Patent · US Expired

Electrically driven air pump

US5388970A · kind A · utility

11Cited by

11References

8Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Klaus Muckelmann · Hilden, DE
Michael Bonse · Düsseldorf, DE
Gunter Van De Venne · Mönchengladbach, DE

Key dates

Filing date	Jan 24, 1994
Grant date	Feb 14, 1995
Priority date	—
Expiry date	Jan 24, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/668
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An electrically driven air pump having a housing, a pump mechanism in the housing and an electric motor in the housing connected in driving relation to the pump mechanism. Two spaced elastic supports support the electric motor from the housing at opposite ends of the motor. An air passage in the housing provides a flow of air past the electric motor to the pump mechanism. The air passage includes a suction nozzle supported by one of the elastic supports for supplying air to an inlet collar of a pump impeller of the pump mechanism. The suction nozzle projects into the collar for supply of the air from the electric motor to the pump mechanism.

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