Patent ID: 6647960
Filing Date: 2003-11-18
Classification: F02D,F16K

Abstract:
A torsion spring assembly for moving a throttle to a closed position, comprising:a helically wound spring having a first coil and a last coil, said first and last coils each having an end portion; an insert positioned inside and supporting the spring, one end of the insert having at least two slots and at least one tab, and another end of the insert having an aperture into which the end portion of the first coil fits; a housing having two sides and slots matching the tabs of the insert; a load element, assembled with the insert, the load having an aperture for receiving the end portion of the last coil of the spring; and a cap having tabs matching the slots of the insert, wherein the assembly is assembled with a winding tool to torsion the spring and to assemble the spring and the insert and the load element on a first side of the housing, and the cap on the other side.