Piston spring return assembly for automatic transmission
AssigneeGoerend Transmissions, Inc.
InventorChase Langreck
Life of this patent
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Abstract
A spring assembly for the clutch of an automatic transmission includes a plurality of springs residing between upper and lower retaining rings which are secured together with a plurality of fasteners. The spring assembly is compressed against the force of the springs when the clutch piston is applied to engage the clutch, and then expanded when the clutch piston is released to disengage the clutch. The fasteners of the spring assembly eliminate radial movement of the rings relative to one another and control the axial movement of either of the upper and lower spring retaining rings.
Claims18
A spring assembly for a clutch of an automatic transmission, comprising:
- a first ring;
- a second ring;
- a plurality of springs sandwiched between the first and second rings;
- the first and second rings each having recesses surrounding opposite ends of the springs so as to contain the springs between the first and second rings;
- threaded fasteners coupling the first and second rings together and allowing the rings to move axially relative to one another;
- and
- the rings being movable between an expanded position when the springs are in a neutral position and a compressed position when the springs are compressed.
An automatic transmission having a clutch and a piston to move the clutch between engaged and disengaged positions, and the transmission further comprising:
- a spring assembly for urging the clutch to the disengaged position;
- the spring assembly having first and second rings and a plurality of springs between the rings;
- the first and second rings each having recesses;
- the springs each having opposite ends extending into the recesses to retain the springs between the rings;
- and
- fasteners slidably extending through one of the rings and threadably extending into the other of the rings so as to connect the rings and allow axial movement of the rings relative to one another as the springs are compressed and decompressed.
Dependencies are inferred from the claim text.