Abstract: A spring induction heater assembly is shown and described. The device has a quench tank incorporated into the design. A motor and drive mechanism provide rotation of a spring about one axis from a first position used for loading, to a second position for heat treatment with an induction coil and a third position where the spring is released dropped into a quench tank. Another rotational system is operational to rotate the spring on a spindle in the second or horizontal position while the spring is located between at least two legs of an induction coil. The induction coil provides even heating to the spring coils thereby providing desired changes to the material properties. The quench tank can have an automated system to remove the springs from the quench tank.

Abstract: A fuel injector for an internal combustion engine includes a main body including a timing bore, a timing plunger disposed in the timing bore, an electronically-operated solenoid valve assembled to the main body, a nozzle having a needle bore and an injection needle disposed in the needle bore which needle is operable under certain conditions to lift so as to initiate fuel injection. Disposed between the main body and the nozzle member is a one-piece adapter which is designed to include an axially-extending metering bore and a needle spring cavity. A metering plunger is disposed within the metering bore and a biasing spring is disposed within the needle spring cavity. At the base of the needle spring cavity is a button which serves as a direct abutment interface between the top of the needle and the bottom of tile biasing spring.