Oil pump for a motor vehicle
AssigneeBrose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
InventorNico Wiessmann
Life of this patent
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Abstract
An oil pump for a motor vehicle, in particular an electrically operated gear pump, contains a pump housing that is closed relative to an end side by a housing cover, a shaft which extends in a longitudinal direction and to which a pump wheel is secured. The shaft is mounted on a first bearing and on a second bearing on both sides of the pump wheel. A pressure chamber is formed on a pressure side, and a lubricant channel leads from the pressure chamber to the shaft in a region of the first bearing for the lubrication of the two bearings. Between the shaft and the pump wheel secured to the shaft, at least one longitudinal channel also leads along the pump wheel to the second bearing.
Claims12
An oil pump for a motor vehicle, the oil pump comprising:
- a housing cover having a pressure chamber and a lubricant channel formed therein;
- a pump housing being closed in a direction toward an end face by said housing cover;
- a pump wheel having at least one longitudinal channel formed therein;
- bearings including a first bearing and a second bearing;
- and
- a shaft extending in a longitudinal direction and to which said pump wheel is secured, wherein said shaft is supported at both sides of said pump wheel on said first bearing and on said second bearing, wherein at a pressure side said pressure chamber is formed, and in order to lubricate said bearings oil from said pressure chamber is guided thru said lubricant channel to said shaft in a region of said first bearing, wherein said at least one longitudinal channel is between said shaft and said pump wheel which is secured to said shaft, oil is further guided along said at least one longitudinal channel in said pump wheel up to said second bearing.
Dependencies are inferred from the claim text.