Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soler and Palau SA
Original Assignee
Soler and Palau SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soler and Palau SAfiledCriticalSoler and Palau SA
Priority to ES1968139733UpriorityCriticalpatent/ES139733Y/en
Publication of ES139733UpublicationCriticalpatent/ES139733U/en
Application grantedgrantedCritical
Publication of ES139733YpublicationCriticalpatent/ES139733Y/en
Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
Centrifugal fan characterized by comprising an envelope formed by two pieces of cast iron that have essentially circular shapes of matching diameters, and that fit conveniently together, one of whose parts is constituted by a simple flat lid, equipped with a circular opening eccentric which constitutes the intake opening of the fan, while the other piece is completely open on its front face, in which it receives the aforementioned cover, and forms the volute or chamber inside which the corresponding runner moves ; the perimeter of whose volute is defined by two different curves conveniently linked to each other, presenting a part in arc of a circle, coinciding with the periphery of the piece and eccentric with respect to the axis of the impeller, and a spiral part, which moves away progressively of the indicated periphery, which comes in this area defined by a flange of progressively increasing width, against which the said lid adjusts. (Machine-translation by Google Translate, not legally binding)