Air-intake duct system for a combustion engine

Details Air-intake duct system for a combustion engine Air-intake duct system for a combustion engine

2007-04-24

2007-04-24

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S568170, C123S184430

Reexamination Certificate

active

10595147

ABSTRACT:
The invention relates to an air-intake duct system (1) in which a throttle valve (40), an exhaust gas recirculating valve (29), a bypass valve (19), an exhaust gas cooler (11), against which exhaust gas flows via bypass valve (19), and, optionally, an air mass sensor are integrated. A complete intake unit for modern engines is hereby created, with which achieves a charging optimization and thus a reduction in fuel consumption as well as a reduction in pollutants by a corresponding thermal management in the engine by the exhaust gas cooler (11) that, together with a shell (3, 4) of the housing (2), is manufactured as a single piece. The individual add-on pieces (12, 19, 29, 40, 59) are optimally matched to one another and have, due to their designs, a low weight and a low finishing work requirement. This makes it possible to distinctly reduce assembly and manufacturing costs.

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International Search Report in corresponding International Application No. PCT/EP2004/009713 completed Dec. 30, 2004 and mailed Jan. 21, 2005.

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