Transmission lubricant cooling system
US7036634B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Nov 8, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0037
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle transmission lubrication communication system including a pump, a torque converter, an oil cooler, a shifting control assembly, a sump, a main shaft, a counter shaft, and a secondary shaft. The pump withdraws lubricating oil from the sump and pumps the lubricating oil throughout the lubrication system. The pump directs a first flow to the torque converter, a second flow to the shifting control assembly, and a third flow to the main shaft. Oil from the torque converter flows through the oil cooler and, downstream the oil cooler, separates into a first portion of cooled oil that is directed to the secondary and counter shafts and a second portion of the cooled oil that is directed to the sump. Increased flow through the torque converter and oil cooler, as well as directing cooled oil to the secondary and counter shafts, reduces the oil temperature during normal and lockup modes of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.