Drop-in signal accumulator piston kit and method for replacing an original equipment signal accumulator piston
AssigneeSonnax Transmission Company
InventorMaura J. Stafford
Life of this patent
Estimating the term…
Abstract
A drop-in signal accumulator piston assembly to replace an original equipment (OE) signal accumulator piston in a vehicle transmission hydraulic circuit, the OE signal accumulator piston positioned in a bore in a valve body having an open end and a fluid port. The drop-in signal accumulator piston assembly has a sleeve having open first and second ends. The sleeve is configured to be positioned within the bore of the valve body. A piston is positioned in the sleeve. A spring biases the piston towards the fluid port. A plug is positioned to removably retain the sleeve, the piston, and the spring within the bore and to prevent the sleeve from moving axially within the bore.
Claims20
A drop-in signal accumulator piston assembly to replace an original equipment (OE) signal accumulator piston in a vehicle transmission hydraulic circuit, the OE signal accumulator piston positioned in a bore in a valve body having an open end and a fluid port, the drop-in signal accumulator piston assembly comprising:
- a sleeve having open first and second ends, wherein the sleeve is configured to be positioned within the bore of the valve body;
- a piston positioned in the sleeve;
- a spring that biases the piston towards the fluid port;
- and
- a plug positioned to removably retain the sleeve, the piston, and the spring within the bore and to prevent the sleeve from moving axially within the bore.
A method for replacing an original equipment (OE) signal accumulator piston after removing from a bore in a valve body in a vehicle transmission hydraulic circuit, the OE signal accumulator piston having a first diameter and the valve body having an open end and a fluid port, the method comprising:
- installing a sleeve in the bore;
- positioning a piston in the sleeve, the piston having a second diameter that is smaller than the first diameter of the OE signal accumulator piston;
- positioning a spring in the bore so as to bias the piston toward the fluid port;
- and
- at least partially enclosing the bore so as to removably retain the sleeve, the piston and the spring therein and to prevent the sleeve from moving axially within the bore.
A method for replacing an original equipment (OE) signal accumulator piston after removing from a bore in a valve body in a vehicle transmission hydraulic circuit, the OE signal accumulator piston having a first diameter and the valve body having an open end and a fluid port, the method comprising:
- installing a sleeve in the bore;
- positioning a piston in the sleeve, the piston having a second diameter that is smaller than the first diameter of the OE signal accumulator piston;
- positioning a spring in the bore so as to bias the piston toward the fluid port;
- and
- at least partially enclosing the bore to prevent the sleeve, the piston, and the spring from exiting the bore and to prevent the sleeve from moving axially within the bore.
Dependencies are inferred from the claim text.