140results about How to "Prevent excess flow" patented technology

Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle.

A silicon-made low-forward-voltage Schottky barrier diode is serially combined with a high-antivoltage-strength high-electron-mobility transistor made from a nitride semiconductor that is wider in bandgap than silicon. The Schottky barrier diode has its anode connected to the gate, and its cathode to the source, of the HEMT. This HEMT is normally on. The reverse voltage withstanding capability of the complete device depends upon that between the drain and gate of the HEMT.

A turbine engine ring seal for sealing gaps between turbine engine outer seal segments and turbine blade tips. The turbine engine ring segment may have an inner radial surface that defines a portion of a gap gas flow path where the inner radial surface may be formed of an abradable ceramic coating and includes a plurality of gas flow protrusions that are oriented transverse to the gap gas flow path. The gas flow protrusions may induce vortices in the gas flow in the gap gas flow path. Additionally, the gas flow protrusions may be series of peaks and depressions between two adjacent peaks, where the depressions have an approximate semicircular shape. The distance between two adjacent peaks may be equal or greater than a width of the depression and the height of a single peak may be six percent or greater than the distance between two adjacent peaks.

A debris filter has a housing, a filter screen mounted to the housing and disposed so as to extend across a flow path through the housing, a debris extractor mounted to the housing, and a splitter bar also mounted to the housing. The debris extractor and the filter screen are so mounted to the housing as to enable rotation of the filter screen and the debris extractor relative to one another. The debris extractor has a debris intake opening and the debris extractor and the splitter bar are so mounted to the housing that the intake opening is positionable adjacent to or in juxtaposition with the splitter bar with the splitter bar overlapping and shielding the intake opening.

A debris filter has a housing, a filter screen mounted to the housing and disposed so as to extend across a flow path through the housing, a debris extractor mounted to the housing, and a splitter bar also mounted to the housing. The debris extractor and the filter screen are so mounted to the housing as to enable rotation of the filter screen and the debris extractor relative to one another. The debris extractor has a debris intake opening and the debris extractor and the splitter bar are so mounted to the housing that the intake opening is positionable adjacent to or in juxtaposition with the splitter bar with the splitter bar overlapping and shielding the intake opening.

A water cooled valve is provided in the form of a check valve, an air purge valve, a distributor valve, a combination air purge and distributor valve and the like for use in the liquid fuel system of a gas turbine. A movable valve member controls the flow of fluid through the valve's fuel circuit. A separate cooling circuit circulates cooling water through the valve near or alongside the valve member. The water is of a lower temperature than the high temperature liquid fuel, and thereby carries away heat transferred to the valve by the fuel. In one form, the cooling circuit is formed in part by a helical groove in the periphery the valve body housing the valve member. A sealed water jacket surrounds the valve body and has dedicated supply and return ports for coupling the valve to a water supply via water lines. The water ports are positioned tangentially to induce swirling flow inside the valve.