Donald P Mcneil

US Patent:

20160010760, Jan 14, 2016

Filed:

Jul 14, 2014

Appl. No.:

14/330396

Inventors:

- Cleveland OH, US
Nick J. Difazzio - Bloomfield NJ, US
Matthew R. Kearsley - Morris Plains NJ, US
Leonard E. Prais - Pompton Lakes NJ, US
Scott J. Snyder - Morristown NJ, US
Thomas Theilmeier - , US
Yong Wang - Hillsdale NJ, US
Donald S. McNeil - Brookline NH, US

International Classification:

F16K 31/06

Abstract:

A solenoid valve assembly includes an armature having a longitudinal axis and an ovular cross-section, the armature being moveable along the longitudinal axis from a first position to a second position, and a bobbin including a solenoid coil configured to electromagnetically move the armature when energized. The bobbin defines a recess also having an ovular cross section for receiving the armature and restricting lateral movement of the armature, thereby providing a linear actuation path for the armature along the longitudinal axis. A flux coupler and a flux bracket form a magnetic circuit with the bobbin to electromagnetically move the armature. The flux bracket has a pole piece with a commensurate ovular cross-section that limits the movement of the armature along the longitudinal axis, thereby determining a stroke length of the armature. During manufacture, the flux bracket, and therefore the pole piece, are moved relative to the flux coupler to set the stroke length.