Fuel injection pump
First Claim
1. A fuel injection pump for internal combustion engines comprising a supply pump arranged to generate an rpm-dependent fuel pressure, an adjusting lever arranged to preselect the rpm and an electrically actuatable valve positioned relative to a fuel line bore that communicates with a pump work chamber, at least one switch actuatable with the adjusting lever disposed in an electric line leading to said electrically actuatable valve, said electrically actuatable valve being controllable in accordance with the supply pump pressure whereby at an idling position of the adjusting lever and at an actual supply pump pressure which is larger than the supply pump pressure at the idling speed of the injection pump the injection of fuel is interrupted by closing said fuel line bore by means of said electrically actuatable valve.
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Accused Products
Abstract
A fuel injection pump is proposed which can be shut off by a magnetic valve if there is a danger of engine "cranking". The magnetic valve is triggered via a switch system in which one switch is actuatable with the adjusting lever of the injection pump, wherein the magnetic valve is furthermore controllable by the supply pump pressure.
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Citations
9 Claims
- 1. A fuel injection pump for internal combustion engines comprising a supply pump arranged to generate an rpm-dependent fuel pressure, an adjusting lever arranged to preselect the rpm and an electrically actuatable valve positioned relative to a fuel line bore that communicates with a pump work chamber, at least one switch actuatable with the adjusting lever disposed in an electric line leading to said electrically actuatable valve, said electrically actuatable valve being controllable in accordance with the supply pump pressure whereby at an idling position of the adjusting lever and at an actual supply pump pressure which is larger than the supply pump pressure at the idling speed of the injection pump the injection of fuel is interrupted by closing said fuel line bore by means of said electrically actuatable valve.
Specification