Cooling system for radiator and condenser of vehicles with an air conditioner and method of operating the same

Patent · Tue Apr 21 00:00:00 EDT 1987

OSTI ID:6547514

Shimada, Y; Obata, Y; Takeoka, T; Katoh, T

A cooling system is described for radiator and condenser of vehicles with an air conditioner having a first blower and a second blower for cooling the radiator and the condenser so as to cool the engine cooling water and so as to condense the coolant, and a cooling cycle operation switch which comprises: (a) engine cooling water temperature switch (SW1) connected between a power supply and the first blower and turned on and off in accordance with high and low temperature conditions of the engine cooling water; (b) relay switching means for controlling the first and second blowers in accordance with the on-off conditions of the cooling cycle operation switch; and (c) a control circuit having an on-off switch and a solenoid and connected between the relay switching means and either the first blower or the second blower, the solenoid of the control circuit being connected to switches (SW3, SW4 and SW5) for electrical equipment such as headlights, wipers; whereby, when any one of the switches for the electrical equipment of the vehicle is turned off, the first and second blowers are operated at normal speed through the relay switching means and the control circuit, upon the operation of the cooling cycle operation switch, while when any one of the switches for the electrical equipment is turned on, the first blower is on-off controlled through the engine cooling water temperature switch (SW1) and the second blower remains operated through the relay switching means.

• Assignee: Nissan Motor Co., Ltd., Yokohama
• Patent Number(s): US 4658595
• OSTI ID: 6547514
• Resource Relation: Patent File Date: Filed date 26 Nov 1985
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
ENGINES
COOLING SYSTEMS
VEHICLES
AIR CONDITIONERS
BLOWERS
CONDENSERS
COOLANTS
RADIATORS
RELAYS
SOLENOIDS
SWITCHES
WATER
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
HEAT EXCHANGERS
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
330603* - Vehicle Design Factors- Engine System