COOLING DEVICE FOR VEHICLE
First Claim
Patent Images
1. A cooling device for vehicle comprising:
- an electric motor;
an engine cooling pump configured to allow an engine cooling water to flow by rotary power of the electric motor;
a power-control unit cooling pump configured to allow a cooling liquid for power control unit to flow by the rotary power of the electric motor; and
a differential mechanism which makes a flowrate of the engine cooling pump different from a flowrate of the power-control unit cooling pump by controlling transmission of the rotary power from the electric motor.
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Abstract
A cooling device for vehicle includes: an electric motor; an engine cooling pump; a power-control unit cooling pump; and a differential mechanism. The engine cooling pump is configured to allow an engine cooling water to flow by rotary power of the electric motor. The power-control unit cooling pump is configured to allow a cooling liquid for power control unit to flow by the rotary power of the electric motor. The differential mechanism makes a flowrate of the engine cooling pump different from a flowrate of the power-control unit cooling pump by controlling transmission of the rotary power from the electric motor.
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Citations
7 Claims
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1. A cooling device for vehicle comprising:
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an electric motor; an engine cooling pump configured to allow an engine cooling water to flow by rotary power of the electric motor; a power-control unit cooling pump configured to allow a cooling liquid for power control unit to flow by the rotary power of the electric motor; and a differential mechanism which makes a flowrate of the engine cooling pump different from a flowrate of the power-control unit cooling pump by controlling transmission of the rotary power from the electric motor. - View Dependent Claims (2, 3, 4, 5)
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6. A cooling device for vehicle comprising:
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an electric motor; an engine cooling pump configured to allow an engine cooling water to flow by rotary power of the electric motor; an oil pump configured to allow an oil for transaxle to flow by the rotary power of the electric motor; and a differential mechanism which makes a flowrate of the engine cooling pump different from a flowrate of the oil pump by controlling transmission of the rotary power from the electric motor.
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7. A cooling device for vehicle comprising:
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an electric motor; a power-control unit cooling pump configured to allow a cooling liquid for power control unit to flow by rotary power of the electric motor; an oil pump configured to allow an oil for transaxle to flow by the rotary power of the electric motor; and a differential mechanism which makes a flowrate of the power-control unit cooling pump different from a flowrate of the oil pump by controlling transmission of the rotary power from the electric motor.
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Specification