Patent · US Active

Motor vehicle vacuum pump arrangement

US11261869B2 · kind B2 · utility

0Cited by

6References

17Claims

0Family size

Assignee

PIERBURG PUMP TECHNOLOGY GMBH · DE

Inventors

Sebastian Cramer · Pulheim, DE
Nabil Salim Al-Hasan · Korschenbroich, DE
Daniel Mueller · Dubuque, US

Key dates

Filing date	Jun 22, 2016
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Aug 13, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2250/20
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electrical motor vehicle vacuum pump arrangement includes a housing assembly, a pump apparatus arranged therein, a drive motor, and a sound dampener. The housing assembly includes an inlet and an outlet opening arrangement. The pump apparatus includes a pump rotor housing with an inlet- and an outlet-side face wall, and a pump rotor housing part arranged therebetween. The inlet- and the outlet-side face wall and the pump rotor housing part enclose a pump rotor chamber with a pump rotor arranged therein. The drive motor is arranged in the housing assembly. The drive motor includes a motor rotor and a motor stator. The sound damper includes a first and a second sound damping chamber, and a sound dampener element. The first sound damping chamber is connected to the pump rotor chamber and to the second sound damping chamber. The second sound damping chamber is connected to the outlet opening arrangement.

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