Abstract: An actuating device, specifically to actuate locking differentials on vehicles, having an actuating shaft, a drive unit to drive the actuating shaft, where the drive unit comprises an armature core non-rotatably mounted on the actuating shaft and a commutator non-rotatably mounted on the actuating shaft, having an electromagnetic brake unit to brake and/or to hold the actuating shaft, where the brake unit includes a brake hub flange non-rotatably mounted on the armature, and having a single- or multi-piece housing tightly enclosing the drive unit and the brake unit, where the free end of the actuating shaft extends from the housing.
Type:
Grant
Filed:
December 12, 2002
Date of Patent:
June 21, 2005
Assignee:
Valeo Motoren und Aktuatoren GmbH
Inventors:
Ronald Frey, Harald Schmidt, Johannes Helmich, Birgit Scheytt, Werner Baeskow
Abstract: An actuating device, specifically for actuating locking differentials on vehicles, having an actuating shaft, a drive unit to drive the actuating shaft, where the drive unit comprises an armature core mounted to the actuating shaft so as not to rotate, and a commutator mounted to the actuating shaft so as not to rotate and/or with an electromagnetic brake unit to slow and/or stop the actuating shaft, where the brake unit includes a brake hub flange mounted on the armature so as not to rotate and having a single- or multi-piece housing tightly enclosing the drive unit and the brake unit, where the free end of the actuating shaft extends from the housing and with a sensor to measure the angle of rotation of the shaft, where the sensor unit includes at least one trigger wheel indirectly coupled to the shaft and at least one sensor scanning the trigger wheel position and coupled indirectly to the housing.
Type:
Grant
Filed:
December 12, 2002
Date of Patent:
April 12, 2005
Assignee:
Valeo Motoren und Aktuatoren GmbH
Inventors:
Ronald Frey, Harald Schmidt, Johannes Helmich, Birgit Scheytt, Werner Baeskow
Abstract: A drive device includes an electric drive motor, a housing with a housing cover, at least one shaft that is powered by the drive motor and compensating element(s) for compensating the axial play of the shaft. The compensating elements include at least one axially elastic, deformable elastomer element having at least one contact surface. The contact surface(s) has a PTFE, PET or corresponding coating.
Type:
Grant
Filed:
July 2, 2001
Date of Patent:
March 15, 2005
Assignee:
Valeo Motoren und Aktuatoren GmbH
Inventors:
Ronald Frey, Friedrich Kaiser, Johannes Helmich, Josef Klar, Werner Baeskow
Abstract: A cover plate for an electric motor which has a brush array and interference suppression devices has additional electronic components mounted directly on the cover to determine the speed of the electric motor and for diagnosis. Contact with the interference suppression devices and the additional electronic components is achieved through electrical conductors which are located directly on the cover plate. Flexible use of the electric motor is ensured through the high temperature stability of the cover plate.
Type:
Grant
Filed:
December 12, 2002
Date of Patent:
April 20, 2004
Assignee:
Valeo Motoren und Aktuatoren GmbH
Inventors:
Ronald Frey, Harald Schmidt, Johannes Helmich, Werner Baeskow