Vehicle engine system
First Claim
1. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
- an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan and the electric motor mechanically drives a further power consumer unit.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a vehicle engine system. The engine system includes an internal combustion engine, a cooler of a cooling circuit, an electric generator driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan for moving air through the cooler, all disposed in an engine compartment. An electric motor is powered by the generator and mechanically drives the fan through an output shaft which is mechanically connected to the fan. The output shaft of the motor is disposed in the engine compartment near a mechanical power take-off of the engine. The mechanical power take-off includes a belt pulley connected to a free end of an engine crankshaft.
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Citations
16 Claims
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1. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan and the electric motor mechanically drives a further power consumer unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
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an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan; and a power electronics unit which controls the rotational direction and/or the rotation speed and/or the torque of the electric motor in response to a control device, the power electronics unit controlling the electric motor as a function of a power demand of a consumer of electrical power other than the cooling fan.
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13. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
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an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan; and a power electronics unit which controls the rotational direction and/or the rotation speed and/or the torque of the electric motor in response to a control device, the power electronics unit controlling the electric motor as a function of a power demand of a consumer of electrical power which is part of a working tool which can be coupled to the vehicle.
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14. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
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an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan; and a power electronics unit which controls the rotational direction and/or the rotation speed and/or the torque of the electric motor in response to a control device, the power electronics unit controlling the electric motor as a function of a demand of an air compressor.
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15. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
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an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan; and a power electronics unit which controls the rotational direction and the rotation speed and/or the torque of the electric motor in response to a control device, the power electronics unit controlling the rotation speed and/or the torque of the electric motor as a function of a temperature sensed by at least one temperature sensor.
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16. A vehicle engine system having an internal combustion engine, a cooler of a cooling circuit, a generator generating electrical energy and mechanically driven by the engine from a side of the engine which is other than that which faces the cooler, and a fan adjacent to the cooler for moving air through the cooler, the fan, the engine and the cooler being disposed in an engine compartment, characterized by:
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an electric motor powered by the electrical energy generated by the generator and mechanically driving the fan; and a power electronics unit which controls the rotational direction and/or the rotation speed and/or the torque of the electric motor in response to a control device, the power electronics unit including a frequency converter which converts a DC voltage into an AC voltage so that the electric motor can be operated at a variable desired rotation speed.
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Specification