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Solenoid-actuated valves in a four-speed automatic transmission which are direct-acting and have a non-close clearance design to prevent dirt or other contaminants from interfering with the operation of said valves. The solenoid-actuated valves also include armature having an offset portion extendin

Solenoid-actuated valves in a four-speed automatic transmission which are direct-acting and have a non-close clearance design to prevent dirt or other contaminants from interfering with the operation of said valves. The solenoid-actuated valves also include armature having an offset portion extending toward electromagnetic means to be offset toward the center inside the electromagnetic means for efficient magnetic flow.

대표청구항 ▼

A valve assembly for controlling fluid flow between a fluid supply source and fluid actuating device in a vehicle transmission, said assembly comprising: means forming a housing having a supply port for connection with a fluid supply source, an element port for connection with the fluid actuating de

A valve assembly for controlling fluid flow between a fluid supply source and fluid actuating device in a vehicle transmission, said assembly comprising: means forming a housing having a supply port for connection with a fluid supply source, an element port for connection with the fluid actuating device, and a passageway communicating with said supply port and said element port; a ball disposed within said passageway and moveable between positions which cause said element port to be either connected to said supply port or a vent port; means forming a plunger having a longitudinal axis aligned with the center of said ball to move said ball; electromagnetic means for producing a magnetic field when electrically energized; and armature means moveable in response to the presence and absence of a magnetic field for actuating said plunger means, said armature means comprising an armature member axially spaced from the electromagnetic means and extending outwardly in a plane perpendicular to an axial length of the electromagnetic means and having an offset portion extending toward and at least partially disposed inside the electromagnetic means to cause a working air gap between the armature means and electromagnetic means to be disposed inside and offset toward the center of the electromagnetic means for more efficient magnetic flow, wherein said armature member has one end spaced transversely from said offset portion for actuating said plunger means to move said ball.