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4859147 |
Cooled gas turbine blade
The airfoil shaped body has a separate leading edge portion (14) spaced from the main body (12). Slots (22) thereby formed discharge cooling air parallel to surface (38) of the main body. A step...
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4827587 |
Method of fabricating an air cooled turbine blade
A turbine blade is formed from an airfoil blade 10 having V-grooves 12 in the outer surface and indentations 26 in the inner surface. A slot 30 is machined at the root of the groove intersecting...
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4820123 |
Dirt removal means for air cooled blades
A dirt removal means for air cooled blades for removing dirt at the blade of a gas turbine engine. The means is a stamped out sheet metal that defines a deflector or plurality of deflectors adapted...
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4818178 |
Process for cooling the blades of thermal turbomachines
Cooling air flows over the inner wall of the blade, and emerges through sl orifices provided in the blade jacket in the region of the boundary layer. The cooling air is admitted tangentially into...
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4795307 |
Method and apparatus for optimizing the vane clearance in a multi-stage axial flow compressor of a gas turbine
A method and apparatus for optimizing the radial clearance of rotor and stator vanes with their opposed structure for axial flow compressors of gas turbine power plants in which rotor disks are...
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4786234 |
Turbine airfoil
A turbine airfoil, such as a turbine blade or nozzle vane, is disclosed for use in a high temperature environment. The airfoil comprises a center post and at least one side piece. The side piece is...
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4786233 |
Gas turbine cooled blade
The penetrating members (21, 35, 37, 38, 39) are disposed inside the cooling passage (8) at positions so as to penetrate through the cooling passage (8), and have both of ends thereof fixed to the...
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4775296 |
Coolable airfoil for a rotary machine
A coolable airfoil 10 for rotary machines is disclosed. The airfoil has a passage 54 extending spanwisely through the leading edge region 26 of the blade. The first passage has a plurality of trip...
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4770608 |
Film cooled vanes and turbines
The film of cooling air adjacent the outer surface of the airfoil of a turbine of a gas turbine engine issuing from internally of the turbine subsequent to cooling is controlled by regulating the...
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4767268 |
Triple pass cooled airfoil
A hollow, cooled airfoil has a pair of nested, coolant channels therein which carry separate coolant flows back and forth across the span of the airfoil in adjacent parallel paths. The coolant in...
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4762464 |
Airfoil with diffused cooling holes and method and apparatus for making the same
Air cooling of airfoils in a gas-turbine engine is effected through holes which terminate with a diffuser formation at the airfoil surface. The invention is directed to a two-step procedure whereby...
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4761116 |
Turbine blade with tip vent
In a turbomachine having stationary and rotating bladed stages, the blades of the rotating bladed stage are cooled by ducting cooling fluid into an interior cavity formed in each blade. Each...
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4753575 |
Airfoil with nested cooling channels
A hollow, cooled airfoil has a pair of nested, coolant channels therein which carry separate coolant flows back and forth across the span of the airfoil in adjacent parallel paths. The coolant in...
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4752186 |
Coolable wall configuration
A coolable wall configuration includes a slot formed between two wall portions for carrying coolant fluid in a downstream direction wherein the slot is divided into a plurality of parallel channels...
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4738587 |
Cooled highly twisted airfoil for a gas turbine engine
A cooled highly twisted airfoil (1) includes an integrally formed continuous warped wall (12) defined as a surface of revolution about an axis (13) with the axis determined such that the axis...
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4738588 |
Film cooling passages with step diffuser
A film cooling passage through the wall of a hollow airfoil for a gas turbine engine has a metering section communicating with the interior of the airfoil for directing a metered amount of coolant...
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4726104 |
Methods for weld repairing hollow, air cooled turbine blades and vanes
A mask particularly useful in the weld repair of air cooled gas turbine blades and vanes contains a mixture of ceramic particles in a liquid carrier. The mask is applied onto the surface of the...
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4726735 |
Film cooling slot with metered flow
The wall of a hollow airfoil for a gas turbine engine includes a film cooling slot therein elongated in the longitudinal direction and having a base within the wall and an outlet at the external...
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4720235 |
Turbine engine with induced pre-swirl at the compressor inlet
A jet flap construction for the compressor of an aircraft gas turbine engine provided with a bleed for bleeding air interstage of the compressor and communicating with the hollowed-out struts in...
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4705455 |
Convergent-divergent film coolant passage
A coolant passage through a wall to be cooled, such as the wall of a hollow airfoil, is shaped and oriented to eject coolant fluid therefrom within the boundary layer of hot gases flowing over the...
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4697985 |
Gas turbine vane
A gas turbine vane generally comprises an outer hollow vane member provided with a plurality of ribs aligned on the inner wall of the outer vane member and an insertion member of vane shape...
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4684322 |
Cooled turbine blade
The blade has an aerofoil body 10 having a leading edge surface 11 which is cooled by air passing through a helical first passage 12 having first portions passing close to said leading edge surface...
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4684323 |
Film cooling passages with curved corners
A film cooling passage through the external wall of a hollow airfoil for a gas turbine engine has a metering section in series flow relation with a diffusing section leading to the passage outlet...
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4676719 |
Film coolant passages for cast hollow airfoils
The external wall of a hollow airfoil for a gas turbine engine has a plurality of longitudinally aligned diffusing coolant passages having their outlets at the outer surface over which a hot gas is...
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4672727 |
Method of fabricating film cooling slot in a hollow airfoil
In the fabrication of a hollow airfoil having a longitudinally extending slot in the airfoil wall with the slot outlet at the external surface of the airfoil, a metering passage extending from the...
