Abstract: Various devices and methods are provided for a multiple pressure ratio valve assembly that can be used in a plurality of systems requiring different operating pressures. In one embodiment, a multi-pressure ratio valve is provided, the valve having a fluid bypass portion and being configurable into a plurality of pressure ratio configurations by selectively blocking a portion of the fluid bypass such that the pressure ratio of the valve assembly may be varied. Embodiments of the invention may also include a valve sleeve configured for use in a plurality of transmissions, the multi-pressure ratio valve being configured to be slidably disposed within the sleeve.

Abstract: Various devices and methods are provided for a multiple pressure ratio valve assembly that can be used in a plurality of systems requiring different operating pressures. In one embodiment, a multi-pressure ratio valve is provided, the valve having a fluid bypass portion and being configurable into a plurality of pressure ratio configurations by selectively blocking a portion of the fluid bypass such that the pressure ratio of the valve assembly may be varied. Embodiments of the invention may also include a valve sleeve configured for use in a plurality of transmissions, the multi-pressure ratio valve being configured to be slidably disposed within the sleeve.

Abstract: A universal jig/work holding fixture for precision manual reaming of valve bores within a transmission valve body or other work piece. The universal jig/work holding fixture includes a tool holder (i.e. jig) having universal swiveling movement in all axes, which allows precise axial alignment of a reaming tool to the longitudinal axis of a valve bore. The universal jig is contained within a work holding fixture whereon the valve body or other work piece is clamped during the reaming operation. The work holding fixture is constructed to accommodate vertical and lateral adjustment of the tool holder relative to the work holding fixture to permit precise alignment of the reaming tool and provides mechanisms to lock the tool holder and work piece in a desired position. In an alternative embodiment the jig/work holding fixture is configured to be attached directly to a transmission case to repair servo pin bores located therein.

Abstract: A universal jig/work holding fixture for precision manual reaming of valve bores within a transmission valve body, or other work piece is disclosed. The universal jig/work holding fixture includes a tool holder (i.e. jig) having universal swiveling movement in all axes, which allows precise axial alignment of a reaming tool to the longitudinal axis of a valve bore. The universal jig is contained within a work holding fixture whereon the valve body or other work piece is clamped during the reaming operation. The work holding fixture is constructed to accommodate vertical and lateral adjustment of the tool holder relative to the work holding fixture to permit precise alignment of the reaming tool and provides mechanisms to lock the tool holder and work piece in a desired position. The universal jig/work holding fixture allows a service technician in a transmission shop environment to achieve a precision repair using only manual tools.