CAUSE OF PROBLEMS:   PHYSICAL PREPARATION OF LIQUID FUEL FOR COMBUSTION
The diesel engine was originally conceived to be the most efficient at turning heat into work, a task at which it excels and still offers much untapped potential. This potential and its objectionable combustion products are both affected by how fuel is physically prepared for combustion.
Sequence of Steps Prior to and Necessary for Ignition
These steps occur in sequence.
Steps 1a and 1c cause the problems addressed by GPDT's durable mechatronic injector technology.
- Step 1. High pressure fuel is injected into the engine combustion chamber.
- Step 1a. The injector needle lifts off of its seat, opening a passageway between the pressurized fuel and the injector nozzles.
- Step 1b. Fuel pressure causes a jet of liquid fuel to exit each injector nozzle.
- Step 1c. The injector needle closes by contacting its seat, stopping the injection of fuel.
- Step 2. The jet breaks up and atomizes into a cloud of small droplets.
- Step 3. Fuel evaporates from the surface of each droplet.
- Step 4. Fuel vapor mixes with oxygen.