Internal combustion engine
US4133322A · kind A · utility
11Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1976 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Jul 19, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an internal combustion engine, an injection hole is provided in the cylinder head to inject narrow streams of air towards the spark gap, particularly during idling and low load running conditions. The injected air is 5 to 30% by weight of the intake fuel-air mixture provided via the intake manifold and creates a swirl or turbulence thereby increasing combustibility. The hole is connected via a sub intake passage to the main air intake passage upstream of the venturi in the carburetor or between the venturi and throttle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.