Bearing guide device of a combustion piston for a variable compression ratio engine
US11078835B2 · kind B2 · utility
0Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | May 16, 2017 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D15/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A bearing guide device of a combustion piston for a variable compression ratio engine. The movement of the combustion piston from a top dead center to a bottom dead center drives the movement of a synchronized roller made up of a cylindrical body and a pinion from a first position to a second position relative to first and second racks. According to the disclosure, the first and/or second racks have a different circular pitch than the pinion so that the flanks of the teeth of the pinion engage with the flanks of the teeth of the first and second racks only when the pinion is in the first or second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.