Balancer driven gear of engine
US7334553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2004 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Mar 16, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2183
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A balancer driven gear of an engine, for the transfer of rotation of the crankshaft to a balancer shaft, is made up of a gear member, a bush member and elastic members and interposed therebetween. The bush member has a boss portion fixed to the balancer shaft, and a plurality of outward dowels projecting radially outward from the outer periphery of the boss portion. The gear member is disposed coaxially with the bush member. The gear member has an annular portion with gear teeth on the outer periphery thereof and a plurality of inward dowels projecting radially inward from the inner periphery of the annular portion. Elastic members are disposed between the outward dowels on the bush member 20 and the inward dowels on the gear member. The shapes and/or dimensions of the dowels positioned on opposite sides with respect to the axis of the balancer driven gear are made asymmetric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.