Flywheel and mounting method for same
US7134361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2002 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Dec 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2132
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In order to suppress axial vibration in a crank system, prevent knocking sound, and reduce vibration noise, a flywheel (1) which is mounted onto the crankshaft of an engine (E) is made into a spoked form having an uneven number of spokes (5). This prevents the symmetrical bending that occurs with an even number of spokes, and divides the vibration mode in the peripheral direction. It is preferable that the number of spokes be seven. The flywheel (1) is mounted such that, when the pistons of predetermined cylinders #5 and #6 are at top dead center at the start of the expansion stroke, one of the spokes (5a) is positioned on the opposing side to these predetermined cylinders, which border the center of the crank (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.