Motion modifiers for fuel injection systems

摘要

The present technology relates generally to amplification for fuel injectors. In some embodiments, an injector for introducing gaseous or liquid fuel into a combustion chamber includes an injector body having a base portion configured to receive fuel into the body and a valve coupled to the body. The valve can be movable to an open position to introduce fuel into the combustion chamber. The injector further includes a valve operator assembly. The valve operator assembly can include a valve actuator coupled to the valve and movable between a first position and a second position upon receipt of an initial motion. The valve operator assembly can also include an amplifier configured to receive the initial motion from the valve actuator, amplify the initial motion, and transfer the amplified motion to the valve.

主权项

1. An injector for introducing fuel into a combustion chamber, the injector comprising:
an injector body comprising a base portion configured to receive fuel into the body and a valve coupled to the body, wherein the valve is movable to an open position to introduce fuel into the combustion chamber; a valve operator assembly, the valve operator assembly comprising a driver, a movable component, a displacement amplifier having an elastomeric component coupled to the valve, and a piston having a first end in contact with the movable component and second end in contact with the elastomeric component, wherein the driver applies a force upon the movable component to axially move the piston by a first displacement and wherein the elastomeric component is configured to transfer motion of the piston by the first displacement to the valve and axially move the valve by a second displacement greater than the first displacement.