Patent ES-8505547-A3 (ES)
Title: Oxygen concentrator using pressure swing adsorption
IPC: A61M16/00
Filed: 1984-09-24
Abstract: O2concentrator for producing O2-enriched air by pressure swing adsorption (PSA) includes modifications to the adsorbent bed, compressor intake, fan mounting and electrical circuitry and the use of modular construction to provide a concentrator, for medical use in the home, which is lightweight, reliable, quiet and compact.  (5/10) DEAB- DE3205809 C A gas component is sepd. from a gas mixt. using an appts. which includes a gas compressor and an adsorption bed chamber. The container consists of a first tube of predetermined length, a second tube inside the first, which is slightly shorter, and end closing members, one of which also closes the inner tube. A connection is made between the inner tube and the surrounding outer tube, to increase the working length of the bed in the container. - The arrangement is compact, economical to run, and quieter in operation. It is used to e.g. supply oxygen enriched air for medical purposes.  (10pp)o GBAB- GB2104409 B O2concentrator for producing O2-enriched air by pressure swing adsorption (PSA) includes modifications to the adsorbent bed, compressor intake, fan mounting and electrical circuitry and the use of modular construction to provide a concentrator, for medical use in the home, which is lightweight, reliable, quiet and compact.  (17pp Dwg.No.5/10) - GB2104409 B 1. A machine for separating a component gas out of a mixture of gases using a pressure swing adsorption technique, comprising a cabinet containing a vessel comprising a first pipe of predetermined length, comprising the body of said vessel, a second pipe of a predetermined length shorter than said first pipe and positioned within said first pipe to create an annular space between said first and second pipes, means to close both ends of said first pipe, one of said end closing means for said first pipe also closing one end of said second pipe, adsorbent material in said first pipe and in said annular space forming an adsorbent bed, and means to permit a flow of gas through said one end closing means communicating separately with said annular space and with the space inside said second pipe, whereby the functional length of the adsorbent bed on said vessel is substantially equal to twice the length of said first pipe and the physical length of said vessel is substantially equal to the legth of said first pipe, said cabinet also including means dividing the space within the cabinet into at least a first space and a second space, motor/compressor means mounted in said first space, insulating means lining substantially all of the inside surfaces of said cabinet defining said first and second spaces, means to permit the entry of a stream of ambient air from outside the cabinet into said second space, said means defining said first and second spaces including an opening to permit the flow of said stream of ambient air from said second space into said first space, fan means in said first space to drive said stream of ambient air out of said first space to drive said stream of ambient air out of said first space to the exterior of the cabinet, and said motro/compressor being located in said first space with respect to the opening between said first and second spaces and with respect to said air inlet opening means in said second space such that the sound of said motor/compre