Multi-fit encapsulated oscillation dampener for automotive automatic transmissions
AssigneeSuperior Transmission Parts, Inc.
InventorDean Mason
Life of this patent
Estimating the term…
Abstract
A dampener assembly includes a capsule housing an internal piston and spring, the spring positioned within and between both the piston and capsule. The capsule is generally cylindrical with an opening at a first end to accept the piston into an inner cylindrical channel of the capsule. A vent is positioned along a second end of the capsule to release pressure as the piston moves back and forth along the inner channel in response to fluid pressure in a transmission and counteracting force from the spring. The capsule is installed in either a reamed or unreamed bore and acts as a new bore. The dampener assembly is sealed to the bore by one or more elastomeric rings.
Claims13
A dampener assembly configured to be inserted into a dampener bore, comprising:
- a sleeve, a piston, and a spring, the spring positioned within and between both the piston and the sleeve, the sleeve including a cylindrical body having a first opening at a first end and a second opening along a second end, the second end and the second opening being oppositely oriented along a longitudinal length of the sleeve relative to the first end and the first opening,
- wherein an inner chamber extends within the sleeve between the first opening and the second opening, and the inner chamber includes a first portion having a diameter to receive the piston, a second portion having a diameter to receive the spring and being smaller than the diameter of the first portion, and a third portion having a diameter smaller than the diameter of the first portion and the diameter of the second portion and being fluidly connected to the second opening,
- wherein the spring is secured at one end within the piston against an inner wall of a cavity of the piston and at an opposite end against an end wall of the second portion of the inner chamber of the sleeve.
A dampener assembly configured to be inserted into a dampener bore, comprising:
- a sleeve, a piston, and a spring, the spring positioned within and between both the piston and the sleeve, the sleeve including a cylindrical body having an opening at a first end and a second opening along a cylindrical member longitudinally extending from a second end of the sleeve, both the second end and the cylindrical member being oppositely oriented to the first end along a longitudinal length of the sleeve, and
- wherein an inner chamber extends within the sleeve and along the cylindrical member between the first opening and the second opening, and the inner chamber includes a first portion having a diameter to receive the piston, a second portion having a diameter to receive the spring and being smaller than the diameter of the first portion, and a third portion having a diameter smaller than the diameter of the first portion or the diameter of the second portion and being fluidly connected to the second opening,
- wherein the spring is secured at one end within the piston against an inner wall of a cavity of the piston and at an opposite end against an end wall of the second portion of the inner chamber of the sleeve.
Dependencies are inferred from the claim text.