| 摘要 |
The present invention relates to a high pressure fuel pump (12) comprising an inlet channel (14) in connection with a first chamber (16), through which inlet channel fuel is led to the first chamber (16), a second chamber (18) arranged in connection with the first chamber (16), an outlet valve (40) arranged in connection with the second chamber (18) and an inlet valve (20) comprising a piston (22), with a first end section (24) and a second end section (26). The piston (22) is moveably arranged with the first end section (24) in a third chamber (28), and the second end section (26) is moveably arranged between the first chamber (16) and the second chamber (18). A press element (34) is arranged to act on the piston (22) with a mechanic force (Fs), so that the piston (22) strives to be positioned with the second end section (26) closing the connection between the first chamber (16) and the second chamber (18). As a result, the inlet valve (20) is in a closed state. The inlet valve (20) may be controlled via an electromagnetic unit (38). |
