Oil supply system for an automatic transmission
US11828357B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Nov 5, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An oil supply system of an automatic transmission includes a reservoir (1) for accommodating and storing a liquid operating medium (6), a volume compensation tank (102), and a valve device (20) for establishing or interrupting a hydraulic connection (3) between the volume compensation tank (102) and the reservoir (1). The volume compensation tank (102), in the installed position of the automatic transmission, is arranged above the reservoir (1). The hydraulic connection (3) between the volume compensation tank (102) and the reservoir (1) is automatically establishable or interruptable by the valve device (20) as a function of a temperature. The valve device (20) is configured such that the temperature at which the valve device (20) is in the open condition is lower than the temperature at which the valve device (20) is in the closed condition and, thereby, the hydraulic connection (3) is at least partially interrupted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.