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:
Oct. 29, 2019
Filed:
Jul. 20, 2017
Timothy J. Farrow, Fort Collins, CO (US);
Jerrod C. Pedley, Loveland, CO (US);
Roger M. Kifer, Fort Collins, CO (US);
Steven A. Deherrera, Fort Collins, CO (US);
Timothy J. Farrow, Fort Collins, CO (US);
Jerrod C. Pedley, Loveland, CO (US);
Roger M. Kifer, Fort Collins, CO (US);
Steven A. DeHerrera, Fort Collins, CO (US);
Woodward, Inc., Fort Collins, CO (US);
Abstract
Provided is a metering plate for a poppet-style valve in which the metering plate includes a peripheral edge structure that reduces the impact of edge variation as a result of typical manufacturing tolerances. The peripheral edge structure is located at the sealing surface and extends from the peripheral surface of the metering plate so as to avoid a sharp edge at the outer diameter of the metering plate. In embodiments, the peripheral edge structure is a chamfered surface or a curved surface. Small dimensional deviations from these surfaces resulting from typical manufacturing tolerances do not have a significant effect on the discharge coefficient of the metering plate. In this way, the discharge coefficients of poppet-style valves across a fluid admission system are contained in a much tighter range, thereby enhancing the efficiency of and control over the fluid admission system.