摘要:
The invention relates to a thermal management method for operating a thermal management system (100, 102) of an internal combustion engine (10). The thermal management system (100, 102) comprises at least one fluid chamber (12) which is arranged at least partially around a cylinder head (74) of a cylinder (70) of the internal combustion engine (10) and has at least one inlet line (14) and at least one outlet line (16), the fluid chamber (12) being connected to at least one coolant pumping device (20) for pumping a coolant, and to at least one heat sink. According to the invention, a cylinder head temperature sensor and/or a fluid chamber temperature sensor (58) is provided, a volume flow of the coolant delivery device (20) being controllable depending on an engine speed and/or a fluid chamber temperature and/or an engine load, in particular by actuation of at least the first valve (18). According to the thermal management method, when the temperature in the fluid chamber (12) rises, in particular after a warm-up phase and when the engine speed remains constant or drops, the volume flow of the coolant through the heat sink is at least temporarily increased, and when the engine speed remains constant or increases by no more than 100 rpm, with engine load being reduced, in particular by at least 30%, the volume flow of the coolant through the heat sink is not reduced, and in particular is not reduced after at least one minute following the load change, and more particularly is not reduced when a fluid chamber (12) temperature is in the 60 to 100° C. range.
摘要:
The invention relates to a thermal management method for operating a thermal management system (100, 102) of an internal combustion engine (10). The thermal management system (100, 102) comprises at least one fluid chamber (12) which is arranged at least partially around a cylinder head (74) of a cylinder (70) of the internal combustion engine (10) and has at least one inlet line (14) and at least one outlet line (16), the fluid chamber (12) being connected to at least one coolant pumping device (20) for pumping a coolant, and to at least one heat sink. According to the invention, a cylinder head temperature sensor and/or a fluid chamber temperature sensor (58) is provided, a volume flow of the coolant delivery device (20) being controllable depending on an engine speed and/or a fluid chamber temperature and/or an engine load, in particular by actuation of at least the first valve (18). According to the thermal management method, when the temperature in the fluid chamber (12) rises, in particular after a warm-up phase and when the engine speed remains constant or drops, the volume flow of the coolant through the heat sink is at least temporarily increased, and when the engine speed remains constant or increases by no more than 100 rpm, with engine load being reduced, in particular by at least 30%, the volume flow of the coolant through the heat sink is not reduced, and in particular is not reduced after at least one minute following the load change, and more particularly is not reduced when a fluid chamber (12) temperature is in the 60 to 100° C. range.
摘要:
The invention relates to a thermally insulated Lubrication system (100) for the lubrication of rotating or oscillating components with at least one oil suction pipe (3) arranged in an oil reservoir (1), an oil pump (4) connected to the oil suction pipe (3), and a heat source (7) connected to the oil pump (4) and downstream from this, further connecting lines (10) for feeding oil to lubrication points (11) that are structurally integrated into a metal structural environment (63) of a metal housing, after which oil is returned to the oil reservoir (1).It is proposed that at least one connecting line (10) between the heat source (7) and the lubrication point (11) downstream from the heat source has internal insulation (13) on its inside walls, wherein the thermal conductivity of the internal insulation (13) is 5% or less than the thermal conductivity of the connecting lines or of the rest of the structural environment (63), and that the heat source (7) is switched off, or at least its heat output is reduced, when a first upper oil limit temperature is reached.By improved insulation, fast heating and hence a lowering of fuel consumption in the cold starting phase is achieved.
摘要:
The invention relates to a thermally insulated Lubrication system (100) for the lubrication of rotating or oscillating components with at least one oil suction pipe (3) arranged in an oil reservoir (1), an oil pump (4) connected to the oil suction pipe (3), and a heat source (7) connected to the oil pump (4) and downstream from this, further connecting lines (10) for feeding oil to lubrication points (11) that are structurally integrated into a metal structural environment (63) of a metal housing, after which oil is returned to the oil reservoir (1).It is proposed that at least one connecting line (10) between the heat source (7) and the lubrication point (11) downstream from the heat source has internal insulation (13) on its inside walls, wherein the thermal conductivity of the internal insulation (13) is 5% or less than the thermal conductivity of the connecting lines or of the rest of the structural environment (63), and that the heat source (7) is switched off, or at least its heat output is reduced, when a first upper oil limit temperature is reached.By improved insulation, fast heating and hence a lowering of fuel consumption in the cold starting phase is achieved.