Motor pump assembly with variably set eccentric
AssigneeAlfred Teves GmbH
InventorsHans-Dieter Reinartz, Helmut Steffes
Life of this patent
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Abstract
The present invention relates to a drive assembly, in particular a motor pump assembly for slip-controlled brake systems, with a device for transforming rotatory into translatory movements, including a drive shaft which is movably guided in a housing, and an eccentric device which is associated with the drive shaft. In order to be able to change the dimension of the eccentric, it is provided that the eccentric device is formed of two eccentrics which are turnable relative to each other and are in mesh with each other in a form-fit manner, so that at least an eccentric sum dimension formed from the individual eccentric dimensions of two eccentrics, respectively, can be set variably.
Claims7
A motor pump drive assembly for slip-controlled brake systems, with device for transforming rotatory into translatory movements;
- with, a drive shaft which is movably guided in a housing;
- comprising:
- an eccentric device which is associated with said drive shaft, said eccentric device being formed of a first and second eccentric, said first and second eccentric being turnable relative to each other and in mesh with each other, so that at least an eccentric sum dimension formed form this individual eccentric dimensions of said eccentrics can be set variably, wherein said eccentric is directly attached to said drive shaft and said second eccentric is turnably attached to said first eccentric;
- an actuating element that connects said second eccentric with a control slide which can be acted upon axially;
- and
- a control piston which is acted upon by the pressure from the pump drive assembly, said control piston being lengthwise associated with the control slide in the form of a series mounting.
Drive assembly for a self-controlled brake system, comprising:
- a drive shaft that rotates at a preselected shaft velocity;
- a housing adapted to movably received and guide said drive shaft;
- an eccentric device having a first eccentric member connected to said drive shaft and a second eccentric member disposed upon said first eccentric member;
- wherein said first eccentric member comprises a shaft with a first shaft end attached to said drive shaft such that said shaft moves eccentrically relative to said drive shaft, said shaft rotating at said shaft velocity;
- wherein said second eccentric member comprises a concentric sleeve that rotatably receives said shaft such that said sleeve moves eccentrically relative to said drive shaft, said sleeve being disposed on said shaft proximate said first shaft end;
- a control slide that is a concentric cylinder that slidably and rotatably receives a second shaft end;
- and
- a means for connecting said sleeve to said control slide and for eccentrically moving said sleeve relative to said drive shaft and for rotating said sleeve at a sleeve velocity relative to said shaft, in response to longitudinal movement of said control slide relative to said shaft, said connecting means being disposed around said shaft and having two ends, a first end attached to said control slide and a second end attached to said sleeve, said connecting means striving to maintain a preselected longitudinal distance between said sleeve and said control slide.
Dependencies are inferred from the claim text.