The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2024
Filed:
Sep. 24, 2019
Covestro Intellectual Property Gmbh & Co. KG, Leverkusen, DE;
Covestro Intellectual Property GmbH & Co. KG, Leverkusen, DE;
Abstract
Method for adjusting the volumetric flow ratio of at least two different fluids (F, F) with a control-device. The control-device comprises a first chamber with a chamber-volume (V) for the first fluid (F) and an inlet-element and an outlet-element for the first fluid (F) and at least one rotating or nutating element. The control-device further comprises at least one second chamber with a chamber-volume (V) for the second fluid (F), wherein the second chamber has an inlet-element and an outlet-element for the second fluid (F) and at least one rotating or nutating element. The rotating or nutating elements are coupled so as to rotate or nutate at a defined rotational or nutational frequency ratio and are driven by the fluids (F, F). The chamber volume ratio (V:V) and the rotational or nutational frequency ratio are selected such that the fluids (F, F) flowing out of the outlet-elements have a predefined volumetric flow ratio. The input resistor (R) of the respective inlet-element and the output resistor (R) of the respective outlet-element of the first chamber and/or the second chamber are chosen so as to satisfy the equation: (I), wherein ηis the viscosity of the respective fluid (F, F) and Cn designates the respective chamber.