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US 6,638,034 B2Granted
Pumping set for an ABS/ASR/VSC brake system
AssigneeLucas Varity GmbH
InventorHelmut Gegalski
Life of this patent
Estimating the term…
Abstract
The pumping set comprises an electric motor (10), the output shaft (12) of which is drivingly connected to a piston pump arrangement (14) for delivering hydraulic fluid. To prevent hydraulic fluid, which escapes at the piston pump arrangement (14) during operation, from passing into the interior (39) of the electric motor (10), a collecting region (30) is provided, which is connected to a storage chamber (36) in order to receive hydraulic fluid therein.
Claims11
Pumping set in particular for an ABS/ASR/VSC brake system, comprising:
- an electric motor, an output shaft of which is connected to a piston pump arrangement for delivering hydraulic fluid,
- a collecting region for hydraulic fluid escaping during operation from the piston pump arrangement, which collecting region is connected to a storage chamber in order to receive hydraulic fluid therein, wherein
- in the installed position of the pumping set the electric motor and the piston pump arrangement are oriented in such a way that the electric motor is situated gravitationally below the piston pump arrangement, characterized in that
- the output shaft is drivingly connected to the piston pump arrangement,
- the storage chamber is situated gravitationally below the collecting region, and
- the electric motor in its end region facing the piston pump arrangement has a recess, which forms the storage chamber.
3 more elements
Dependencies are inferred from the claim text.