Arthur Charles Pintauro
Engineers at Compass Ct, Fort Collins, CO
License number
Colorado 34000
Issued Date
Jul 13, 1999
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
2457 Compass Ct, Fort Collins, CO 80526
Professional information
Continuously Variable Electrically Actuated Flow Control Valve For High Temperature Applications
US Patent:
6079210, Jun 27, 2000
Filed:
Jul 16, 1998
Appl. No.:
9/118156
Inventors:
Arthur C. Pintauro - Fort Collins CO
Donald R. Samuelson - Fort Collins CO
Henri A. Siedow - Fort Collins CO
Donald R. Samuelson - Fort Collins CO
Henri A. Siedow - Fort Collins CO
Assignee:
Woodward Governor Company - Loveland CO
International Classification:
F02D 2300, F02B 4708
US Classification:
60602
Abstract:
A continuously variable electrical actuator rotationally coupled to and thermally isolated from a butterfly valve. The butterfly valve may be used to modulate high temperature exhaust gas flow through an engine turbocharger. An electrical actuator provides a continuously variable output to an output shaft. The butterfly valve has its rotary position controlled by an input shaft. The input shaft and output shaft are rotationally coupled through minimum contact points to reduce heat transfer. The connection between input and output shafts also minimizes vibration transfer therebetween. An coupling tube coaxially interposed between the input and output shafts provides a thermal block to further reduce heat transfer. The input and outputs shafts are rotationally coupled to the intermediate shaft by torsion spring mechanisms to allow a limited range of axial translation for the input shaft. The torsion spring mechanisms are preloaded to prevent rotational hysteresis in the butterfly valve.
Tortionally Stiff, Thermally Isolating Shaft Coupling With Multiple Degrees Of Freedom To Accommodate Misalignment
US Patent:
8480054, Jul 9, 2013
Filed:
May 30, 2008
Appl. No.:
12/130276
Inventors:
Arthur C. Pintauro - Fort Collins CO, US
Assignee:
Woodward, Inc. - Fort Collins CO
International Classification:
F16K 31/44
US Classification:
251 77, 25112911, 251305, 464134
Abstract:
A coupling arrangement coupling and thermally isolating a continuously variable electrical actuator rotationally coupled to and from a butterfly valve is provided. The valve may be used to modulate high temperature exhaust gas flow through an engine turbocharger. The actuator provides a continuously variable control of the valve. The coupling arrangement provides a thermal block to reduce heat transfer and vibration insulation between the actuator and the valve. The coupling arrangement generally includes a coupling shaft rotationally coupled at opposite ends to the input and output shafts by torsion spring mechanisms. The torsion spring mechanisms include yokes rotationally locking the coupling shaft to the input and output shafts. The torsion spring mechanisms allow a limited range of axial and pivotal translation between the coupling shaft and the input and output shafts and are preloaded to prevent rotational hysteresis in the valve.