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:
Jul. 16, 2024
Filed:
Jun. 17, 2021
Edwards Technologies Vacuum Engineering (Qingdao) Company Limited, Shandong, CN;
Abstract
A system comprising: a liquid ring pump () comprising: a chamber (); a suction inlet; an exhaust outlet; and an operating liquid inlet; a gas line () coupled to the liquid ring pump (); a valve () disposed on the gas line (); a first sensor () configured to measure a first parameter of the inlet fluid; a second sensor () configured to measure a second parameter of either the operating liquid, the exhaust fluid, or a fluid within the chamber; and a controller () configured to: determine a vapour pressure of the operating liquid using the second parameter; and control operation of the valve () based on the first parameter and the vapour pressure.
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