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US 2016/0108802 A1Published application
Internal combustion engine with exhaust-gas turbocharging and exhaust-gas recirculation
AssigneeFord Global Technologies, LLC
InventorsVanco Smiljanovski, Helmut Matthias Kindl, Joerg Kemmerling, Andreas Kuske, Franz Arnd Sommerhoff
Life of this patent
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Abstract
Methods and systems are provided for a compressor bypass passage. In one example, a method may include flowing bypassed charge air through an annular passage into an intake passage.
Claims20
A method, comprising:
- bypassing charge air to an intake system via a compressor bypass drawing charge air from each of upstream and downstream of a compressor impeller, where the compressor bypass introduces the bypassed charge air at an angle acute to an inner wall of an intake passage via an annular outlet.
A system, comprising:
- a compressor bypass located between a compressor and a low-pressure EGR passage;
- a first junction located upstream of a compressor impeller;
- a second junction located downstream of the first junction and the compressor impeller;
- a bypass passage in fluid communication with the first junction and the second junction, wherein a control valve in the bypass passage is located upstream of the first junction;
- and
- an annular passage in fluid communication with the bypass passage and an intake passage, wherein the annular passage directs bypassed charge air into the intake passage in a circular direction adjacent an inner wall of the intake passage toward the compressor.
3 more elements
A system, comprising:
- an annular bypass passage directing bypassed charge air from a compressor to an intake passage, and where an angular direction of the bypassed charge air is acute to an inner wall of the intake passage and the bypassed charge air flows adjacent to the inner wall to form a barrier between the inner wall and charge air of the intake passage.
Dependencies are inferred from the claim text.