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:
Sep. 01, 1992
Filed:
Jan. 28, 1991
Enoch J Durbin, Princeton, NJ (US);
Other;
Abstract
A system is described that combines two or more fluids in fixed proportions over a wide range of flow rates, in which said proportions are independent of the rate of flow of the fluids, by causing each of said fluids to experience a drop in pressure which is approximately proportional to said fluid flow. An important application of such a system is to serve as a fuel-oxidizer combiner for a combustion engine to provide a constant ratio of air to fuel over a wide range of engine power output. The invention is especially useful in controlling the ratio of air to natural gas in natural gas fueled engines, where the gas is stored at very high pressures and is normally reduced to atmospheric pressure before being mixed with the air in an air-gas mixer.