Invention Application
- Patent Title: ENGINE INTAKE AIR SYSTEM INCLUDING CAC BYPASS AND SEPARATE BYPASS HEATER, AND HIGH-EFFICIENCY SPARK-IGNITED DIRECT INJECTION LIQUID PROPANE ENGINE ARCHITECTURES INCLUDING SAME
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Application No.: US16497594Application Date: 2018-03-21
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Publication No.: US20210108580A1Publication Date: 2021-04-15
- Inventor: J. Steven Kolhouse , Daniel J. Mohr , Adrian P. Dale , Samuel C. Geckler , Leon A. LaPointe , David J. Stroh , Anthony Kyle Perfetto , Robin J. Bremmer , Ryan Edward Schultz
- Applicant: CUMMINS INC.
- Applicant Address: US IN Columbus
- Assignee: CUMMINS INC.
- Current Assignee: CUMMINS INC.
- Current Assignee Address: US IN Columbus
- International Application: PCT/US2018/023609 WO 20180321
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02B29/04

Abstract:
An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler (“CAC”), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.
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