| 摘要 |
<p>The brush system has a base body, two current feed, two impedances as well as a pressure spring for two brushes. The impedance and pressure springs form a helix or spiral shaped components (5a,5b). The helix or spiral shaped component has a spring stiffness in the range from 0.5 N per mm to 5 N per mm for application of spring force (F) on the respective carbon brush (3a,3b). Independent claims are included for the following: (1) Brush housing; (2) Electric motor; and (3) Actuating unit.</p> |
