Long stroke linear solenoid
AssigneeGM Global Technology Operations LLC
InventorsAlireza Fatemi, Thomas W Nehl, Chandra S Namuduri
Life of this patent
Estimating the term…
Abstract
A solenoid assembly is provided that includes male and female plungers and an electromagnetic coil configured to be energized to create a magnetic flux. Each plunger has a plunger face, where the female plunger face is configured to correspond with the male plunger face. The male plunger has a plurality of angled plunger steps that define the male plunger face, each angled plunger step including a corner having an angle in the range of 95 degrees to 115 degrees. The female plunger face has a similar, corresponding angled face. The solenoid assembly is suitable for use as a long stroke linear solenoid.
Claims20
A solenoid assembly comprising:
- an electromagnetic coil configured to be energized to create a magnetic flux;
- a male plunger having a male plunger face, the male plunger having a plurality of angled plunger steps that define the male plunger face, each angled plunger step including a corner having an angle in the range of 95 degrees to 115 degrees;
- a female plunger having a female plunger face corresponding to the male plunger face,
- wherein the electromagnetic coil is configured to be energized to cause relative movement between the male plunger and the female plunger.
A clutch assembly of an automotive transmission, the clutch assembly comprising:
- a clutch being selectively engageable to interconnect a pair of engaging members with an independent member;
- a first armature connected to a first engaging member of the pair of engaging members;
- a second armature connected to a second engaging member of the pair of engaging members;
- and
- a solenoid assembly comprising:
- a hollow cylindrical yoke defining a yoke inner cavity;
- an electromagnetic coil configured to be energized to create a magnetic flux, the electromagnetic coil being disposed in the yoke inner cavity;
- a male plunger disposed adjacent to the electromagnetic coil, the male plunger having a male plunger face, the male plunger having a plurality of angled plunger steps that define the male plunger face, each angled plunger step including a corner having an angle in the range of 95 degrees to 115 degrees, the male plunger having a distal end extending from the yoke and connected to the first armature;
- and
- a female plunger disposed adjacent to the electromagnetic coil, the female plunger having a female plunger face corresponding to the male plunger face, the female plunger having a distal end extending from the yoke and connected to the second armature,
- wherein the electromagnetic coil is configured to be energized to cause relative movement between the male plunger and the female plunger.
Dependencies are inferred from the claim text.