Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1982-02-11
1987-05-05
Wolfe, Jr., Willis R.
Internal-combustion engines
Charge forming device
Fuel injection system
123446, 123458, 239453, F02M 6304
Patent
active
046623388
ABSTRACT:
A fuel injection nozzle for internal combustion engines which has a valve needle loaded in the closing direction and is radially guided and supported in an axially displaceable manner within a nozzle body. The movement of the valve needle is effected in the opening and closing directions in a selectively variable manner, a spring-loaded supplementary mass which performs a dual function being disposed in the nozzle interior. In the opening direction of the valve needle, the supplementary mass is displaced along with the valve needle, while in the closing direction the two elements are separated. The supplementary mass influences the movement of the valve needle both inertially, as the result of its mass, and by effecting a speed-dependent damping, as the result of the positive displacement of a fluid from damping chambers, the whole being adapted to a constant or variable throttle disposed in the fuel inlet conduit.
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Itoh Katsuoki
Komaroff Iwan
Greigg Edwin E.
Robert & Bosch GmbH
Wolfe, Jr. Willis R.
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