Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
415 words
Fluid supply apparatus of the induction type comprising an elongate chamber having rectangularly disposed walls defining an elongate passage and having at one end an opening comprising an inlet opening, in one wall at the other end an opening comprising an outlet opening and in the same wall an intermediate opening, a valve housing at the inlet opening of the chamber containing a valve operable to control the flow of primary air into the chamber through the inlet opening, said valve housing embodying a constriction, a valve element located at the upstream side of the constriction such that the valve is operable to close the passage through the housing into the chamber by movement into the constriction, and comprising a spindle fixed to the valve element and extending therefrom in the direction of flow, an arm pivotally connected at one end to the distal end of the spindle and intermediate its ends in an opening in the valve housing, said arm extending from the valve housing, a fixed vane supported transversely of the chamber, said vane extending inwardly at an angle from the wall opposite to that containing the intermediate opening toward said wall containing the intermediate opening and in the direction of flow, the distal edge of said fixed vane terminating close to but spaced from the median plane of the chamber, a movable vane disposed transversely of the chamber in confronting relation to the fixed vane on the wall containing said intermediate opening, means pivotally supporting the movable vane on said wall so as to be movable from a position flat against said wall and in said position overlying said intermediate opening to an inwardly extending angular position in which it is symmetrically disposed with respect to the fixed vane, said vanes collectively defining a restricted flow passage for the primary air through which primary air is adapted to flow in the direction of the discharge opening and being so located with respect to the intermediate opening that the secondary air enters the chamber at said restricted portion of the flow passage, a crank arm fixed to the means pivotally supporting the movable vane, a link connecting the distal end of the crank arm to the outer extremity of said arm extending from the valve housing, and a motor pivotally connected to said arm intermediate the link and the pivot operable by angular displacement of said arm to vary the areas of the restricted flow passage and the intermediate opening in inverse proportion.
Claim 2
Dependent Claim
415 words
Fluid supply apparatus of the induction type comprising an elongate chamber having rectangularly disposed walls defining an elongate passage and having at one end an opening comprising an inlet opening, in one wall at the other end an opening comprising an outlet opening and in the same wall an intermediate opening, a valve housing at the inlet opening of the chamber containing a valve operable to control the flow of primary air into the chamber through the inlet opening, said valve housing embodying a constriction, a valve element located at the upstream side of the constriction such that the valve is operable to close the passage through the housing into the chamber by movement into the constriction, and comprising a spindle fixed to the valve element and extending therefrom in the direction of flow, an arm pivotally connected at one end to the distal end of the spindle and intermediate its ends in an opening in the valve housing, said arm extending from the valve housing, a fixed vane supported transversely of the chamber, said vane extending inwardly at an angle from the wall opposite to that containing the intermediate opening toward said wall containing the intermediate opening and in the direction of flow, the distal edge of said fixed vane terminating close to but spaced from the median plane of the chamber, a movable vane disposed transversely of the chamber in confronting relation to the fixed vane on the wall containing said intermediate opening, means pivotally supporting the movable vane on said wall so as to be movable from a position flat against said wall and in said position overlying said intermediate opening to an inwardly extending angular position in which it is symmetrically disposed with respect to the fixed vane, said vanes collectively defining a restricted flow passage for the primary air through which primary air is adapted to flow in the direction of the discharge opening and being so located with respect to the intermediate opening that the secondary air enters the chamber at said restricted portion of the flow passage, a crank arm fixed to the means pivotally supporting the movable vane, a link connecting the distal end of the crank arm to the outer extremity of said arm extending from the valve housing, and a motor pivotally connected to said arm intermediate the link and the pivot operable by angular displacement of said arm to vary the areas of the restricted flow passage and the intermediate opening in inverse proportion.
Claim 3
Dependent Claim
22 words
Apparatus according to claim 1, wherein said movable vane operates when completely closing the restricted passage to completely open said intermediate opening.
Claim 4
Dependent Claim
51 words
Apparatus according to claim 1, wherein said adjustable valve is of the type for each adjusted position which will pass air at a rate that is constant over a corresponding range of differential pressures whereby said apparatus will provide a constant volume of flow of said primary air for uniform induction.