PDM transmission with articulated torque transfer
US12292089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | May 24, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D3/221
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball-CV style transmission suitable for use in a Positive Displacement Motor (PDM). A shaft provides shaft wings received into housing receptacles on a housing. A Unitary Torque Transfer Element (UTTE) is interposed between each shaft wing and housing within each housing receptacle, with a spherical surface on the UTTE received into a recess preferably on the housing. The UTTEs float within their corresponding housing receptacles so as to maintain torque transfer contact between all thrust surfaces during articulated rotation of the shaft with respect to the housing. The UTTEs preferably float generally radially towards the shaft centerline as angular deflection increases during articulated rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.