Injection pump for supplying diesel to diesel engine of motor vehicle, has control chamber and control piston limited on side turned towards pump chamber, where pressure caused in control chamber supports spring effect

摘要

The pump has a housing (1) provided with a working cylinder (2) and a piston (3), where the piston limits a pump chamber (4). A control piston (9) of a suction valve limits a control chamber (10), which is connected with an outlet of a pressure control valve (12) by a control line. A closing member (8) and the control piston are rigidly connected. A spring (7) displaces the control piston and the closing member. The control chamber and the control piston are limited on a side turned towards the pump chamber, where pressure caused in the control chamber supports spring effect.