Monitoring of closed circuit liquid cooling systems particularly in internal combustion engines
OwnerRobert M. Atkinsinventor
Life of this patent
Estimating the term…
Abstract
Early stage detection of engine liquid cooling problems is provided with temperature, pressure and other sensors and associated logic circuits configured for detecting alarm conditions including below normal static coolant pressure coupled with an elevated coolant temperature, above normal static coolant pressure, below normal coolant pump pressure condition, coolant voids due to coolant loss or boiling, and external steam or liquid leakage from the cooling system. A gauge displays the difference between coolant pump output pressure and static coolant pressure.
Claims12
An engine cooling monitoring system for an engine having a liquid cooling system including a coolant pump for sustaining flow of liquid coolant in said cooling system, comprising:
- a coolant temperature sensor;
- a first pressure sensor arranged and positioned for sensing a static pressure of said cooling system;
- logic circuits connected to said coolant temperature sensor and said first pressure sensor for detecting a first alarm condition indicative of below normal static coolant pressure coupled with an elevated coolant temperature and a second alarm condition indicative of above normal static coolant pressure;
- and
- an alarm connected for indicating said first alarm condition and said second alarm condition to an operator of said engine.
A engine cooling monitoring system for an internal combustion engine having a closed circuit liquid cooling system including a coolant pump for sustaining flow of liquid coolant in said cooling system, comprising at least one leak detection sensor positioned for detecting steam or liquid leakage from a seal of said cooling system.
Dependencies are inferred from the claim text.