Two wheel/four wheel drive change over apparatus for four-wheel drive vehicles
US4858716A · kind A · utility
4Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1987 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K23/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A two wheel drive/four wheel drive change over apparatus for four-wheel drive vehicles includes an actuator having a vacuum chamber. A tank storing an engine vacuum through a check valve is integrally formed in the vacuum chamber, whereby the engine vacuum stored in the tank can be used for operating the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.