Hydrogen or hydrogen rich gas mixture fueled internal combustion engine using premixed direct gas injection

An engine, comprising:

• a combustion chamber configured to receive air from an intake valve of the engine, the intake valve being configured to receive the air from an external environment of the engine;
• a fuel injector comprising:
• a fuel channel configured to receive fuel from a fuel supply;
• a fuel port configured to receive the fuel from the fuel channel;
• an air port configured to draw the air from the combustion chamber of the engine into the fuel injector;
• a premixing tube configured to mix the air from the air port and the fuel from the fuel channel to create an air and fuel mixture and feed the air and fuel mixture into the combustion chamber, and
• a needle valve configured to actuate from a first position to a second position, wherein in the first position the needle valve covers the fuel port and in the second position the fuel port is fluidly connected to the fuel channel;
• a spark plug having an electrode positioned within the combustion chamber, the electrode being configured to ignite the air and fuel mixture;
• and
• a piston configured to actuate in the combustion chamber from the ignited air and fuel mixture,
• wherein a central axis of the premixing tube intersects the electrode of the spark plug such that the air and fuel mixture is sprayed following the central axis from the premixing tube to the electrode.