Exhaust gas recirculation cooler for an internal combustion engine

US10415515B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Oliver Grill · Metzingen, DE
• Helmut Weiser · Lörrach, DE

Key dates

• Filing date: Oct 12, 2017
• Grant date: Sep 17, 2019
• Expiry date: Oct 31, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F9/0265
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

An exhaust gas recirculation cooler may include a housing having a coolant inlet opening into an inlet region and a coolant outlet, and a plurality of cooling tubes arranged in the housing next to one another to form a tube row, each cooling tube connecting an exhaust gas inlet and outlet. At least two tube rows with one arranged on top of another and spaced from each other may form a tube block. Exhaust gas may be flowable through an inside of each cooling tube, and a coolant flow may be able to be circulated outside of the cooling tubes within the housing and flowable through an annular space enclosing the tube block in a circumferential direction. A flow guide arrangement for guiding the coolant in the interior of the tube block may be arranged in the housing lying against at least portions of one of the tube rows.