发明名称 |
Fuel injection system comprising a high-pressure variable-delivery pump |
摘要 |
The injection system has a high-pressure pump (7) having at least one pumping element (18) operated reciprocatingly to perform an intake stroke and a delivery stroke. Each pumping element (18) has a corresponding intake valve (25) communicating with an intake conduit (10) supplied by a low-pressure pump (9). The intake conduit (10) is fitted with an on-off solenoid valve (27) controlled by a control unit (16) asynchronously with respect to the intake of each pumping element (18). And the control unit (16) may control the on-off solenoid valve (27) by means of frequency-modulated and/or duty-cycle-modulated control signals (A, C).
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申请公布号 |
US7784447(B2) |
申请公布日期 |
2010.08.31 |
申请号 |
US20050108201 |
申请日期 |
2005.04.18 |
申请人 |
C.R.F. SOCIETA CONSORTILE PER AZIONI |
发明人 |
RICCO MARIO;DE MATTHAEIS SISTO LUIGI;DE MICHELE ONOFRIO;SATRIANO ANNUNZIATA ANNA |
分类号 |
F02M37/00 |
主分类号 |
F02M37/00 |
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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