Slotted cylindrical tube rotary valve assembly
US7140342B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 4, 2006 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Mar 4, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/0537
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This invention is a slotted cylindrical rotary valve assembly for an internal combustion engine, comprising of two sets of gear driven slotted cylindrical tubes in a cradle apparatus. Each set has two tubes located co-axially and rotates co-axially, and each tube is slotted to allow for improved transport of a fuel/air mixture and exhaust. In one embodiment, an intake set of tubes transport fuel/air through apertures on the tubes. The exhaust set of tubes transport exhaust through apertures (slots) on the tubes. The rotation of the tubes brings the apertures in timely alignment to allow fuel/air injection and exhaust in synchronization with the cyclical operation of the pistons in the combustion chambers. Effective sealing in one embodiment is achieved by using a modified piston with an extension wall extending longitudinally from the top of the piston to seal intake and exhaust orifices at the top of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.