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    • 8. 发明申请
    • Fuel pump
    • 燃油泵
    • US20070104591A1
    • 2007-05-10
    • US10581332
    • 2004-11-04
    • Wolfgang Warnke
    • Wolfgang Warnke
    • F04B9/00
    • F02M37/10H01R39/045
    • The invention relates to a fuel pump comprising an electromotive drive that has a commutator (20) and carbon brushes (24, 26) that brush alternately against commutator segments (16, 18) when the commutator (20) is rotated. The aim of the invention is to improve the corrosion resistance and to clean the carbon brushes (24, 26). To achiever this, the commutator segments (16, 18) contain graphite and at least one commutator segment (16, 18) contains graphite and an admixture of a material (30) that has a greater hardness than graphite.
    • 本发明涉及一种燃料泵,其包括电动驱动器,其具有换向器(20)和当换向器(20)旋转时交替地刷换换向器段(16,18)的碳刷(24,26)。 本发明的目的是提高耐腐蚀性并清洁碳刷(24,26)。 为了实现这一点,换向器段(16,18)包含石墨,并且至少一个换向器段(16,18)包含石墨和具有比石墨更大的硬度的材料(30)的混合物。