After burning preventive system for an internal combustion engine
US4196709A · kind A · utility
7Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1977 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Dec 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7749
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The accumulator chamber communicates with the atmosphere through a passage which is formed therein with a restriction for restricting the cross sectional area of the passage or which is provided therein with a pressure control valve for opening the passage in response to a difference between the atmospheric pressure and the vacuum in the accumulator chamber which difference is above a predetermined value to maintain the vacuum differential between the accumulator and vacuum chambers above a predetermined value when the engine suction vacuum is above a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.