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US 2019/0360390 A1Published application
Compressor bypass flow arrangement
AssigneeCummins Inc.
InventorsDavid Guillermo Gonzalez Medina, Alan C. Anderson, Matthew Keith Sease, David P. Richter, Rahul Bhardwaj
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Abstract
Methods and devices are disclosed for introducing a compressor bypass flow that is returned from location that is downstream of a pressure source of an internal combustion engine to an air filter housing that is located upstream of the pressure source.
Claims22
A method, comprising:
- receiving a fresh airflow in a flow passage into an air filter housing upstream of an internal combustion engine;
- receiving a compressor bypass flow into the air filter housing;
- delivering the fresh airflow and the compressor bypass flow from the air filter housing to an air-fuel mixer;
- introducing a fuel into the air-fuel mixer to combine with the fresh air flow and the compressor bypass flow to provide a charge flow;
- and
- pressurizing the charge flow downstream of the air-fuel mixer, wherein the compressor bypass flow is a returned portion of the pressurized charge flow.
3 more elements
A system, comprising:
- at least one pressure source including an inlet and an outlet, the at least one pressure source operable to pressurize a charge flow received by the pressure source through the inlet and to provide the pressurized portion of the charge flow to the outlet;
- an air filter housing including at least one air filter housed therein, the air filter housing including at least one outlet, the at least one outlet connected to the inlet of the at least one pressure source, the air filter housing including:
- a first inlet for receiving a fresh airflow;
- and
- a second inlet for receiving a compressor bypass flow that is returned from a location downstream of the at least one pressure source, wherein the fresh airflow and compressor bypass flow combine in the air filter housing and are provided to the at least one pressure source through the at least one outlet.
2 more elements
An air filter assembly, comprising:
- an air filter housing including at least one air filter housed therein, the air filter housing including at least one outlet, the at least one outlet connected to an inlet of a pressure source that is operable to pressurize a charge flow to an internal combustion engine, the air filter housing including:
- a first inlet for receiving a fresh airflow;
- and
- a second inlet for receiving a compressor bypass flow that is returned from a location downstream of the at least one pressure source, wherein the fresh airflow and compressor bypass flow combine in the air filter housing and are passed through the at least one outlet to the pressure source.
1 more element
Dependencies are inferred from the claim text.