Feng Liu

US Patent:

20120256107, Oct 11, 2012

Filed:

Apr 3, 2012

Appl. No.:

13/438662

Inventors:

Dimitri Papamoschou - Mission Viejo CA, US
Feng Liu - Irvine CA, US

Assignee:

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA - Oakland CA

International Classification:

F16L 55/02

US Classification:

251118

Abstract:

A bleed valve that expels a gas from a compressed region includes a valve section and a muffler section coupled to and located downstream from the valve section. The valve section includes a centerbody and a housing. The centerbody supports a plunger that controls opening and closing of the bleed valve. The centerbody is coupled to the housing by at least one strut disposed substantially radially. The at least one strut may have a cross-section that reduces or suppresses flow separation and vortex shedding from the at least one strut. The muffler section may include a baffle plate and a dome plate. A honeycomb may be installed between the baffle plate and the dome plate. The bleed valve may also include a middle plate on a face of the honeycomb and a conical diverter immediately upstream from the baffle plate. Other embodiments are also described.