Engine balance masses and drives
US8616172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jun 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2184
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present application relates to a drive and balance mass. In one example, an engine includes, a camshaft, a balance shaft disposed within an interior of the camshaft, and a first gear, intermediate the balance shaft and the camshaft and driving the balance shaft to rotate about a first axis substantially parallel to a crankshaft of the engine in a direction opposite of the crankshaft. In another example, a balance mass and drive for an engine includes, a planetary gear set including a sun gear, a ring gear and a plurality of pinions mounted on a carrier, an input coupled to an input gear of the planetary gear set, a balance mass coupled to an output gear of the planetary gear set, the output gear configured to drive the balance mass to rotate about a first axis substantially parallel to the crankshaft in a direction opposite of the crankshaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.