초록 ▼

In an internal combustion engine cooling system wherein the coolant is boiled and the vapor produced condensed in a radiator in a manner that the rate of condensation under light engine load is maintained at a level sufficiently low to raise the pressure within the system and thus raise the boiling

In an internal combustion engine cooling system wherein the coolant is boiled and the vapor produced condensed in a radiator in a manner that the rate of condensation under light engine load is maintained at a level sufficiently low to raise the pressure within the system and thus raise the boiling point of the coolant while under heavy load increased to the point of lowering the pressure in the system and thus lower the coolant boiling point, an arrangement is provided to reduce the heat exchange capacity of the radiator when the rate of condensation therein due to uncontrollable external influences becomes excessive. When the engine is stopped, coolant is admitted to fill the system. To purge any air or like non-condensible which finds its way into the system, liquid coolant is pumped in to overfill the system and flush same out during engine warm-up.

대표청구항 ▼

In a method of cooling a device, the steps of: boiling a liquid coolant in a coolant jacket to produce a vapor; condensing the vapor produced in said boiling step, in a radiator; increasing the boiling point of said liquid coolant by reducing the heat exchange capacity of said radiator in the event

In a method of cooling a device, the steps of: boiling a liquid coolant in a coolant jacket to produce a vapor; condensing the vapor produced in said boiling step, in a radiator; increasing the boiling point of said liquid coolant by reducing the heat exchange capacity of said radiator in the event that the rate of condensation exceeds a predetermined maximum value and the boiling point of said liquid coolant falls below a predetermined minimum value, wherein said coolant jacket and said radiator form part of a cooling system, and including the step of selectively sealing the cooling system to selectively permit pressure in said system to vary above or below atmospheric. In a method of cooling a device, the steps of: boiling a liquid coolant in a coolant jacket to produce a vapor; condensing the vapor produced in said boiling step, in a radiator; sensing the level of coolant in said coolant jacket; pumping liquid coolant from said radiator to said coolant jacket in response to said level sensing step; sensing a difference in pressure between pressure in said radiator and atmospheric pressure; and reducing the heat exchange capacity of said radiator in the event that the sensed difference in pressure indicates that the rate of condensation exceeds a predetermined maximum value.