Charger module for an internal combustion engine
AssigneeAudi AG
InventorsRalf Doring, Joerg Riegner, Jens-Uwe Kaulbach, Ralph Hollmig
Life of this patent
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Abstract
The invention relates to a charger module (1) for an internal combustion engine, comprising a mechanical charger (2) and two charge coolers (3, 4), mounted downstream of the charger (2), for cooling the compressed charge air. The aim of the invention is to reduce the costs for producing such a charger module without impairing the rigidity or structural stability of the charger module (1). For this purpose, the charger (2) and the two charge coolers (3, 4) are inserted in a common housing (5) which surrounds the charger (2) and the two charge coolers (3, 4) at least on the bottom side and on two opposite sides.
Claims1
A charger module for an internal combustion engine, comprising:
- a mechanical charger,
- two charge air coolers,
- wherein the two charge air coolers are positioned downstream from the mechanical charger for cooling compressed charge air;
- and
- wherein the mechanical charger is arranged along a centerline of the charger module between the two charge air coolers;
- an air distributor,
- wherein the air distributor is arranged between the mechanical charger and the charge air coolers;
- a bypass for partial-load adjustment,
- wherein the bypass is arranged above the mechanical charger;
- a one-piece, sand-cast, aluminum housing,
- wherein the one-piece, sand-cast, aluminum housing surrounds the mechanical charger, the two charge air coolers, the air distributor, and the bypass on at least a bottom side of the charger module and on two opposite sides of the charge module;
- and
- wherein the one-piece, sand-cast, aluminum housing further comprises:
- a first face having an opening for inserting the mechanical charger and the two charge air coolers,
- a second face, opposite to the first face, having an air intake opening,
- a bottom face comprising a plurality of air outlet openings,
- wherein the plurality of said air outlet openings, are
- arranged below the two charge air coolers,
- a vertical air channel for circulating air from the air intake to the mechanical charger through the air distributor and to the plurality of said air outlet openings,
- a plurality of parallel cooling fins arranged in a longitudinal direction of the two charge air coolers, parallel to a compressor shaft of the mechanical charger, and between opposite front boundary walls of the vertical air channel, and
- a plurality of connections for supply and removal of cooling water to the plurality of said parallel cooling fins,
- wherein air flowing through the vertical air channel flows in a cross-current direction with respect to cooling water flowing through the plurality of said parallel cooling fins.
Dependencies are inferred from the claim text.