Electromagnetic valve actuating apparatus for internal combustion engine
US6247431A · kind A · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2000 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jan 24, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L9/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electromagnetic valve actuating apparatus includes an armature moved by a solenoid, and an armature shaft joined with the armature, for transmitting motion from the armature to a valve. The armature is formed with a tapered joint hole, and the armature shaft has a tapered end portion which is fit in the tapered joint hole so that the mating joint surfaces are in the form of a conical surface. The armature is made of a ferromagnetic material whereas the armature shaft is made of a material which is non-magnetic and lower in specific gravity than the material of the armature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.