Pendulum crank cycloid insert for pendulum crankshaft having integral carrier
US9976625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2014 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2184
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pendulum crankshaft for an internal combustion engine includes a pendulum crankshaft having pendulum crank cycloid inserts. The inserts may be formed from high graded hardened steel while the crankshaft may be formed from conventional iron. The pendulum crankshaft includes a crankshaft having pendulum-holding ears. A cycloid insert-receiving aperture is formed in each of said ears for receiving a cycloid insert. Each of the cycloid inserts has a cycloid path formed therethrough. The pendulum is movably attached to the ears by a rolling pin fitted through the cycloid paths of the ears and captured between the cycloid paths formed in each half of the pendulum. Each half of the pendulum includes recessed areas on which the cycloid paths are formed. A pin is provided between each cycloid insert and the ear into which it is inserted to restrict rotation of the cycloid insert with respect to the ear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.