System and method for a clutch balance piston pressure regulation system
US11408503B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2020 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | May 29, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0253
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system and method for an automotive transmission includes one or more restrictor devices that are installed within a valve body of the automotive transmission to improve performance by establishing a flow limit along the compensator circuit. The complex fluid circuits of certain automotive transmissions having eight to ten speeds allow line pressure supply to bleed out during certain critical functions, such as low rotations per minute hot engagements, which can severely damage the transmission. By limiting flow, the line pressure supply can be preserved to prevent the compensator circuit from bleeding out in these critical functions. The instant invention limits flow by replacing the standard compensator valve with a compensator valve that has a larger spool diameter. Flow is further reduce by another restriction device placed along the compensator circuit between the compensator valve and the clutch drums.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.