Cooling system for automotive engine

Patent · Tue Mar 11 04:00:00 EST 1986

OSTI ID:5688204

Hirano, Y

A cooling system for an internal combustion engine is described consisting of: a coolant jacket formed about structure of the engine subject to high heat flux, the coolant jacket being arranged to receive coolant in liquid form and discharge same in gaseous form; a radiator; a first conduit leading from the radiator for introducing liquid coolant from the radiator into the coolant jacket; a second conduit leading from the coolant jacket to the radiator through which gaseous coolant is transferred from the coolant jacket to the radiator for condensation therein; a coolant reservoir; a sensor responsive to one of the temperature and pressure within the coolant jacket; a third conduit leading from the radiator to the reservoir the third conduit being arranged to communicate with the reservoir in a manner to define a vapor trap; a valve arrangement which controls the third conduit; and first means responsive to the sensor for operating the valve arrangement in a manner to open the third conduit when the sensor indicates an overheat condition of the system and permit gaseous coolant to vent through the third conduit to the reservoir, the gaseous coolant being released into th reservoir in a manner to bubble through liquid coolant stored therein.

• Assignee: Nissan Motor Co., Ltd., Yokohama
• Patent Number(s): US 4574747
• OSTI ID: 5688204
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BUBBLES
CONTROL EQUIPMENT
COOLANTS
COOLING SYSTEMS
DESIGN
ENERGY SYSTEMS
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
HEAT EXCHANGERS
HEAT FLUX
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
PRESSURE GAGES
RADIATORS
THERMOMETERS
VALVES
VAPOR CONDENSATION
VEHICLES