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US 4,387,688 AGranted
Fuel injection pump for internal combustion engines
AssigneeRobert Bosch GmbH
InventorFranz Eheim
Life of this patent
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Abstract
A fuel injection pump is proposed wherein the idling rpm is influenced with the injection time adjustment via a linkage. The increased starting quantity can also be controlled along with this via an additional apparatus. The adjustment can be made in particular in accordance with engine temperature via a thermostatic servomotor.
Claims11
A fuel injection pump for internal combustion engines comprising
- (A) a housing, a cam drive in said housing which effects the supply movement of at least one pump piston, said cam drive having a housed rest portion and a revolvable portion, said rest portion being adjustable relative to said revolvable portion to adjust the onset of injection via means responsive at least in accordance with rpm, said means having a stop, and an intervention lever means disposed exteriorly of said housing adapted to cooperate with said stop;
- (B) a fuel control member, an rpm governor operating to control said fuel control member which determines injection quantity, an arbitrarily actuatable adjusting lever which varies the rpm of said governor, with an outset position of said governor being determined by means of an adjustable idling stop;
- and
- (C) a coupling means between said intervention lever and said adjusting lever;
- characterized in that said coupling means includes a displaceable rod supported exteriorly of said housing and a spring surrounding said rod which reacts relative to said rod to force said rod in constant contact with said intervention lever, said spring cooperating with an end of said rod remote from said intervention lever to act as an idling stop for said adjusting lever.
2 more elements
Dependencies are inferred from the claim text.