摘要:
IN COMBINATION WITH AN AIR INLET FOR AN AIR BREATHING ENGINE, A SHROUD LOCATED AHEAD OF THE INLET COWL TO EFFECT PRECOMPRESSION OF THE AIR PRIOR TO ENTRANCE INTO THE INLET, THE SHROUD HAVING A BREAK IN THE SHROUD WALL STRUCTURE, THE BREAK BEING LOCATED SUBSTANTIALLY OPPOSITE THE SURFACE OF THE SHROUD UPON WHICH COMPRESSION OF THE AIR OCCURS.
摘要:
AN APPARATUS TO EFFECT DEMINERALIZATION OF WATER BY THE PROCESS OF ELECTRODIALYSIS WHEREIN AN ION EXCHANGE MEMBRANE AND A SALT STORAGE ELEMENT ARE LOCATED IN A CROSS SECTIONAL SPIRAL CONFIGURATION, THE WATER TO BE DEMINERALIZED BY PASSING THROUGH THE APPARATUS ALSO IN A CROSS SECTIONAL SPIRAL CONFIGURATION.
摘要:
A plurality of valve elements, each valve element functioning to open and close a fluid passage, all valve elements operating simultaneously by a common magnetic field, each valve element being supported by an axial guidance flexure comprising a plurality of discs with spaces therebetween, each disc having a plurality of grooved cut-out sections which permit limited axial movement of the outer circumference of the disc with respect to the inner portion of the disc.
摘要:
A method and apparatus for producing a shell body of revolution with a substantially constant wall thickness comprising: Preparing the shell by accurately machining a surface concentric and perpendicular to the axis of the shell surface, the machined surface facilitating accurate alignment of the shell within the machining apparatus, cutting both the inside and outside surfaces of the shell simultaneously with the cutters at a fixed separation to maintain constant wall thickness; controlling the rotational velocity of the shell during machining with respect to the transverse movement of the cutters to maintain constant surface cutting speed by means of a pivotal eccentric cam operating upon at least one potentiometer.
摘要:
An aircraft engine which employs the use of a high bypass ratio fan and an ejector in combination with a ramjet, the fan being driven by a gas generator associated with the engine, the ejector formed of multiple jet nozzles to supply a monopropellent fluid forward of the combustion chamber of the engine.
摘要:
A variable exhaust nozzle for an air breathing propulsion system having an independently actuable convergent-divergent iris leaf section surrounding a fixed cut-off plug, a self-actuating blow in door assembly located within the exterior nozzle shell adjacent the convergent section.
摘要:
A preconditioner which is used for treating raw water before utilization in a water treatment or utilization process and which receives the concentrated waste water returning from the process. The preconditioner has two tanks which can contain either a permeable, strong acid cation exchanger or a permeable, weak acid resin or both. The tanks are connected in a push-pull arrangement, i.e., one tank receives the incoming raw water and the waste water leaves through the other tank. The strong acid cation exchanger in a preconditioner serves to presoften the water and the weak base anion exchanger in a preconditioner serves to add acid to the incoming water. The high salinity return water from the treatment or utilization process is discharged through the other tank to regenerate the preconditioner substance. A storage tank-salinity buffer combination receives the product water from a demineralizing unit and the tank contains a mixture of anion and cation responsive materials and a weak base material. The mixture of anion and cation responsive materials serves to soften the product during high demand periods and the weak base serves to remove acid during the same periods. During the off supply periods, the weak base releases acid to help regenerate both the preconditioner and cation responsive storage material and the mixture of cation and anion responsive materials releases salt to the product water which is then removed. The preconditioner and storage tank-salinity buffer combination can be utilized with different types of demineralization units.
摘要:
A disposable module containing all equipment, instruments and material required to circulate and treat the dialysate solution during the treatment of the patient. The module is of inexpensive construction so that it can be thrown away after a single treatment. When the artificial kidney membrane is separate from the module, two lines connect the module to the artificial kidney membrane and when the artificial kidney membrane is contained in the module, two lines connect the module directly to the patient. The module contains separate compartments for the chemicals which treat the dialysate solution and has separate compartments which serve as a reservoir and as a container for a reconstitution fluid. All passages are formed integral with the module and all instruments are of simple, cheap construction which can be disposed of with the module.
摘要:
THE METHOD AND APPARATUS FOR REMOVING THE WASTE METABOLITES FROM THE DIALYZING FLUID OF AN ARTIFICIAL KIDNEY WHEREIN THE TEMPERATURE OF THE DIALYZING FLUID IS LOWERED PRIOR TO THE FLUID ENTERING A FIRST CARBON SORBENT CHAMBER, THE CARBON ABSORBING THE WASTE METABOLITES, A PORTION OF THE FLUID LEAVING THE FIRST CHAMBER BEING RAISED IN TEMPERATURE AND MOVED INTO A SECOND CARBON SORBENT CHAMBER HAVING A HIGH PERCENTAGE OF ABSORBED WASTE METABOLITES, THE FLUID AFTER LEAVING THE SECOND SORBENT CHAMBER BEING LOWERED IN TEMPERATURE AND CAUSED TO COME INTO CONTACT WITH A THIRD SORBENT CHAMBER, A PORTION OF THE FLUID AFTER LEAVING THE THIRD SORBENT CHAMBER BEING RETURNED TO REENTER THE FIRST SORBENT CHAMBER.
摘要:
A recirculating dialysate system for use with an artificial kidney in which the total volume of dialysate solution is controlled. After leaving the artificial kidney, the urea in the solution is removed in a zirconium phosphate column containing urease and the other waste products are removed in a carbon column containing activated carbon and hydrated zirconium oxide. The solution passes through the dialysate reservoir (or container) where it was originally introduced and where the level of solution indicates the amount of fluid removed from the body. Downstream of the dialysate reservoir, the solution is reconstituted by the addition of magnesium and calcium (removed in the zirconium phosphate column) so that these substances will not be removed from the blood in the kidney. The rate at which water passes from the blood into the dialysate solution can be controlled by controlling the pressure of the dialysate solution on the dialysate side of the kidney membrane, so that sufficient water can be removed to arrive at water balance in the patient.