IP Library Granted Patent US 12679197
Granted Patent B2
US 12679197 · App. 18/473,349 · Granted Jul 14, 2026

Cooling system

Inventors: Ryoma Nishimura (Fujisawa, JP); Kota Kato (Fujisawa, JP)
Assignee: ISUZU MOTORS LIMITED
B60K11/02B60S1/50
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Quick Facts
Patent No.
US 12679197
App. No.
18/473,349
Granted
Jul 14, 2026
Kind
B2
Abstract

A cooling system mounted in a vehicle includes a motor that is a drive source of the vehicle; an inverter that drives the motor; a radiator; a washer liquid tank that stores a cleaning liquid for cleaning a windshield of the vehicle; and a circulation channel that allows the cleaning liquid stored in the washer liquid tank to circulate through the inverter, the motor, the radiator, and the washer liquid tank in an order presented, thereby causing the cleaning liquid to store heat of the motor and the inverter and also causing heat of the cleaning liquid to be dissipated by the radiator.

Claims (17)

1 . A cooling system mounted in a vehicle, the cooling system comprising:

a motor that is a drive source of the vehicle;

an inverter that drives the motor;

a radiator;

a storage tank that stores a cleaning liquid for cleaning a windshield of the vehicle;

a circulation channel that allows the cleaning liquid stored in the storage tank to circulate through the inverter, the motor, the radiator, and the storage tank in an order presented, thereby causing the cleaning liquid to store heat of the motor and the inverter and also causing heat of the cleaning liquid to be dissipated by the radiator;

an intake port disposed in the storage tank protruding from an inner bottom and configured to uptake the cleaning liquid from the storage tank when the windshield is cleaned; and

a supply port disposed in the storage tank protruding from the inner bottom and configured to supply the cleaning liquid from the storage tank to the circulation channel, wherein

a height of the intake port is higher than a height of the supply port.

2 . The cooling system according to claim 1 , wherein

a plurality of supply ports are provided, and the height of the plurality of supply ports are substantially equal.

3 . The cooling system according to claim 1 , wherein

the storage tank comprises a recessed portion recessed in a bottom wall,

the intake port is disposed in the storage tank except in the recessed portion, and

the supply port is disposed in the recessed portion.

4 . The cooling system according to claim 1 , wherein

the plurality of supply ports are disposed at all corners of the storage tank.