Patent · US Active

Washer fluid pump

US8714949B2 · kind B2 · utility

2Cited by

16References

20Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Patrick Opel · Lengede, DE
Dirk Ringler · Motzfeld, DE

Key dates

Filing date	Apr 14, 2008
Grant date	May 6, 2014
Priority date	—
Expiry date	Jul 13, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/6022
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a washer fluid pump (2) for a window cleaning system (3) of a motor vehicle, a ventilation duct (21) of an electric motor (9) is guided in a labyrinth from a first plane (22) arranged in the electric motor (9) into the environment via a second plane (24) arranged in a collecting space (23). For this purpose, the ventilation duct (21) has two first sections (20) which lead vertically from the electric motor (9) into the collecting space (23), and two second sections (26) which open out vertically from the collecting space (23) into the environment. The first and the second sections (20, 26) are offset with respect to one another by 90°, so as to prevent an infiltration of spray water into the electric motor (9).

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