发明名称 |
Electrically controlled fuel injection pump |
摘要 |
An electrically controlled fuel injection pump for internal combustion engines, in particular for direct fuel injection in engines having externally supplied ignition contains a plurality of pump pistons driven by a single common cam. The pumping quantity of fuel is delivered by pumping pistons is controlled via a rotary slide valve to the injection nozzles at the injection sites of the engine, wherein the quantity control is effected by an electrically controlled valve. An axial conduit of the rotary slide which discharges into control bores or control grooves distributed over the circumference of the rotary slide and cooperates with the pump work chamber and the pressure lines to the injection sites and is adjoined by at least one further control bore or control groove which communicates with a pressure reservoir. By this means, a preinjection, separate from a main injection, is made possible at the top dead center charge change.
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申请公布号 |
US4951626(A) |
申请公布日期 |
1990.08.28 |
申请号 |
US19890423062 |
申请日期 |
1989.10.18 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
HAAG, GOTTLOB;LINDER, ERNST;REMBOLD, HELMUT |
分类号 |
F02M41/06;F02M45/06;F02M59/36 |
主分类号 |
F02M41/06 |
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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