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US 11,885,331 B2Granted
Pump unit for a drive train of a motor vehicle
AssigneeFTE automotive GmbH
InventorWilhelm Heubner
Life of this patent
Estimating the term…
Abstract
A pump unit which has at least one high-pressure port and at least one low-pressure port, having a motor and a hydraulic pump which has at least one high-pressure outlet and at least one low-pressure outlet, wherein the high-pressure outlet is connected to the high-pressure port via at least one pressure-regulating valve.
Claims5
A pump unit comprising:
- at least one high-pressure port;
- at least one low-pressure port;
- a motor;
- and
- a hydraulic pump which has at least one high-pressure outlet and at least one low-pressure outlet,
- wherein the high-pressure outlet is connected to the high-pressure port via at least one pressure-regulating valve,
- wherein the hydraulic pump is a rotary vane pump having multiple rotary vanes which, together with a stator and a rotor, delimit multiple low-pressure chambers, wherein each rotary vane delimits a high-pressure chamber within the rotor, and
- wherein in at least one side wall of the stator, a high-pressure inlet is assigned exclusively to the high-pressure chamber, and a low-pressure inlet separate from the high-pressure inlet is assigned exclusively to the low-pressure chamber.
5 more elements
Dependencies are inferred from the claim text.