IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0602066
(1984-04-19)
|
발명자
/ 주소 |
- Wassell Mark E. (Bloomfield CT) Mosimann John G. (Ellington CT)
|
출원인 / 주소 |
- Terry Corporation (Windsor CT 02)
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
4 |
초록
▼
The Assembly has a submerged root, turbine-wheel-blading configuration, and utilizes circumferentially oriented, buried, friction damping wires, and continuous, overlapping, tip shrouds to minimize vibratory response. The wires, in the presence of blade vibration, simultaneously rub on both the blad
The Assembly has a submerged root, turbine-wheel-blading configuration, and utilizes circumferentially oriented, buried, friction damping wires, and continuous, overlapping, tip shrouds to minimize vibratory response. The wires, in the presence of blade vibration, simultaneously rub on both the blades and surfaces of a recess in the wheel in which the blade roots are fixed. The continuous tip shrouding provides additional damping through shroud-to-shroud interface rubbing. The assembly has a stack of identical blades, obviating any need for relatively weak locking blades or pieces. The method defines the steps of forming a peripheral recess in a wheel, in which to secure root ends of blades, and setting the damping wires (or wire) therein prior to installing the blade root ends, and uniformly spacing-apart the blades after securing the same to the wheel.
대표청구항
▼
A bladed rotor assembly, for a turbine or the like, comprising: a wheel; said wheel having a periphery with a trough formed therein; and a plurality of blades, each thereof having a root end; wherein said trough has spaced-apart, confronting, wall surfaces; said blades, of said plurality thereof, ea
A bladed rotor assembly, for a turbine or the like, comprising: a wheel; said wheel having a periphery with a trough formed therein; and a plurality of blades, each thereof having a root end; wherein said trough has spaced-apart, confronting, wall surfaces; said blades, of said plurality thereof, each have surfaces on opposite sides thereof interposed between, and engaged with, said confronting, wall surfaces; at least one pair of said engaged side and wall surfaces has means cooperative for retaining said blades in said trough; and said trough has means, at a given location on said periphery, defining an access, for accommodating selective insertion and removal of said root ends therethrough, for entry of said root ends into, and withdrawal of said root ends from, said trough; and further including single locking means, in said trough, and obstructing said access, for preventing movement of said root ends through said access; and packers only of one-piece construction, interposed between said blades of said plurality thereof, for uniformly setting apart, and for closing off said trough between, said blades; wherein said wall surfaces and said packers have mutually complementary means which cooperatively (a) accommodate a slidable engagement of said packers with said wall surfaces, in an attitude substantially perpendicular to said wall surfaces in which said packers bridge across only an uppermost portion of said trough, and (b) retain said packers against disengagement from said wall surfaces; all blades of said plurality thereof are identical; and said locking means is integrally coupled to one of said packers.
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