Blade sealing arrangement for continuous combustion, positive displacement, combined cycle, pinned vane rotary compressor and expander engine system
US5489199A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02G2250/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pinned vane type, positive displacement, rotary device includes a tangentially translatable roller arrangement for sealing each of a plurality of rotatable blades that are pivotally attached to an inner hub and extend through blade spreader elements of an outer hub assembly to contact the interior surface of the device. Each of roller elements on either side of a respective blade is allowed to rotate about its own axis, while the unloaded one of the roller elements is allowed to translate tangentially relative to a circular path described by the outer hub assembly. The sealing arrangement accommodates pivoting of the blade about an axis that passes through the blade in the radial direction from the inner hub to the interior surface of the housing, so that the contact surface between each roller element and its associated blade has no gaps across the surface of the blade between outer hub assemblies. The sealing arrangement also includes sealing elements biased against the rollers preventing gas leakage during translation motion of the unloaded roller element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.