![]() ![]() Unlike most other companies claiming to be able to rebuild a Piezoelectric fuel injector, we actually can. With the proper equipment to test and refurbish, Injector-Rehab is ready for this task. This process requires highly technical, rare and expensive equipment. A company using a standard port injection machine would not be able to fulfill this requirement in testing. These operating plans are executed as designed by the original manufacture to the specs it would be as NEW. In working with the injector manufactures, we have an operating plan for every Piezoelectric GDI injector ever made. We are able to regenerate the piezo stack back to OEM Specs. Our process restores the crystal (Piezo) stack to its original dimensions and performance. Varying pressure, heat and voltages are used on our test equipment to replicate the conditions the injector was designed to operate under. When the piezo crystal stack does not operate in a certain range, it “forgets” that is is possible to do so.īy operating the injector under specific operating conditions, Injector-Rehab is able to regenerate the Piezo Stack. This condition results in poor idle quality and poor performance under higher engine loads. This will also reduce injector flow rates under high fuel demands, when not often used. This causes slower injector response time. From continued use over time, the piezo crystal stack used in this style of GDI injectors can expand from continued operation at low engine speed. Piezo Stack RegenerationĪ critical step in the remanufacturing process includes piezo stack regeneration. This is enough movement to open and close the nozzle of the fuel injector, controlling the flow of fuel. When electricity is applied to this stack, the total movement is increased to four-thousandths (.004) of an inch. Because this is not enough to move the nozzle which controls the flow of fuel is why the slices are arranged in a stack. This material moves around two-hundred-thousandths (.00002) of an inch when electricity is applied to the “slice” of piezo material inside of the fuel injector. Piezoelectric Fuel injectors have what are called “stacks” of Piezo material in them stacked on top of one another. This results in a change such as pressure or movement in that material. Piezoelectric fuel injector fundamentally works by applying an electrical current to a material. However, piezoelectricity works conversely. ![]() Heat and Pressure can be the mechanical stress. The effect in which a material generates an electrical charge in response to a force (mechanical stress) applied to it is what is known as Piezoelectricity. Fuel Injector Conversion – cc/min to lbs/hr.Troubleshooting and Cleaning Fuel Injectors.Rebuilding a Piezoelectric Fuel Injector.Dynamic Testing and Cleaning Fuel Injectors.Standard Fuel Injector Cleaning and Flow Testing.Fuel Injector Cleaning and Flow Testing Service. ![]()
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