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4669957 |
Film coolant passage with swirl diffuser
The wall of a hollow turbine airfoil has a longitudinally extending coolant outlet slot in its external surface which intersects, along its length, a longitudinally extending cylindrical channel...
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4664597 |
Coolant passages with full coverage film cooling slot
The wall of a hollow airfoil has a longitudinally extending slot in its external surface which is intersected, at its base, by a plurality of coolant passages in a longitudinally extending row....
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4653983 |
Cross-flow film cooling passages
Film coolant passages through the wall of a hollow airfoil for a gas turbine engine are oriented to direct coolant fluid therefrom at a substantial acute angle to the downstream direction and at a...
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4650399 |
Rotor blade for a rotary machine
A rotor blade 14 having a spar 138 and shell 134 is disclosed. Various construction details are developed for efficiently transferring rotational loads on the rotor blade to the root section 28 of...
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4616976 |
Cooled vane or blade for a gas turbine engine
A cooled vane or blade for a gas turbine engine has a cooling arrangement for its trailing region which can be accommodated in the relatively thin section available. In this arrangement the...
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4606701 |
Tip structure for a cooled turbine rotor blade
The invention comprises a cooled turbine rotor blade having an improved blade tip structure. A groove is provided in the trailing edge end of the blade tip on those turbine blades whose trailing...
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4604780 |
Method of fabricating a component having internal cooling passages
Methods for manufacturing components having internal flow passages in which an insert composed of a carrier and passage-forming and/or flow controlling elements is sandwiched between or installed...
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4604031 |
Hollow fluid cooled turbine blades
Hollow fluid cooled turbine blades of the multi-pass type used in gas turbine engines have suffered from separation of cooling fluid from longitudinally extending walls defining longitudinally...
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4601638 |
Airfoil trailing edge cooling arrangement
A turbine airfoil for high temperature applications has a spanwise trailing edge slot and a cut back pressure side wall. The pressure side wall has a thickness t at its downstream end. The slot is...
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4595298 |
Temperature detection system for use on film cooled turbine airfoils
Improved temperature detection system for use on film cooled turbine airfoils having a showerhead assembly with a series of parallel slots defined in the leading edge of an airfoil, each slot...
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4589824 |
Rotor blade having a tip cap end closure
An airfoil structure for use in an axial flow turbomachine is disclosed. Various construction details which improve the durability, integrity and the cooling effectiveness of the structure are...
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4587700 |
Method for manufacturing a dual alloy cooled turbine wheel
A dual alloy cooled turbine is manufactured by casting a hollow cylinder of first nickel-base alloy material with high creep resistance to produce directionally oriented grain boundaries. A preform...
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4574451 |
Method for producing an article with a fluid passage
A fluid-cooled article, such as a turbomachinery blading member, is provided with a fluid passage by a method of depositing a first material on a work surface of a mandrel by low pressure plasma...
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4573865 |
Multiple-impingement cooled structure
A multiple-impingement cooled structure, such as for use as a turbine shroud assembly. The structure includes a plurality of baffles which define with an element to be cooled, such as a shroud, a...
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4571937 |
Apparatus for controlling the flow of leakage and cooling air of a rotor of a multi-stage turbine
A muilti-stage turbine having shrouded turbine blades which has a stationary guide grid arranged between the rotor shroud and the turbine casing. By virtue of the construction of the guide grid,...
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4565490 |
Integrated gas/steam nozzle
A first stage gas nozzle for directing a combustion gas stream onto the rotatable blades of a gas turbine contains a plurality of spaced air-foil shaped vanes, each vane containing a steam nozzle...
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4563125 |
Ceramic blades for turbomachines
The blade comprises a metal web (1) surrounded by a refractory ceramic casing (2). The central web (1) is provided with at least one ventilation passage (4) in which flows a small amount of...
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4540339 |
One-piece HPTR blade squealer tip
An improved high pressure turbine rotor blade and tip cap structure therefor is provided which comprises a tip end closure for the blade bonded to the end wall of the blade casting and including a...
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4531889 |
Cooling system utilizing flow resistance devices to distribute liquid coolant to air foil distribution channels
An improved cooling system utilizes flow resistant devices distributing liquid coolant to air foil coolant channels in a bucket of a turbine. A separate flow resistance device associated with each...
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4529357 |
Turbine blades
A hollow turbine blade 10 of aerofoil shaped cross section is provided with walls 18 of varying thicknesses to provide thermal slugging at those regions around the aerofoil profile where the blade...
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4526512 |
Cooling flow control device for turbine blades
A flow control body in the aft end of a hollow core of a turbine vane provides localized increased velocity cooling air flow in a wide portion which is otherwise difficult to cool. The flow control...
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4515523 |
Cooling arrangement for airfoil stator vane trailing edge
A hollow, airfoil shaped stator vane 10 is provided in its trailing edge portion with staggered rows of pin fins 20, 22 and 24 and with longitudinal ribs 26 which provide the required stiffness for...
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4515526 |
Coolable airfoil for a rotary machine
A coolable airfoil 10 for rotary machines is disclosed. The airfoil has a passage 54 extending spanwisely through the leading edge region 26 of the blade. The passage has a plurality of trip strips...
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4512715 |
Method and means for recapturing coolant in a gas turbine
An open circuit liquid cooled gas turbine in which a coolant passes through the turbine blades and is expelled at the tips thereof. The coolant is recaptured by providing ports in the turbine...
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4507051 |
Gas turbine blade with chamber for circulation of cooling fluid and process for its manufacture
A gas turbine blade in which are provided inter alia two chambers for the circulation of cooling fluid, lying in proximity to the leading and trailing edges of the blade respectively, two conduits...
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