Gas flow measuring apparatus
US4381668A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1980 |
| Grant date | May 3, 1983 |
| Priority date | — |
| Expiry date | Aug 15, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An intake barrel connected to an intake pipe of an internal combustion engine is provided therein with a venturi member. Openings are formed in the wall of the intake barrel at the upstream and downstream sides of the venturi member. A bypass passage forming member provided with a groove of a length greater than the distance between said openings is fixed to the outside of the intake barrel. A bypass passage is formed by these openings and the groove. A spacer is interposed between the intake barrel and the bypass passage forming member. The cross-sectional area of the bypass passage can be varied by varying the thickness of the spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.