Patent · US Expired

Linear solenoid valve

US7325564B2 · kind B2 · utility

17Cited by
43References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 17, 2005
Grant dateFeb 5, 2008
Priority date
Expiry dateMar 13, 2026

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/8671
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A linear solenoid valve includes a solenoid having a coil wound around a coil bobbin, a fixed core, and a movable core for being attracted to the fixed core when the coil is energized, and a valve mechanism having a valve element for selectively bringing an inlet port and an outlet port into and out of fluid communication with each other responsive to a displacement of the movable core. The movable core has a nonmagnetic layer formed on an outer surface thereof and having a predetermined thickness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.