COMPRESSING PLUNGER AND A FUEL INJECTING PUMP FOR DIESEL ENGINE HAVING THE SAME, WHICH HAS A PRE-PILOT INJECTION STEP, A PILOT INJECTION STEP, AND A MAIN INJECTION STEP

摘要

PURPOSE: A compressing plunger and a fuel injecting pump for diesel engine having the same are provided to increase output and fuel ratio and prevent diesel knocking.;CONSTITUTION: A compressing plunger comprises a release groove(18), a main injection helix side(26), a free pilot injection helix side(28), a pilot injection helix side(30), and groove portions(32,34). The release groove is formed on the exterior of a plunger through a plunger room(16) of the barrel(14) in a longitudinal direction. The pilot injection helix side can block up the spill port with the free pilot injection helix side. The groove portion is the free pilot injection helix side and pilot injection helix and locates the pilot injection helix side and main injection helix.;COPYRIGHT KIPO 2012