Turbine bypass working fluid admission
US5311749A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1992 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Apr 3, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C3/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cycle machine (10) has a first stage turbine (60) mounted to a central portion of a common shaft (12), a compressor (50) mounted to the central portion of the shaft (12), a second stage turbine (30) mounted to a first end of the shaft (12), and a fan (40) mounted to a second end of the shaft (12), all for rotation therewith about a longitudinal axis (14). The first and second stage turbines (60, 30) are operative to extract energy from a flow of compressed air for driving the shaft (12), and the fan (40) and the compressor (50), in rotation about the axis (14). A bypass air discharge nozzle (20) is disposed coaxially with the turbine shroud (32) of the outboard turbine (30) at the outlet (134) thereof or downstream thereof at the discharge end (38) of the turbine diffuser (36) so as to receive in a central region the turbine exhaust (3 ) discharging from the turbine (30) and to define an annular flow inlet (28) through which a flow of bypass air (5) is directed into an outer circumferential region thereof to flow substantially parallel to and about the cooled expanded conditioning air exhaust flow (3) discharged from the turbine (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.