US 6,334,437 B1 · System for recirculating exhaust gas in an internal combustion engine

Abstract

A system for recirculating exhaust gas in an internal combustion engine in which a connecting line for the recirculated exhaust gas is connected to an air intake tube with cooling elements arranged in between. The cooling element may be, for example, a cooling channel for liquid coolant integrated into the flange connecting the connecting line to the air intake tube, or it may be another heat conductive element.

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Dependent claims

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Facts

Application

09/508,763Filed 25 Apr 2000

Granted

1 Jan 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

F02M 35/10222
Fluid connections to the air intake system; their arrangement of pipes, valves or the like: exhaust gas recirculation [EGR]; Positive crankcase…
F02M 26/12
Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR]…
F02M 26/32
Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials: liquid-cooled heat exchangers
F02M 26/41
Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories: characterised by the…

System for recirculating exhaust gas in an internal combustion engine

Life of this patent

Abstract

Claims0

System for recirculating exhaust gas in an internal combustion engine

Life of this patent

Abstract

Claims0