Patent · US Active

Electric motor-pump assembly

US10493971B2 · kind B2 · utility

0Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 2015
Grant dateDec 3, 2019
Priority date
Expiry dateDec 30, 2035

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2001/103
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

In an electric motor-pump assembly, two working diaphragms, each delimiting a working chamber, are cyclically driven by a crank drive via connecting rods. The crank drive includes eccentrics for each connecting rod, which are placed on an axial bearing journal in the extension of an output shaft of an electric motor. In order to ensure a rotationally fixed connection between the eccentrics and the bearing journal to be produced and in order to ensure an angularly precise position of the two eccentrics, each of the eccentrics is connected to the bearing journal by a positively locking engagement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.