System for controlling a diesel engine to provide safe operation in an explosive atmosphere

Claim 1

IN A SAFETY CONTROL SYSTEM FOR A DIESEL ENGINE OF THE TYPE HAVING THE FOLLOWING KNOWN FEATURES: (A) A WATER-COOLED EXHAUST MANIFOLD; (B) AN EXHAUST GAS CONDITIONER CONTAINING A LEVEL OF WATER IN A SUMP; (C) AN EXHAUST LINE CARRYING EXHAUST GASES FROM THE MANIFOLD TO THE CONDITIONER; THE IMPROVEMENT THAT COMPRISES THE COMBINATION OF ELEMENTS DESIGNATED AS ELEMENTS G TO K INCLUSIVE AND DEFINED AS FOLLOWS: ELEMENT G, AN EXHAUST ELBOW CARRYING THE EXHAUST GASES FROM THE MANIFOLD TO THE EXHAUST LINE; ELEMENT H, A CLOSED WATER JACKET SURROUNDING THE ELBOW; ELEMENT I, A WATER CONDUIT CONNECTED TO THE EXHAUST GAS CONDITIONER (B) AND TO THE CLOSED WATER JACKET (H); ELEMENT J, A WATER PUMP IN THE WATER CONDUIT (I); AND ELEMENT K, A WATER TUBE DISPOSED IN THE EXHAUST ELBOW (G) WITH ITS UPPER END EXTENDING THROUGH THE WALL OF THE ELBOW BY WAY OF A WATER-TIGHT JOINT AND PROJECTING INTO THE CLOSED WATER JACKET (H) AND WITH ITS LOWER END DISPOSED ON THE CENTER LINE OF THE DISCHARGE END OF THE ELBOW, AND EXTENDING TO A POINT BELOW THE LEVEL OF THE WATER-COOLED EXHAUST MANIFOLD (A).