Gear shift shock reducing apparatus for hydraulic control system of automatic transmission
US4445401A · kind A · utility
18Cited by
13References
8Claims
0Family size
Inventor
Key dates
| Filing date | Oct 10, 1980 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | Oct 10, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gear shift shock reducing apparatus for a hydraulic control system of an automotive automatic transmission comprising a pressure reducing valve operatively disposed between an actuating means of a frictional unit and a manual selector valve to produce a pressure which is not higher than a line pressure. The pressure reducing valve is responsive to a kickdown condition and is rendered inoperative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.