| 摘要 |
The present disclosure relates to a pump (100, 200) for supplying high-pressure fuel to a common rail fuel injection system. The pump (100, 200) comprises an elongated aperture (109, 209) forming a pumping chamber (111, 211) and a pressurisation chamber (119, 219); a pumping element (113, 213) configured to reciprocate within the elongated aperture (109, 209) to pump fuel from the pumping chamber (111, 211); and pressurisation means for pressurising fuel in the pressurisation chamber (119, 219). The pressurisation chamber (119, 219) extends at least partially around the circumference of the pumping element (113, 213) to reduce leakage from the pumping chamber (111, 211). |
