Patent · US Active

Automotive auxiliary assembly vacuum pump having a single-piece flange element

US11078912B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

PIERBURG PUMP TECHNOLOGY GMBH · DE

Inventors

Nabil Salim Al-Hasan · Korschenbroich, DE
Tobias Gruene · Arnsberg, DE
Sebastian Cramer · Pulheim, DE
STEFFEN SCHNURR · Essen, DE

Key dates

Filing date	May 10, 2017
Grant date	Aug 3, 2021
Priority date	—
Expiry date	Dec 1, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2240/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An automotive auxiliary assembly vacuum pump includes a housing composite structure with an electric motor section, a pump section, a pump inlet opening, and a pump outlet opening, a motor housing part, a bearing plate which closes the motor housing part proximally, and a pump rotor with a rotor body. The electric motor section includes a motor rotor which is surrounded by the motor housing part and which is closed by the bearing plate. The pump section includes a pump housing which defines a pump chamber and which includes a closure element, at least one pump chamber inlet opening, and at least one pump chamber outlet opening. The pump housing is formed at least by axially proximal and axially distal thrust washers and a radial thrust ring. Only the bearing plate and the axially proximal thrust washer are provided as a single-piece flange element.

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