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US 10,808,655 B2Granted
Charge flow introducer
AssigneeCummins Inc.
InventorsSandesh R. Patil, Joshua Bradley Bettis, Yogesh Jagannath Patil
Life of this patent
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Abstract
Methods and devices are disclosed for introducing a fresh airflow, crankcase ventilation gases, fuel, and charge bypass flow upstream of a pressure source of an internal combustion engine.
Claims27
A method, comprising:
- receiving a fresh airflow in a flow passage of an introducer including a body defining the flow passage, the body mounted upstream of an intake of an internal combustion engine system;
- receiving crankcase ventilation gases from the internal combustion engine into the flow passage at the body of the introducer through a first inlet of the introducer;
- receiving a fuel flow into the flow passage at the body of the introducer through a second inlet of the introducer;
- receiving a charge bypass flow into the flow passage at the body of the introducer through a third inlet of the introducer;
- delivering the fresh airflow, the crankcase ventilation gases, the fuel flow, and the charge bypass flow from the introducer to provide a charge flow;
- and
- pressurizing the charge flow downstream of the introducer, wherein the charge bypass flow is a returned portion of the pressurized charge flow.
4 more elements
A system, comprising:
- a pressure source including an inlet and an outlet, the pressure source operable to pressurize at least a portion of a charge flow received by the pressure source through the inlet and to provide the pressurized portion of the charge flow to the outlet;
- and
- an introducer mounted upstream of the inlet that includes a body defining a flow passage configured to receive a fresh airflow, the body of the introducer including:
- a first inlet configured to receive crankcase ventilation gases from an internal combustion engine and provide the crankcase ventilation gases into the flow passage of the introducer;
- a second inlet configured to receive a fuel flow and provide the fuel flow into the flow passage of the introducer;
- and
- a third inlet configured to receive a charge bypass flow and provide the charge bypass flow into the flow passage of the introducer, wherein the introducer is configured to deliver the fresh airflow, the crankcase ventilation gases, the fuel flow, and the charge bypass flow to provide the charge flow for pressurization by the pressure source.
4 more elements
An apparatus for introducing a charge flow upstream of an internal combustion engine, comprising:
- an introducer mounted upstream of the engine, including a body defining an axial flow passage configured to receive a fresh airflow, and the body including a first inlet in flow communication with the axial flow passage configured to provide a flow of crankcase ventilation gases to the flow passage, the body of the introducer further including a second inlet in flow communication with the flow passage configured to provide a flow of fuel to the flow passage, and the body of the introducer further including a third inlet in flow communication with the flow passage configured to provide a charge bypass flow to the flow passage.
Dependencies are inferred from the claim text.