Boost compensator

Boost compensators are used in turbocharged engines to compensate the fuel injection quantity in accordance with the boost pressure.
This device consists of an (1) actuator, (2) pellet, (3) arm, and (4) adjusting screw.
If the boost pressure is low (such as during sudden acceleration), excess fuel injection is suppressed to prevent black smoke from being generated, etc.
If the boost pressure is high, an adequate fuel injection quantity is ensured to generate sufficient output.
During cold starts, the pellet operates to enable adequate fuel injection and ensure good startability.

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