The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2004
Filed:
Mar. 25, 2002
Jochem Fischer, Marbach, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
A fluid inlet suitable for introducing a hot exhaust gas into the air intake tract of an internal combustion engine. The exhaust gas is conducted through an inlet pipe ( ) and a deflector ( ) into the intake pipe or tract ( ). A preferably tubular insert ( ) is disposed in the intake tract ( ). The insert has walls ( ) which are oriented in the direction of flow of the aspirated exhaust gas. The fluid inlet reduces the thermal stress on the walls of the intake tract ( ) to a minimum and makes high exhaust recovery or recirculation rates possible. In order to additionally support cooling of the insert, the insert may be provided with apertures ( ) through which a secondary air current of the intake air which flows through an intermediate chamber ( ) can shift to the interior of the tube in order to achieve film cooling of the insert ( ).