Patent ID: 11867281
Assignee: VITESCO TECHNOLOGIES GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 11:
12. A multiple action, external gear pump having a pump stage assembly configured to supply a lubricating oil to at least one consumer, comprising:
a pump housing;
at least two pump suction stages formed by a first assembly comprising at least three intermeshing external gearwheels that lie in a first plane, arranged in the pump housing, and configured to:
draw in the lubricating oil from a first oil container functioning as a dry sump, and
deliver the lubricating oil to a second oil container functioning as an oil tank, and

at least one pump pressure stage formed by a second assembly of two intermeshing external gearwheels that lie in a second plane, wherein the first plane and the second plane lie parallel to one another, arranged in the pump housing, and configured to:
draw in the lubricating oil from the second oil container; and
delivering the lubricating oil to the at least one consumer,

wherein the pump suction stages and the pump pressure stage are arranged spaced apart from one another and have a common drive shaft,
wherein a first delivery volume flow can be drawn in from a first region of the first oil container via a first inlet by a first pump suction stage, and
wherein a second delivery volume flow can be drawn in from a second region of the first oil container via a second inlet by a second pump suction stage,
wherein the first delivery volume flow and the second delivery volume flow intermix in the pump housing before they reach the second oil container via a respective outlet,
wherein at least two respective tooth center points of the first external gearwheel assembly and respective tooth center points of the second external gearwheel assembly are arranged in a common plane that intersects the pump housing in a longitudinal direction and lies orthogonally to the first and second planes,
wherein at least two pump pressure stages are provided that are formed by the second assembly of at least three intermeshing external gearwheels, wherein the at least two tooth center points of the first external gearwheel assembly and at least two respective tooth center points of the second external gearwheel assembly are arranged in the common plane.