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5630703 Rotor disk post cooling system
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PatentsALERT
sink space with the heat exchanger inlet contains a valve controllable by the fluid pressure, and between the outlet of the casing and an inlet of the sink space is provided a pump for delivering water from the casing to the sink space, the pressure of the fluid delivered by the pump being selected in such a way that the controllable valve opens.
5630985 CHEMICAL AGENTS AND METHOD FOR THE INHIBITION OF CORROSION AND DEPOSIT FORMATION IN WATER SYSTEMS Williams Dennis C; Rycroft Christopher P Upchurch, UNITED KINGDOM assigned to Buckman Laboratories International Inc
5630703 ROTOR DISK POST COOLING SYSTEM Hendley David G; Fledderjohn Steve R; Bauer Randall; Clarke Jonathon; Webb Alan L Wyoming, OH, UNITED STATES assigned to General Electric Company A cooling system for use in a rotor assembly of a gas turbine engine, the rotor assembly including an annular disk rotatable about a centerline axis of the engine and a plurality of blades mounted on the disk. The disk includes alternating posts and slots, with each slot receiving a blade dovetail. The cooling system comprises an axially extending plenum disposed inward of each blade dovetail and a thermal isolation chamber, formed by a seal body, disposed over the outer surface of each disk post. An annular forward blade retainer is attached to the disk and sealed with adjacent structures via inner and outer seals. Alternative structures are disclosed for diverting the cooling air from the plenums, past the inner and outer seals, and into the isolation chambers during operation of the engine so as to cool each disk point, without compromising the structural integrity of the forward blade retainer. The cooling system further includes an aft retention member forming in part an annular plenum in fluid flow communication with each of the axially extending plenums. The annular plenum is further in fluid flow communication with a plurality of passages formed between disk post and blade dovetail relief surfaces, with air flowing through these passages effective for further cooling the disk posts. The air flowing through at least a portion of these passages is subsequently directed to the thermal is isolation chambers.
PCT No. PCT/GB93/00139 Sec. 371 Date Jan. 4, 1995 Sec. 102(e) Date Jan. 4,199s PCT Filed Jan. 22, 1993 PCT Pub. No. WO94/17221 PCT Pub. Date Aug. 4, 1994. A chemical formulation and method are provided for the treatment of water to prevent, control or inhibit corrosion and/or deposits, particularly for the treatment of water in water distribution piping and equipment and associated heat exchangers and more particularly for the treatment of water in heat transfer equipment wherein water or steam is employed as the heat transfer medium. The method treats the water with at least one mono- or polyhydric alcohol. Optionally, the treatment formulation is a blend of mono- or polyhydric alcohols and further optionally includes one or more of a mixed molecular weight polyacrylic acid and/or at least one salt thereof; at least one chromium-free lignosulfonate, and at least one carboxylic acid and/or at least one salt thereof, the carboxylic acid being different from the poly acrylic acid.
5632143 GAS TURBINE SYSTEM AND METHOD USING TEMPERATURE CONTROL OF THE EXHAUST GAS ENTERING THE HEAT RECOVjZRY CYCLE BY MIXING WITH . AMBIENT AIR Fisher Uriye; Sinai Joseph; Gilon Yoel Haifa, ISRAEL assigned to Ormat Industries Ltd A gas turbine system with a heat recovery cycle includes a gas turbine unit that produces hot exhaust gases which are applied to a heat recovery heat exchanger containing a working fluid
PatentsALERT
sink space with the heat exchanger inlet contains a valve controllable by the fluid pressure, and between the outlet of the casing and an inlet of the sink space is provided a pump for delivering water from the casing to the sink space, the pressure of the fluid delivered by the pump being selected in such a way that the controllable valve opens.
5630985 CHEMICAL AGENTS AND METHOD FOR THE INHIBITION OF CORROSION AND DEPOSIT FORMATION IN WATER SYSTEMS Williams Dennis C; Rycroft Christopher P Upchurch, UNITED KINGDOM assigned to Buckman Laboratories International Inc
5630703 ROTOR DISK POST COOLING SYSTEM Hendley David G; Fledderjohn Steve R; Bauer Randall; Clarke Jonathon; Webb Alan L Wyoming, OH, UNITED STATES assigned to General Electric Company A cooling system for use in a rotor assembly of a gas turbine engine, the rotor assembly including an annular disk rotatable about a centerline axis of the engine and a plurality of blades mounted on the disk. The disk includes alternating posts and slots, with each slot receiving a blade dovetail. The cooling system comprises an axially extending plenum disposed inward of each blade dovetail and a thermal isolation chamber, formed by a seal body, disposed over the outer surface of each disk post. An annular forward blade retainer is attached to the disk and sealed with adjacent structures via inner and outer seals. Alternative structures are disclosed for diverting the cooling air from the plenums, past the inner and outer seals, and into the isolation chambers during operation of the engine so as to cool each disk point, without compromising the structural integrity of the forward blade retainer. The cooling system further includes an aft retention member forming in part an annular plenum in fluid flow communication with each of the axially extending plenums. The annular plenum is further in fluid flow communication with a plurality of passages formed between disk post and blade dovetail relief surfaces, with air flowing through these passages effective for further cooling the disk posts. The air flowing through at least a portion of these passages is subsequently directed to the thermal is isolation chambers.
PCT No. PCT/GB93/00139 Sec. 371 Date Jan. 4, 1995 Sec. 102(e) Date Jan. 4,199s PCT Filed Jan. 22, 1993 PCT Pub. No. WO94/17221 PCT Pub. Date Aug. 4, 1994. A chemical formulation and method are provided for the treatment of water to prevent, control or inhibit corrosion and/or deposits, particularly for the treatment of water in water distribution piping and equipment and associated heat exchangers and more particularly for the treatment of water in heat transfer equipment wherein water or steam is employed as the heat transfer medium. The method treats the water with at least one mono- or polyhydric alcohol. Optionally, the treatment formulation is a blend of mono- or polyhydric alcohols and further optionally includes one or more of a mixed molecular weight polyacrylic acid and/or at least one salt thereof; at least one chromium-free lignosulfonate, and at least one carboxylic acid and/or at least one salt thereof, the carboxylic acid being different from the poly acrylic acid.
5632143 GAS TURBINE SYSTEM AND METHOD USING TEMPERATURE CONTROL OF THE EXHAUST GAS ENTERING THE HEAT RECOVjZRY CYCLE BY MIXING WITH . AMBIENT AIR Fisher Uriye; Sinai Joseph; Gilon Yoel Haifa, ISRAEL assigned to Ormat Industries Ltd A gas turbine system with a heat recovery cycle includes a gas turbine unit that produces hot exhaust gases which are applied to a heat recovery heat exchanger containing a working fluid