초록 ▼

A novel pressure-exchange compressor-expander is disclosed whereby a high energy primary fluid compresses a lower energy secondary fluid through direct fluid-fluid momentum exchange. The pressure-exchange compressor-expander utilizes non-steady flow principles and supersonic flow principles to obtai

A novel pressure-exchange compressor-expander is disclosed whereby a high energy primary fluid compresses a lower energy secondary fluid through direct fluid-fluid momentum exchange. The pressure-exchange compressor-expander utilizes non-steady flow principles and supersonic flow principles to obtain an ejector-compressor which can attain high adiabatic efficiencies while having a simplicity of construction, small size and weight, and the low manufacturing cost. This disclosure includes a fuel-cell pressurization system and humidity control system utilizing the pressure-exchange compressor-expander. The disclosure includes a novel turbo-charger for internal combustion engines incorporating exhaust gas recirculation capabilities. Further, an air-cycle heat pump suitable for aircraft applications is disclosed utilizing the pressure-exchange compressor-expander.

대표청구항 ▼

1. A pressure-exchange compressor-expander (70) comprising:a housing (11); and, a primary fluid inlet conduit (2) incorporated into said housing (11); and, a secondary fluid inlet conduit (3) incorporated into said housing (11); and, a plenum (24) which is internal to said housing (11) and receives

1. A pressure-exchange compressor-expander (70) comprising:a housing (11); and, a primary fluid inlet conduit (2) incorporated into said housing (11); and, a secondary fluid inlet conduit (3) incorporated into said housing (11); and, a plenum (24) which is internal to said housing (11) and receives secondary fluid from said secondary fluid inlet conduit (3); and, a supersonic nozzle (5) fixedly mounted within said housing (11), receiving primary fluid from said primary fluid inlet conduit (2), and which accelerates said primary fluid to form a supersonic stream at the nozzle discharge, said nozzle discharge being surrounded by said plenum (24); and, an outlet conduit (72) for the discharge of a first-fluid; and, an outlet conduit (74) for the discharge of a second-fluid; and, a spindle (14) rigidly mounted to said housing (11); and, a rotor (7) pivotally connected to said spindle (14), said rotor (7) comprising an axi-symmetric revolute body and a plurality of canted vanes (18) fixed to said rotor (7), a pressure-exchange section (77) downstream of said vanes, and a deflection section (78) wherein a plurality of deflectors (80) are placed azimuthally relative to said vanes (18) so that fractions of said primary fluid and said secondary fluid are deflected, said fractions of said primary fluid and said secondary fluid in combination constituting said first-fluid, whereby said deflectors (80) are separated by passages (79), having proportions of said primary fluid and said secondary fluid not included in said first-fluid passing through said passages (79) and in combination constituting said second-fluid; and, an aerodynamic shroud (10) which receives said secondary fluid from said plenum (24) and directs said secondary fluid towards said primary fluid in the vicinity of said vanes (18) so as to affect pressure-exchange between said primary and secondary fluids in said pressure-exchange section (77); and, a first-fluid extraction port (71) which directs said first-fluid to said first-fluid outlet conduit (72); and, a second-fluid extraction port (106) which directs said second-fluid to said second-fluid outlet conduit (74).