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:
Nov. 10, 2020
Filed:
Jul. 31, 2015
The Regents of the University of California, Oakland, CA (US);
Robert Woodrow Dibble, Berkeley, CA (US);
Miguel Sierra Aznar, Berkeley, CA (US);
Timothy Burke Sennott, Berkeley, CA (US);
Jyh-Yuan Chen, Berkeley, CA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);
Abstract
The present technology provides embodiments of recirculating noble gas combustion power cycles and systems including engines utilizing these power cycles. Embodiments of the cycles may include a combination of a high intake/exhaust pressure, very late or early intake valve closure, late exhaust valve opening, intake preheating using exhaust gases, sensible heat recovery, direct injection of fuel and/or oxidizer, and a condenser to remove combustion products and dissolved trace contaminant gases. An engine operating on these principles could provide motive force for electrical production, for example at power plants, or for transit, for example for ship engines. An engine operating with the cycles disclosed herein has high thermal efficiency and low cost. For example an argon power cycle using natural gas feedstock and cryogenic oxygen air separation could exceed 60% overall efficiency.