Valve drive mechanism for engine
US6397804B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Aug 10, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2275/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve drive mechanism includes a generally cylindrically shaped tappet assembly (24) comprising a center tappet (41 ) and a side tappet (42). The center tappet (41 ) has a circular-arcuate side walls (41c) formed with vertical side shrouds (41d) at opposite sides of each side wall (41c) which overlap and slide contact with opposite end guide walls (42h) of the side tappet (42), respectively. When the tappet assembly (24) is in an unlocked state so as to transmit rotation of the side cams (25, 27), the vertical side shroud (41d) of the center tappet (41 ) slide on the vertical side walls (42h) of the side tappet 42 so as thereby to guide slide movement of the center tappet (41) relative to the side tappet (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.