Push rod for use in a valve actuation device of an internal combustion engine
US6691659B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/146
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A push rod (1), more specifically for use in a valve actuation device of an internal combustion engine, which is substantially hollow and is provided with a portion (5) of a maximum cross section dimension arranged preferably in the middle between the ends (1a, 1b) of the push rod (1). In order to provide, in the easiest possible way, a light weight push rod (1) with high buckling resistance, the push rod (1) consists of a first and of a second, substantially hollow rod piece (2, 3), the rod pieces (2, 3) having a maximum cross section dimension in the region of one open front face (2b, 3b) thereof and being rigidly joined together at their open front faces (2b, 3b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.