Rotary piston assembly
US6390794B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Nov 22, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Nov 22, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C3/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary piston assembly including a piston housing with a central axis, and an annular chamber defined about the central axis. A pair of pistons are disposed about 180 degrees apart from one another within the annular chamber and rotate about the central axis a first angular velocity. The assembly also includes an abutment housing including a gap defined in its peripheral wall structure, and structured to rotate about an abutment axis at a second angular velocity. The abutment housing overlaps the piston housing and rotates therethrough to define an interior chamber therebetween, the first and second angular velocities being defined relative to one another so that the gap of the abutment housing rotates through the annular chamber when each of the pistons passes into and out of the interior chamber, thereby allowing the pistons to pass into and out of the interior chamber through the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.