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. 14, 2000
Filed:
Dec. 22, 1998
Gerard H Bueche, Byron, IL (US);
Mark Reinecke, Machesney Park, IL (US);
Hamilton Sundstrand Corporation, Rockford, IL (US);
Abstract
A fluid driven turbine for use in generating power by driving a load (32) with a fluid stream intercepting blades (12) of the turbine and the turbine applying power to the load during rotation of the blades in accordance with the invention includes a variable displacement hydraulic pump (19) which is driven by rotation of the blades, including a displacement control (57) having an element (62) which is responsive to a control signal for varying the displacement of the variable displacement hydraulic pump for producing a pressurized hydraulic fluid output to drive the load; and a hydraulic control valve (90) which generates the control signal in response to a hydraulic signal which is a function of speed changes of the blades and a pressure dropping orifice (114'), responsive to the hydraulic signal which is a function of speed changes of the blades which bleeds the hydraulic signal to a lower pressure, the orifice producing a coefficient of discharge of liquid independent of viscosity thereof; and wherein the control signal causes the element to vary displacement of the variable displacement pump which is a function of speed changes of the blades.