Fuel injection system

The system of 1, further comprising:

• a plunger means positioned in said body adjacent said fuel injection channel, said plunger means for stopping a flow of fuel through said fuel injection channel to said mixing chamber.

The system of 2, said plunger means comprising:

• a solenoid connected to said body;
• and
• a plunger member extending into said body, said plunger member movable so as to seal an end of said fuel injection channel.

The system of 3, further comprising:

• a processor means connected to said solenoid, said processor means for actuating said solenoid in response to a fuel demand of the engine.

The system of 1, said first air channel having a greater diameter than said second air channel, said first air channel having one end opening to an exterior of said body, said first air channel having another end communicating with an intake manifold of the engine.

The system of 5, said first air channel having a second mixing chamber means formed within said body, said second mixing chamber means positioned at an outlet of said second air channel, said second mixing chamber means for receiving an air/fuel mixture from said first mixing chamber means.

The system of 1, said first valve means and said second valve means being mutually cooperative in relation to the movement of the accelerator.

The system of 1, said first valve means comprising:

• a rotary valve rotatably positioned in said body in said first air channel;
• and
• a stepper motor means operatively connected to said rotary valve for rotating said valve in response to a movement of the accelerator.

The system of 1, said fuel injection channel having an inlet port and an outlet port, said outlet port opening to said first mixing chamber means, said second valve means comprising:

• a rotary valve rotatably positioned in said body between said inlet port and said outlet port of said fuel injection channel;
• and
• a stepper motor means operatively connected to said rotary valve for rotating said valve in response to a movement of the accelerator.

The system of 1, said second air channel having one end opening to the atmosphere, said second air channel having another end opening to said first air channel, said first mixing chamber means formed along said second air channel.

The system of 10, said third valve means comprising:

• a first rotary valve rotatably positioned in said body between said one end of said second air channel and said first mixing chamber means;
• and
• a second rotary valve rotatably positioned in said body between said first mixing chamber means and said other end of said second air channel.

The system of 11, said third valve means further comprising:

• a first stepper motor operatively connected to said first rotary valve for rotating said valve in response to an atmospheric or engine condition;
• and
• a second stepper motor means operatively connected to said second rotary valve for rotating said valve in response to a movement of the accelerator.

The system of 12, said first valve means comprising:

• a third rotary valve positioned in said body in said first air channel;
• and
• a third stepper motor means operatively connected to said third rotary valve for rotating said third rotary valve in response to a movement of the accelerator.

The system of 13, said fuel injection channel having an inlet port and an outlet port, said outlet port opening to said first mixing chamber means, said second valve means comprising:

• a fourth rotary valve rotatably positioned in said body between said inlet port and said outlet port of said fuel injection channel;
• and
• a fourth stepper motor means operatively connected to said fourth rotary valve for rotating said fourth rotary valve in response to a movement of the accelerator.

The system of 1, further comprising:

• a fuel pump means connected to said fuel injection channel, said fuel pump means for passing fuel into said fuel injection channel at generally constant pressure.

The system of 15, said fuel pump means comprising:

• a fuel chamber having an inlet and an outlet, said outlet connected to said fuel injection channel of said body, said chamber having a given height corresponding to a desired fuel pressure entering said fuel injection channel.

The system of 16, said fuel pump means further comprising:

• an overflow chamber fluidically communicating with said fuel chamber, said overflow chamber receiving fuel when said fuel chamber is filled above said desired height, said overflow chamber having an overflow outlet port formed therein.

The system of 17, said fuel pump means further comprising:

• a pump connected to a supply of fuel and to said inlet of said fuel chamber, said pump for passing fuel from said supply and from said overflow chamber to said fuel chamber, said overflow outlet fluidically connected to said pump.

The system of 4, said processor means further comprising:

• a plurality of sensors electrically connected thereto, said plurality of sensors for sensing engine temperature, intake manifold pressure, and engine rotation.

The system of 19, said processor means further comprising:

• a first mixing chamber pressure sensor electrically connected thereto, said processor means for controlling said third valve means relative to engine rotation speed, intake manifold pressure, engine temperature, and first mixing chamber pressure.