Patent · US Expired

Secondary air deliver device for an internal combustion engine

US7260929B2 · kind B2 · utility

3Cited by

13References

16Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Hans-Georg Lehmann · Eßlingen, DE
Martin Schlegl · Weingarten, DE
Holger Stark · Allmersbach im Tal, DE

Key dates

Filing date	Jan 31, 2006
Grant date	Aug 28, 2007
Priority date	—
Expiry date	Jan 31, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a secondary air delivery device for an internal combustion engine comprising a secondary air charger with a compressor and a turbine which is driven by the vacuum generated in the engine intake duct and which drives the compressor that delivers secondary air to the engine exhaust duct, wherein the engine intake air duct includes an air filter for filtering the air supplied to the engine, a separate air filter structure is provided for filtering the air supplied to the compressor and to the turbine which air filter structure is accommodated in the housing of the secondary air charger.

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