Patent · US Expired

Apparatus for recirculating the exhaust gas of an internal combustion engine

US4467774A · kind A · utility

8Cited by

6References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfram Becker · Eberdingen, DE
Hermann Klein · Trossingen, DE

Key dates

Filing date	Sep 14, 1983
Grant date	Aug 28, 1984
Priority date	—
Expiry date	Sep 14, 2003

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M26/50
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

For recirculating the exhaust gas of an internal combustion engine, a recirculation line is provided which leads from the exhaust side to the intake side of the engine. A valve for controlling the recirculation rate is disposed in the line, and in order to prevent the formation of condensates in the line on the exhaust side when the valve is closed, a flushing line is provided which leads from the line segment on the exhaust side to a location point having lower pressure as compared with the exhaust side.

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