×

Vented armature/valve assembly and fuel injector utilizing same

  • US 5,709,342 A
  • Filed: 11/09/1995
  • Issued: 01/20/1998
  • Est. Priority Date: 11/09/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. A vented solenoid armature/valve member assembly comprising:

  • a body that includes a solenoid housing attached to a valve block;

    an armature enclosed in said body and having an upper surface, a lower surface and a screw hole extending through said upper surface and said lower surface;

    a valve member enclosed in said body and having an axis, a first end, a second end, an outer surface extending between said first end and said second end, a threaded hole extending through said first end along said axis, an opening through said second end and a hollow interior that opens to said threaded hole and said opening, and said valve member being moveable between a first position and a second position;

    a vented screw having a screw axis, a head and a rod portion aligned with said screw axis attached to said head and a vent hole extending through said rod portion and said head along said screw axis;

    said rod portion having threads that fit said threaded hole of said valve member; and

    said vented screw extending through said screw hole of said armature and being threaded into said threaded hole; and

    said body, said armature and said valve member being shaped and sized such that an amount of fluid surrounding said armature must be displaced toward said hollow interior through said vent hole when said valve member moves from said first position to said second position.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×