Pump aggregate for a hydraulic vehicle braking system
The invention relates to a pump unit ( 10 ) for a hydraulic vehicle brake system with traction control. The pump unit ( 10 ) has an electric motor ( 12 ) and a radial piston pump ( 14 ), which can be driven by the electric motor ( 12 ). The invention proposes embodying a rotor shaft ( 18 ) of the pu...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention relates to a pump unit (
10
) for a hydraulic vehicle brake system with traction control. The pump unit (
10
) has an electric motor (
12
) and a radial piston pump (
14
), which can be driven by the electric motor (
12
). The invention proposes embodying a rotor shaft (
18
) of the pump unit (
10
) with a hollow shaft (
20
) and with two standardized, hardened cylindrical pins (
22, 24
) that are press-fitted into the ends of the hollow shaft (
20
). The invention has the advantage that the rotor shaft (
18
) can be produced simply, economically, and without metal-cutting machining. Because of its embodiment as a hollow shaft (
20
), the rotor shaft (
18
) has high bending and torsional strength. Because of the press-fitted pins (
22, 24
), the rotor shaft (
18
) has a small diameter at the bearing points, which makes a small bearing diameter and thus a small installation space for the pump unit (
10
) possible. |
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