发明名称 |
Method for the direct injection of fuel into an internal combustion engine |
摘要 |
A method for the direct injection of fuel into an internal combustion engine, wherein a high-pressure pump (4) with a variable flow rate supplies the fuel to a common rail (3), which in turn supplies the fuel to a series of injectors (2); the flow rate of the high-pressure pump (4) is controlled by choking each pump stroke by varying the closure time of an intake valve (16) of said high-pressure pump (4); the mechanical actuation of the high-pressure pump (4) is timed so that each injection interval (I) is located at the beginning of a respective choking action; and each pump stroke is choked by at least an angular interval having a duration no shorter than that of the injection intervals (I) irrespective of the quantity of fuel to be supplied to the common rail (3) in such a way that the injection phase of each injector (2) always takes place when the high-pressure pump (4) is not pumping fuel to the common rail (3). <IMAGE>
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申请公布号 |
EP1598549(A1) |
申请公布日期 |
2005.11.23 |
申请号 |
EP20050104230 |
申请日期 |
2005.05.19 |
申请人 |
MAGNETI MARELLI POWERTRAIN S.P.A. |
发明人 |
AUSIELLO, FRANCESCO;SERRA, GABRIELE |
分类号 |
F02M59/26;F02M59/36;F02M63/02;(IPC1-7):F02M59/36 |
主分类号 |
F02M59/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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