Automatic Transmission Clutch Layout for Axial Downsizing

The patent applies dimensionality change by repositioning the hydraulic chamber from a serial axial arrangement to a radial overlap configuration with the biasing member. Specifically, the hydraulic chamber is positioned at a different radial position than the biasing member, causing them to overlap in the axial direction rather than extend sequentially. This spatial reconfiguration reduces the overall axial dimension of the brake assembly while maintaining the functional independence and manufacturing simplicity of each component.

The patent implements nesting by positioning the hydraulic chamber within the radial envelope of the biasing member's axial projection. The hydraulic chamber is arranged concentrically or eccentrically within the same radial space occupied by the biasing member, allowing the two components to occupy overlapping axial spaces without interfering with each other's function. This nested arrangement maximizes space utilization and achieves compact axial dimension while maintaining clear functional separation.

The patent applies local quality by designing the release chamber with a smaller diameter specifically at the region where radial overlap with the biasing member occurs, while maintaining adequate diameter in other regions to ensure proper hydraulic pressure distribution. The hydraulic chamber's cross-sectional area is varied locally to accommodate the spatial constraints imposed by the biasing member while preserving sufficient volume for effective brake release operation. This localized dimensional optimization reduces overall axial dimension without compromising hydraulic functionality.