摘要:
A blade outer air seal (BOAS) for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a seal body having a radially inner face and a radially outer face that axially extend between a leading edge portion and a trailing edge portion and a seal land that extends from the seal body and includes an inward pointing extension that extends radially inwardly from the radially inner face.
摘要:
Die Erfindung betrifft ein Bürstendichtungssystem (10) zum Abdichten eines Spalts zwischen relativ zueinander bewegbaren Bauteilen einer thermischen Gasturbine. Das Bürstendichtungssystem (10) umfasst ein Bürstendichtungsgehäuse (12), welches zumindest einen Bürstenkopf (14) einer Bürstendichtung (16) aufnimmt, und ein Stützelement (30), mittels welchem ein vom Bürstenkopf (14) der Bürstendichtung (16) abragendes Bürstenpaket (28) gegen Durchbiegung abstützbar ist. Das Stützelement (30) und das Bürstendichtungsgehäuse (12) sind als separate Bauteile ausgebildet. Die Erfindung betrifft weiterhin ein Verfahren zum Herstellen eines solchen Bürstendichtungssystems (10) sowie eine thermische Gasturbine mit einem solchen Bürstendichtungssystem (10).
摘要:
An salisbury axle assembly that includes a differential gearset in a carrier housing. A housing cover is coupled to the carrier housing and is operable for sealingly closing a window on the carrier housing through which there is access to the differential gearset. The housing cover includes a cover member and a seal ring. The cover member includes a mating face and a plurality of raised connection points that are disposed between the carrier housing and the mating face The seal ring is coupled to the mating face and encircles each of the raised connection points. The seal ring further includes at least first and second ring members that are disposed between each of the raised connection points. The pre-attach seal ring sealingly engages the carrier housing and the mating face to a proper compression distance.
摘要:
A sealing assembly (50) for gas turbine engine (10) is provided. At least a spline seal (100), a substantially planar body covers the gap defined between a first turbine nozzle (50) within the engine and a second turbine nozzle circumferentially adjacent the first turbine nozzle. It comprises at least one retainer tab (122) extending outward from the body portion of the at least one spline seal, and is inserted into a slot (222) defined in at least one of the first and second turbine nozzles to facilitate reducing leakage through said gap, such that the at least one retainer tab facilitates retaining the retainer tab within the turbine nozzle slot.
摘要:
A process is disclosed for manufacturing leaf seals (20) having an annular gap formed between two coaxial cylindrical surfaces and sealed by a plurality of individual thin sealing elements (22; 22a, b) which extend across the gap in a direction other than the radial direction, are fixed at their ends associated with one of the cylindrical surfaces and lie loosely with their free ends on the other cylindrical surface. According to this process, the sealing geometry is improved in a simple manner in that, during a first step, the sealing elements (22; 22a, b) are set with their free ends on a coaxial cylindrical surface having a predetermined diameter (D) in such a way that they are subjected to a bending stress, and in a second step the sealing elements (22; 22a, b) subjected to the bending stress are thermally treated until the bending stress is completely eliminated, so as to uniformly orient the free ends of the sealing elements (22; 22a, b).
摘要:
Disclosed herein is a turbomachinery including a labyrinth seal easy to fabricate and adapted to prevent unstable vibration of a rotor. A turbomachinery according to this invention includes a labyrinth seal 2 formed by dividing the seal into segments 7 in a circumferential direction and combining the segments 7 whose comb teeth 5 differ in height. The labyrinth seal 2 preferably includes two kinds of segments 7 whose comb teeth 5 differ in height for each kind of segment, and the segments 7a of the greater comb tooth height are arranged in a certain reference direction on a cross section right-angled to a rotational axis, and in a direction opposite to the reference direction, and the segments 7b of the smaller comb tool height are arranged in a direction right-angled to the reference direction, and in a direction opposite to that right-angled to the reference direction.
摘要:
The invention relates to a method for producing centring elements in a moulded rubber seal that is reinforced with metal. According to said method, metal is cut out of at least one edge area of the metal element and the freed material is shaped by being bent upwards away from the plane of said metal element. Elastomer material is then moulded around said material above the cavity created by the shaping process, in order to produce a pre-definable final contour.