Patent · US Active

Air pump assembly

US7775576B2 · kind B2 · utility

1Cited by

39References

35Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Daniel R. DER MARDEROSIAN · Westwood, US
Heinz Bauer · Solingen, DE
Stephane Laurent · Clermont-Ferrand, FR
Peter Bolz · Markgröningen, DE

Key dates

Filing date	Jun 25, 2004
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Jun 17, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60N2/914
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An air pump assembly includes a pump module having an outer surface and a casing at least partially surrounding the pump module. The casing has an inner surface defining a cavity sized to snugly receive the pump module such that the outer surface of the pump module is in substantial engagement with the inner surface of the casing and is substantially prevented from moving with respect to the casing when the pump module is received within the cavity. At least one airflow passageway is defined between the inner surface of the casing and the outer surface of the pump module. The airflow passageway is configured so that air flowing through the passageway changes direction at least one time to reduce the transmission of noise from the air pump assembly.

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