초록 ▼

Apparatus associated with a component part of the drive system of a turbine assembly reduces the power applied to its drive rotor in a direct and substantially instantaneous response to the speed of its rotation rising to a predetermined level. A turbine starter for an engine embodying this apparatu

Apparatus associated with a component part of the drive system of a turbine assembly reduces the power applied to its drive rotor in a direct and substantially instantaneous response to the speed of its rotation rising to a predetermined level. A turbine starter for an engine embodying this apparatus comprises a housing for its rotor and the drive system of which it forms a part, a flow path for a gaseous fluid, delivered from a source, to power the rotor and a control device in connection with the drive system a component part of which moves radially thereof and, when its speed of rotation rises to a predetermined level, triggers a substantially simultaneous restriction of the flow path through which fluid can be applied to power the turbine rotor, thereby to produce a resulting reduction of the speed of rotation of the turbine drive system. If under such conditions the starter is engaged with a related engine, it will automatically disengage. The apparatus inherently and automatically prevents the occurrence of a speed of rotation of the turbine drive system which might induce self-destruction and explosive fragmentation of its housing and/or its component parts. The construction and arrangement of the control apparatus is such that the components thereof automatically reset once the speed of rotation of the starter drive system is interrupted or falls to a safe level.

대표청구항 ▼

A turbine assembly including a housing, a rotor within said housing having a drive system in connection therewith and forming a part thereof, means defining a flow path for the delivery of gaseous fluid under pressure and the application thereof to power said rotor characterized by valve means, cont

A turbine assembly including a housing, a rotor within said housing having a drive system in connection therewith and forming a part thereof, means defining a flow path for the delivery of gaseous fluid under pressure and the application thereof to power said rotor characterized by valve means, control means in connection with a component part of said drive system, said control means including an element having an orientation which is substantially radial to said component part, means constructed and arranged to normally hold said element in a relatively retracted position with reference to said part and to provide for its substantially radial movement outwardly of said component part in a substantially instantaneous response to the speed of rotation of said rotor exceeding a predetermined limit, to condition said valve means to move across and to obstruct at least a portion of said flow path sufficiently to diminish the application of said fluid to power said rotor and produce an immediate reduction of its speed of rotation and that of its drive system and correspondingly that of said component part thereof without interrupting the application of power to said rotor.