发明名称 |
An accumulation volume fuel injection system for an internal combustion engine |
摘要 |
The injection system (1) comprises a pump (7) designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail (6), for supplying a plurality of injectors (5). The pump (7) comprises at least one pumping element (18) actuated with reciprocating motion with a compression stroke (Pi-Ps) at a sinusoidal speed (24), in synchronism with each step of fuel injection. The injection system (1) comprises at least one by-pass solenoid valve (14), which is controlled by a chopper control unit (16, 28) for modulating the delivery of the pumping element (18) by varying both the instant of start (To) and the instant of end (T 1 ) of delivery during the compression stroke (Pi-Ps), in such a way that the delivery is synchronous with the injection phase.
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申请公布号 |
EP1657430(A1) |
申请公布日期 |
2006.05.17 |
申请号 |
EP20040425839 |
申请日期 |
2004.11.12 |
申请人 |
C.R.F. SOCIETA CONSORTILE PER AZIONI |
发明人 |
RICCO, MARIO;DE MATTHAEIS, SISTO LUIGI;RICCO, RAFFAELE;LEPORE, DOMENICO |
分类号 |
F02M59/36;F02D41/38;F02M59/10;F02M59/46;F02M63/02 |
主分类号 |
F02M59/36 |
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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