Fuel injection unit for a diesel engine cylinder

摘要

A fuel injection unit for each cylinder of a diesel engine includes a housing which accommodates a piston pump and an injection nozzle. The piston pump includes a cylinder liner in which a piston runs and controls a flow passage radially extending in the cylinder liner. The flow passage communicates with a supply space which is provided between the housing and the cylinder liner and is divided in vicinity of the flow passage by a baffle sleeve. The so formed two chambers are connected to separate inlet and outlet lines, i.e. that one chamber is connected to the inlet line while the other chamber communicates with the outlet line.