초록 ▼

A seal assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis wherein the casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apa

A seal assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis wherein the casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apart from the rotor wherein the casing comprises an inner circumferential channel generally coaxially aligned with the rotor. The seal assembly comprises a plurality of seal segments disposable in a circumferential array in the channel so as to be movable between radially inward and radially outward positions. In addition, the seal assembly comprises a plurality of displacement apparatuses comprising at least one fluid inlet and configured for urging apart the seal segments upon introduction of a fluid medium in the fluid inlet. Each of the seal segments comprises an end having at least one of the displacement apparatuses circumferentially disposed thereon.

대표청구항 ▼

A seal assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis wherein the casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apa

A seal assembly is provided for a rotary machine wherein the rotary machine comprises a rotor and a casing. The rotor comprises a generally longitudinally-extending axis wherein the casing is generally coaxially aligned with the axis. The casing circumferentially surrounds and is radially spaced apart from the rotor wherein the casing comprises an inner circumferential channel generally coaxially aligned with the rotor. The seal assembly comprises a plurality of seal segments disposable in a circumferential array in the channel so as to be movable between radially inward and radially outward positions. In addition, the seal assembly comprises a plurality of displacement apparatuses comprising at least one fluid inlet and configured for urging apart the seal segments upon introduction of a fluid medium in the fluid inlet. Each of the seal segments comprises an end having at least one of the displacement apparatuses circumferentially disposed thereon. ced apart with which each latching such means further comprising: (i) a second collar-like element which is rotatably mounted on the second shaft being located opposing one of the targets; (ii) a spanning lever tied at one end to its respective second collar-like element and bridging the lateral gap between the first and second shafts, so as to make for latching, but interruptible, contact with the opposing depending arm of the target; and (iii) a second plurality of torsional-biasing means adapted to rotate the associated spanning lever counterclockwise to that rotation of the depending arm; (f) a single target plate adapted to serve as both a deflectable target and as a target array reset means for any of the other targets while latched in the depressed mode, said target plate also being provided with a rotatable and a depending arm thereon, having a somewhat greater length than the depending arm of the other targets, so as to make transient contact with the spanning lever of an opposing latching means, whereupon missile deflection of the single target plate, with rotation of its associated depending arm, such arm rotates both the opposing spanning lever and its associated second collar-like element to deflect downwardly, along with the other spanning levers, thus interrupting the latched position of the depending arms, so that all the targets rotate from their depressed mode back to the upright mode, and to the target array orientation for renewed usage. 2. The target apparatus of claim 1 wherein each of the target latching means are a detent element affixed to a free outer end of the spanning lever, which element is disposed to engage and retain an arrested depending arm in the target depressed mode until the resetting target plate is activated. 3. The target apparatus of claim 1 wherein the resetting target plate is provided with a fixed bead on its depending lower end, which bead serves to deflect the associated spanning lever a somewhat greater distance than are the deflections of the other spanning levers, with such transient gap acting to release all of the other target latching means from the depressed mode. 4. The target apparatus of claim 1 wherein the first set of torsional biasing means mounted along the first shaft are each a helical spring that biases its associated depending lever arm in a first arcuate direction that maintains the target in an upright mode until projectile impact rotates same to the depressed mode. 5. The target apparatus of claim 1 wherein the second set of torsional bias means mounted along the second shaft are each a helical spring that biases its associated spanning lever in an arcuate direction counter onto the rotational bias imposed by the first torsional bias means maintaining the free end of the spanning lever in an upward direction. 6. The target apparatus of claim 1 wherein the deflection resisting force of each target may be varied for projectile momentum by adjusting the torsional tension being provided by the first plurality of torsional means upon the upright mode of the associated target plate. 7. The target apparatus of claim 1 wherein an arrest element is provided along the upper perimeter of the second shaft proximal to each spanning lever and which element functions to limit the rotation of each spanning lever, while being subject to the second set of torsional biasing means. 8. The target apparatus of claim 1 wherein the bias of the first plurality is counterclockwise while the bias of the second set of torsional bias means is an arcuate direction counter to that of the first set of torsional biasing means. 9. The target apparatus of claim 1 wherein the first plurality of torsional biasing means are provided with means to vary the rotational bias being imposed upon each of the targets to accommodate the variable momentum of impacting projectiles. 10. A target apparatus including a generally horizontal rigid frame for operatively supporting a linear array of target