Thermo King Corporation

Ricardo Spiro DeGrego

Jay L Hanson

Herman H Viegas

Robert K Havemann

Thomas R Sem

Steve Brenneman

The present invention provides an apparatus and method of operating a refrigeration system. The apparatus and method includes providing a fuel pressure monitoring device that is disposed along a fuel line, automatically shutting down the engine if the fuel pressure meets a first condition, restarting the engine, and operating the engine in an unrestricted mode if the fuel pressure monitoring device records a second condition and shutting down the engine if the fuel pressure monitoring device does not record the second condition. An apparatus and method of operating a diesel engine of a refrigeration system that is coupled to an inline fuel injection system is also disclosed.

Refrigeration system with low-fuel shutdown

A low fuel shut-off system for a Diesel engine which includes a fuel supply circuit comprising a main fuel tank, a transfer pump, a filter array, an injection pump, injection nozzles, and an auxiliary fuel tank in the fuel circuit between the transfer pump and the injection pump. A level sensor in the auxiliary fuel tank provides a signal when the fuel level drops below a predetermined point, with the signal being used by associated electrical control to shut down the engine while a supply of fuel still remains in the fuel supply circuit between the auxiliary tank and the injection pump, and in the auxiliary tank, which is sufficient to start the engine without priming.

Growing community of inventors

Northfield, MN, United States of America

Ricardo Spiro DeGrego