Drive device for a pump element, especially for hydraulic units in motor vehicle braking systems, comprises a driven shaft, an eccentric element connected to the shaft, and a roll element

摘要

Drive device (1) for a pump element (3) comprises a driven shaft (2), an eccentric element (4) connected to the shaft, and a roll element (6) arranged between the eccentric element and the pump element. The roll element is guided in a groove (5) in the eccentric element. The pump element is moved by the roll element on rotation of the eccentric element in a direction perpendicular to the shaft axis (X-X). Preferred Features: The groove has a triangular, trapezoidal or rectangular cross-section. The roll element is connected to the pump element.