Flap-equipped power fluid amplifier

Claim 2

A fluid amplifier having in combination: a fluid flow inlet; a pair of fluid flow outlets; at least one control fluid inlet; at least one pivotable flap member which is of generally triangular contour in plain view and located downstream of the control fluid inlet so as to be non-responsive directly to fluid entering said control fluid inlet, said member being pivotably journalled about an axis located within its triangular contour and selectively operable between two distinctively different positions in each of which said fluid flow inlet communicates for fluid flow with a respective one only of said fluid flow outlets, said flap being actuated from a first to a second of its two positions only in response to the momentary diversion of the direct flow path between said fluid flow inlet and the then-active fluid flow outlet in response to an input to said control fluid inlet which momentary diversion causes said fluid to impinge upon sai flap and quickly actuates said flap to its second position, and a partition wall between said fluid flow outlets defining therein a return conduit, said triangular flap member having a downstream base side formed with a concave configuration towards the center of gravity of said flap member for allowing the by-pass of a return fluid flow through the passive outlet back through the return conduit.

Claim 3

A fluid amplifier according to claim 1, characterized in that two flap members are arranged side-by-side substantially in register with each edge of the return conduit in the partition wall.

Claim 4

A fluid amplifier having in combination: a fluid flow inlet; a pair of fluid flow outlets; at least one control fluid inlet; at least one pivotable flap member which is of generally triangular contour in plain view and located downstream of the control fluid inlet so as to be non-responsive directly to fluid entering said control fluid inlet, said member being pivotably journalled about an axis located within its triangular contour and selectively operable between two distinctively different positions in each of which said fluid flow inlet communicates for fluid flow with a respective one only of said fluid flow outlets, said flap being actuated from a first to a second of its two positions only in response to the momentary diversion of the direct flow path betweeN said fluid flow inlet and the then-active fluid flow outlet in response to an input to said control fluid inlet which momentary diversion causes said fluid to impinge upon said flap and quickly actuates said flap to its second position, said flap member having the shape of a sector of a circle with the partition wall between the fluid flow outlets closely following said sector periphery, said flap member adjacent its circularly arcuate base side opposite the pivot axis being provided with a connecting conduit extending substantially parallel to said base side and at each end opening to at least one port at right angles to the plane of the flap member and adapted to be connected with, at one hand, a respective one of said outlets and, on the other hand, with a return conduit arranged between said pair of outlets and adapted to allow a by pass of a fluid flow returning through said respective outlet to said return conduit, said pair of outlets as well as said return conduit being arranged to open into the fluid amplifier chamber at right angles to the plane of the flap member in register with the ports belonging to the connecting conduit.

Claim 5

A fluid amplifier having in combination: a fluid flow inlet; a pair of fluid flow outlets; at least one control fluid inlet; at least one pivotable flap member which is of generally triangular contour in plain view and located downstream of the control fluid inlet so as to be non-responsive directly to fluid entering said control fluid inlet, said member being pivotably journalled about an axis located within its triangular contour and selectively operable between two distinctively different positions in each of which said fluid flow inlet communicates for fluid flow with a respective one only of said fluid flow outlets, said flap being actuated from a first to a second of its two positions only in response to the momentary diversion of the direct flow path betweeN said fluid flow inlet and the then-active fluid flow outlet in response to an input to said control fluid inlet which momentary diversion causes said fluid to impinge upon said flap and quickly actuates said flap to its second position, said flap member having the shape of a sector of a circle with the partition wall between the fluid flow outlets closely following said sector periphery, said flap member adjacent its circularly arcuate base side opposite the pivot axis being provided with a connecting conduit extending substantially parallel to said base side and at each end opening to at least one port at right angles to the plane of the flap member and adapted to be connected with, at one hand, a respective one of said outlets and, on the other hand, with a return conduit arranged between said pair of outlets and adapted to allow a by pass of a fluid flow returning through said respective outlet to said return conduit, said pair of outlets as well as said return conduit being arranged to open into the fluid amplifier chamber at right angles to the plane of the flap member in register with the ports belonging to the connecting conduit.