Cooling system for automotive engine or the like

Patent · Tue Nov 18 04:00:00 EST 1986

OSTI ID:7153732

Kubozuka, T

This patent describes an internal combustion engine a structure subject to high heat flux, and a cooling system for removing heat from the structure, the cooling system comprising: a cooling circuit including: a coolant jacket formed about the structure and into which coolant is introduced in liquid form and permitted to boil; a radiator in which gaseous coolant is condensed to its liquid state; a vapor manifold communicating with the coolant jacket; a vapor transfer conduit leading from the vapor manifold to the radiator; separation means disposed in the vapor transfer conduit for separating liquid and gaseous coolant, the separation means including a drain port; a first conduit interconnecting the drain port and the coolant jacket; a drain pump disposed in the first conduit for inducting coolant from the drain port and for pumping same into the coolant jacket; a second conduit leading from the coolant jacket to the first conduit at a location intermediate of the drain port and the pump; and coolant return means for returning liquid coolant from the radiator to the coolant jacket in a manner to maintain the structure immersed in a predetermined depth of liquid coolant.

• Assignee: Nissan Motor Co., Ltd., Yokohama
• Patent Number(s): US 4622925
• OSTI ID: 7153732
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BOILING
COOLANTS
COOLING SYSTEMS
DRAINAGE
ENERGY SYSTEMS
ENERGY TRANSFER
ENGINES
FLUIDS
HEAT ENGINES
HEAT EXCHANGERS
HEAT FLUX
HEAT TRANSFER
INTERNAL COMBUSTION ENGINES
LIQUIDS
PHASE TRANSFORMATIONS
PUMPING
PUMPS
RADIATORS
VAPOR CONDENSATION
VEHICLES