Method and arrangement for control of cooling and an engine
AssigneeScania CV AB
InventorRolf Dybdal
Life of this patent
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Abstract
At least one cooling device for a motor vehicle is aircooled by an air flow generated by a cooling fan of the motor vehicle. An air flow configuration of the cooling fan is determined by the fan's degree of protrusion from a fan ring running in the circumferential direction of the fan, preferably in air flow communication with a fan cowling. The air flow configuration is optimized in a manner controlled according to need by relocation of a movable portion of the fan ring in an axial direction of the fan. The disclosed method of controlling the air flow configuration is summarized above. A device performing the method and an engine for the motor vehicle including the device are also disclosed.
Claims19
A method for controlling cooling by adjusting an air flow configuration of a motor vehicle cooling fan, wherein the vehicle includes an engine, a charge air cooler for the engine, intake air, at least one cooling device for the engine, and the motor vehicle cooling fan which is for the cooler for charge air for the engine and for the at least one cooling device;
- the method comprising:
- generating an air flow by the fan past the at least one cooling device and the cooler for charge air for the engine,
- determining an air flow configuration by the fan's degree of protrusion from a fan ring which extends in air flow communication with a fan cowling, the fan ring and the cowling extending in a circumferential direction around the fan, and
- optimizing the air flow configuration by selecting, by a control device, a degree of protrusion of the fan from the fan ring by relocating a movable portion of the fan ring in the axial direction of the fan.
A device for control of cooling by an air flow configuration of a motor vehicle's cooling fan, wherein the vehicle includes an engine, a cooling fan for the engine, and a fan ring circumferentially around the fan, a radiator for radiator liquid and a cooler for charge air for the engine being placed and configured to be air-cooled by an air flow generated by the fan, configuration of said air flow being intended to be affected by the fan having an adjustable degree of protrusion from the fan ring, a control device being operable to optimize said air flow configuration, in a manner controlled according to need, by adjusting said degree of protrusion of said fan from said fan ring, said fan ring having a movable portion which is movable in the axial direction of the fan by action of the control device.
Dependencies are inferred from the claim text.