Patent application number | Description | Published |
20130032232 | Human Powered Irrigation Diaphragm Pump - A pump system includes a pump unit an assembly frame that receives first and second pumps. A first and second pedal respectively couples to a first and second pump actuating portion. A rocker arrangement has a rocker that pivotally couples the first and second pedals, so a pushing movement of the first pedal in one direction causes a pulling movement of the second pedal in an opposite direction, and vice versa. The first and second pedals respond to a pushing force, respectively move the first and second pump actuating portions for pumping a fluid from the first and second pumps, and correspondingly move the first and second pump actuating portions for drawing the fluid to be pumped into the first and second pumps. | 02-07-2013 |
20140356198 | Solar Powered Portable Submersible Water Pump - A pumping system for pumping water from streams, ponds or shallow wells having a predetermined depth, featuring a reel assembly to rotate so as to receive, roll-up and retain a hose; a submersible pump assembly having submersible pumps, each connected to a manifold in parallel so as to form a parallel pump configuration, the manifold having a hose connection to couple to the hose; a solar panel to couple and electrically power the submersible pump assembly; and a portable cart having a frame with a first frame part to affix to the reel assembly, a second frame part to affix to the solar panel, a third frame part to detachably receive and retain the submersible pump assembly, and a fourth frame part to affix to the wheel assembly to roll the pump system to a remote location for pumping water in areas with little or no access to grid electricity or liquid fuel. | 12-04-2014 |
Patent application number | Description | Published |
20100281879 | MULTI-SOURCE GAS TURBINE COOLING - A cooling arrangement for a gas turbine engine includes: (a) a turbine nozzle having: (i) spaced-apart arcuate inner and outer bands; and (ii) a hollow, airfoil-shaped turbine vane extending between the inner and outer bands, the vane disposed in a primary flowpath of the engine; (b) a supporting structure coupled to the outer band such that an outer band cavity is defined between the outer band and the stationary structure; (c) a first conduit passing through the outer band cavity and communicating with the interior of the vane, the first conduit coupled to a first source of cooling air within the engine; and (d) a second conduit communicating with the outer band cavity, the second conduit coupled to a second source of cooling air within the engine. | 11-11-2010 |
20110206502 | TURBINE SHROUD SUPPORT THERMAL SHIELD - A turbine shroud assembly includes an annular thermal shield around an annular shroud support. A honeycomb layer is attached to the shroud support along an inner side of the honeycomb layer and a heat shield is attached to an outer side of the honeycomb layer. The honeycomb layer may be brazed to the shroud support and the heat shield may be brazed to the honeycomb layer. A lip may depend inwardly from a forward end of the heat shield and an axial extension may extend beyond an aft end of the honeycomb layer. The thermal shield may be segmented. The shroud assembly may include axially spaced apart first and second stage thermal shields circumferentially disposed around an annular shroud support and may be incorporated in a high pressure turbine including first and second stage shrouds coupled to shroud hangers that are inwardly supported by hooks of the shroud support. | 08-25-2011 |
20130156550 | MOUNTING APPARATUS FOR LOW-DUCTILITY TURBINE SHROUD - A shroud apparatus for a gas turbine engine includes: an annular metallic hanger; a shroud segment disposed inboard of the hanger, comprising low-ductility material and having a cross-sectional shape defined by opposed forward and aft walls, and opposed inner and outer walls, the walls extending between opposed first and second end faces, wherein the inner wall defines an arcuate inner flowpath surface; and a retainer mechanically coupled to the hanger which engages the shroud segment to retain the shroud segment to the hanger while permitting movement of the shroud segment in a radial direction. | 06-20-2013 |
20130156556 | LOW-DUCTILITY TURBINE SHROUD - A shroud segment for a gas turbine engine, the shroud segment constructed from a composite material including reinforcing fibers embedded in a matrix, and having a cross-sectional shape defined by opposed forward and aft walls, and opposed inner and outer walls, the walls extending between opposed first and second end faces, wherein the inner wall defines an arcuate inner flowpath surface; and wherein a compound fillet is disposed at a junction between first and second ones of the walls, the compound fillet including first and second portions, the second portion having a concave curvature extending into the first one of the walls. | 06-20-2013 |