Solenoid valve in an automatic transmission
US6019203A · kind A · utility
7Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1998 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Aug 14, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission and control has a torque converter and clutch which is controlled between torque converter operation and torque converter clutch operation. The switch between these operations is controlled by a solenoid valve and a TCC apply valve. The solenoid valve is a normally open valve and includes a plunger that is spring loaded against a poppet valve to control the static pressure in the torque converter, during non-operating conditions of a vehicle, at or above a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.