Fuel injector adaptor for conversion of single engines to dual fuel engines

An engine capable of using a first fuel having at least one combustion chamber, and adapted to use both the first fuel and a second fuel, comprising:

• a first fuel injector means, associated with each of said at least one combustion chamber, said fuel injector having a discharge nozzle at one end for flowing the first fuel to a corresponding one of said at least one combustion chamber;
• an adaptor, associated with each of said at least one combustion chamber, for adapting a seat of the engine originally provided for receiving said first fuel injector means, comprising:
• a body including a bore with side walls for receiving and seating said fuel injector means;
• a plurality of spaced apart protuberances, each of the protuberances extending from said side walls and terminating at a distal free end, for limiting movement of said discharge nozzle of said first fuel injector means;
• an inlet for receiving the second fuel;
• and
• an adaptor outlet hole, communicating with said discharge nozzle and said inlet, said adaptor outlet hole being formed through a portion of said body which is to be fitted within a seat of the engine originally provided for receiving said first fuel injector means.