an actuation force for opening and/or closing the first valve and/or the second valve, the first cam or the second cam, whose contact point to its corresponding raceway is farther away from the tilting axis of the actuation lever and/or adjusted to a lower torque at the actual angle of rotation of the disc, provides the tilting force onto the actuation lever.