Valve control system including deactivating rocker arm
US7121241B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2006 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Jan 10, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve control system (15) in which there is provided a deactivating rocker arm (51) disposed beneath a conventional, upper rocker arm (27), and disposed within a module housing (17). The deactivating rocker arm includes a latch tab (63) and when the latch tab engages (FIG. 3) a latch member (65), the system operates in a normal, valve activating mode. When the latch member is in an unlatched condition (FIG. 4), the deactivating rocker arm pivots, compressing the valve return spring (41), which thereafter serves as the required lost motion spring, biasing the deactivating rocker arm (51) and lash compensation device (35) back toward their normal position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.