Lubrication structure of planetary gear set utilizing inner pipe
US11879540B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 20, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/364
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lubrication structure of a planetary gear set includes a hollow shaft on which the planetary gear set is disposed and forming an oil passage in an axial direction thereof and a plurality of oil holes in a radial direction thereof to supply a lubrication oil to the planetary gear set, and an internal pipe provided within the oil passage of the hollow shaft, wherein a gap chamber is formed between the internal pipe and the hollow shaft with a preset gap, where a plurality of oil supply holes are formed through the internal pipe in the radial direction to fluidically communicate the gap chamber and an internal space of the internal pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.