Invention Grant
- Patent Title: Internal combustion engine and method to increase the temperature of a liquid in the internal combustion engine
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Application No.: US16338312Application Date: 2016-09-30
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Publication No.: US11639693B2Publication Date: 2023-05-02
- Inventor: Jeremiah C. Nethercutt , Emrah Arslanturk , Weiwen Wang , James A. Cramer
- Applicant: Cummins Inc.
- Applicant Address: US IN Columbus
- Assignee: Cummins Inc.
- Current Assignee: Cummins Inc.
- Current Assignee Address: US IN Columbus
- Agency: Faegre Drinker Biddle & Reath LLP
- International Application: PCT/US2016/054604 WO 20160930
- International Announcement: WO2018/063267 WO 20180405
- Main IPC: F02D41/02
- IPC: F02D41/02 ; F01N3/20 ; F01P3/20 ; F02B37/22 ; F02D13/02 ; F02D41/14 ; G05D23/19 ; G05B15/02

Abstract:
A method, controller, and internal combustion engine including the controller and operable in accordance with the method by: determining a temperature of a working liquid in an engine block circuit (31, 35) of the internal combustion engine (10), the working liquid comprising a cooling liquid or a lubrication liquid; operating the internal combustion engine (10); engaging a thermal load responsive to the temperature of the liquid being below a first temperature threshold, wherein engaging the thermal load comprises at least one of increasing a pumping load of the internal combustion engine (10), or changing an air/fuel ratio, thereby adding heat to the engine block circuit (31, 35); controlling the thermal load as a function of the temperature of the liquid; and disengaging at least a portion of the thermal load responsive to the temperature of the liquid being above the low temperature limit.
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