Damping device of an air flow rate meter disposed in the air intake tube of an internal combustion engine
US4554825A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1984 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | Mar 1, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A damping device of an air flow rate meter disposed in the intake tube of an internal combustion engine, which air flow rate meter serves to damp the effect of intake-tube recoiling upon the air flow rate meter. The damping device includes a guide bushing, which is firmly connected with a bearing shaft of the air flow rate meter and has an outer Thread-like groove. A blocking body provided with a matching inner thread-like groove is rotatable on the guide bushing and is supported such that it is axially displaceable counter to a compression spring in the direction toward a detent body attached to the housing. The detent body and the blocking body have latch protrusions oriented toward one another, which upon an axial movement of the blocking body toward the detent body are capable of meshing with one another and stopping the movement of the air flow rate meter in the event of intake-tube recoiling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.