초록 ▼

A transition piece seal assembly includes a transition piece seal support having a first flange for supporting a transition piece seal, and a second flange adapted for mounting in an adjacent nozzle; and at least one spring seal element having a mounting flange adapted to engage the second flange of

A transition piece seal assembly includes a transition piece seal support having a first flange for supporting a transition piece seal, and a second flange adapted for mounting in an adjacent nozzle; and at least one spring seal element having a mounting flange adapted to engage the second flange of the transition piece seal support, and a flex portion having a free edge adapted to engage a forward face of the nozzle.

대표청구항 ▼

A transition piece seal assembly includes a transition piece seal support having a first flange for supporting a transition piece seal, and a second flange adapted for mounting in an adjacent nozzle; and at least one spring seal element having a mounting flange adapted to engage the second flange of

A transition piece seal assembly includes a transition piece seal support having a first flange for supporting a transition piece seal, and a second flange adapted for mounting in an adjacent nozzle; and at least one spring seal element having a mounting flange adapted to engage the second flange of the transition piece seal support, and a flex portion having a free edge adapted to engage a forward face of the nozzle. o close the throttle portions belonging to the first group; the variable-throttle valve cited in claim 2 is connected in series with the throttle portions belonging to the second group so that ratio of hydraulic fluid flow rate controlled by the throttle portions belonging to the first group to hydraulic fluid flow rate controlled by the throttle portions belonging to the second group can be varied; and pulses, whose number corresponds to vehicle driving conditions, are sent from the control device to the motor. 4. The positioning mechanism according to any one of claims 1 to 3 wherein: the drive shaft is constituted of a cylindrical main body and a metal insertion portion, whose cross-section perpendicular to its axis is non-circular and has a the main body is press-fitted in the center hole of the insertion portion; the screw member has a receiving portion that extends in a double forked shape in its axial direction; the insertion portion is arranged between two opposing inner surfaces of the receiving portion; and a rubber coating material is provided as the elastic member, so as to cover at least the areas on the outer surface of the insertion portion, which come to contact with the inner surfaces of the receiving portion. 5. A positioning mechanism for effecting linear movement: a movable member movably supported for linear movement in a support structure along a path to an stop end at which movement is mechanically stopped; a rotatable member threadably engaging said movable member such that rotation of said rotatable member effect linear movement of said movable member, said rotatable member having an first engagement portion distal from said movable member; a rotation arresting structure for stopping rotation of said movable member in conjunction with rotation of said rotatable member; a stepper motor having a drive shaft which has a second engagement portion engaging said first engagement portion of said rotatable member to permit rotation of said rotatable member by said stepper motor so that said movable member is moved along said path to said stop end whereat said stepper motor is further actuated to effect further movement despite the mechanical stopping of the movable member to ensure origin positioning; and an elastic member interposed between said first and second engagement portions to absorb rotational shocks caused by said stepper motor being further actuated to effect further movement despite the mechanical stopping of the movable member to ensure origin positioning. 6. A positioning mechanism for effecting linear movement according to claim 5 wherein: said first and second engagement portions have opposing engagement surfaces extending in an axial direction of said drive shaft for transmitting rotational force; and said elastic member includes a spring member having a wave configuration disposed between said opposing engagement surfaces to effect elastic interaction therebetween by elastic flattening of the wave configuration, said wave configuration having crests and valleys extending in a wave front direction which is orthogonal with respect to said axial direction of said drive shaft, and said wave configuration flaring outward from an axis of said drive shaft at an edge thereof for reception of one of said first and second engagement portions. 7. A positioning mechanism for effecting linear movement according to claim 5 wherein: said first and second engagement portions have opposing engagement surfaces extending in an axial direction of said drive shaft for transmitting rotational force; and said elastic member includes an elastic resin disposed between said opposing engagement surfaces to effect elastic interaction therebetween by elastic compression. 8. A positioning mechanism for effecting linear movement according to claim 7 wherein said elastic resin is adhered to one of said first and second engagement portions as a coating. 9. A positioning mechanism for effecting