Bosch Piezo injectors - Assembling, disassembling and testing | Piezoelectric injector repair
Bosch Piezo injectors - Assembling, disassembling and testing
This video illustrates how the Bosch Piezo injectors are disassembled, repaired assembled and tested in the FUEL SOLUTION workshop in India.
FUEL SOLUTION Repair a wide range of Common Rail Injection System and repairing Bosch and may other brands.
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#Injection
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This video illustrates how the Bosch Piezo injectors are disassembled, repaired assembled and tested In Bosch EPS205 Fuel Solution
Hello friends aaj ke is video me Bosch Piezo Injector kese Repair karna h bataya h
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Piezo injector for common-rail system
Extremely compact for high-precision fuel injection
The rapidly switched CRI3 piezo injector injects into the cylinder the amount of fuel required for economical combustion, independent of the driving situation. The third-generation high-performance piezo injectors enable a high degree of freedom when designing the injection characteristic and allow up to ten individual injections per injection cycle.
up to
2,700 bar
pressure for very high motor performance with low consumption
up to
ten
individual injections per injection cycle for quiet and highly efficient combustion
low fuel consumption
and reduced emissions are made possible through extremely short injection intervals.
Common-rail system with piezo injector
Modular design for numerous applications
Piezo injectors made by Bosch are available for pressure levels between 2,000 bar and 2,700 bar. They are used for the premium car segment and in light duty vehicles. The injectors have a modular construction and can be adapted to the customer's needs. The variants tailor-made for each application scenario differentiate themselves with regard to, for example, lifetime, nozzle design, and injector length.
As the piezo actuator is integrated in the housing, the injectors are significantly slimmer than solenoid valve injectors and thus require much less installation space. Thanks to their robust piezo principle, the injectors are well prepared for different fuel qualities.
Operation of the piezo injector
The rapidly switching CRI3 piezo injector allows short injection intervals which inject into the cylinder the amount of fuel required for economical combustion, independent of the driving situation. Up to ten individual injections are possible per injection cycle. In addition, the injection process can be designed with high flexibility. Using multiple injections, the engine's fuel consumption and CO₂, pollutant, and noise emissions can be reduced.
Control is via a piezo actuator made of several hundred layers of a piezo ceramic. The ceramic expands by a few thousandths of a millimeter as soon as voltage is applied, setting the jet needle in motion. This coupling of actuator and nozzle needle enables the very short reaction times and very small preinjection quantities.
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