Abstract: An adjustable spacer (20) is located in a unison ring (16) disposed about a gas turbine engine case (18). The spacer (20) includes a pad bolt (44) having a flattened surface (52) for contacting the case (18). The pad bolt (44) is adjusted radially by a threaded cylinder (28) and adjusting nut (36). The assembly is locked in place by a locknut (54) which includes a frangible link (72) for separating a headed portion (70) from a threaded portion (68).

Abstract: A flow fence for a turbo fan jet engine, as taught by Stein et al. in U.S. Pat. No. 3,841,790, is modified by the provision of serrations about its internal circumference. Thus, when the modified flow fence is inserted into or removed from the flow field, a more gradual transition occurs in the flow thereby improving surge margins.

Abstract: A turbine casing, a shroud and a gas outlet cover together define a closed doughnut-shaped space. A nozzle driving ring inserted in the space is slidably clamped by the turbine casing and the gas outlet cover. Nozzle shafts extending from nozzle blades are connected through links to the nozzle driving ring. The nozzle driving ring can be driven from outside the space. The nozzle driving ring for simultaneously varying the angle of the nozzle blades is restrained in the axial direction effectively with a high degree of accuracy.

Abstract: Turbocharger acceleration is enhanced by a single element, multi-vane nozzle ring rotatably mounted to the turbine wheel or housing and optimizing exhaust gas flow direction into the turbine wheel at engine idle conditions and other operating conditions, with means to control rotation and speed of the nozzle ring to provide optimum acceleration and cruise conditions by the use of a rotating turbine nozzle ring.

Abstract: Disclosed are apparatuses for controlling the flow of fluids which comprise a plurality of identical nozzle means arranged in an axially symmetrical configuration on a stator means and defining a plurality of identical flow channels or passageways. Each nozzle means comprises a fixed-spacer member and an adjustable-segment member. The fixed-spacer members are sealably fixed to the stator and mandate that the fluid flows through the flow channels. The adjustable-segment members are slideably connected to the fixed-spacer members in an essentially sealing relationship. Adjustable-segment members are operable to move only in straight-line direction and are not permitted to move pivotally. Jar-free movement of the adjustable members is possible regardless of flow or pressure of fluid. An essentially constant angle of discharge is possible for all adjustable positions of the nozzle means thereby enabling a high operating efficiency of the apparatus over a wide range of operating conditions.

Abstract: A fluid flow control system for use with turbines, such as the Tesla-type turbine, where the power fluid contains large amounts of impurities and where it is desired to closely modulate the flow of the fluid to the turbine. The fluid flow channels to the turbine wheel are defined by a plurality of cooperating fluid flow confining blades which may be adjusted to controllably vary the cross-sectional area of the fluid flow channels. The convergent inlet portions and substantially parallel outlet portions of the fluid flow channels as defined by the blades provide a geometry which is highly conducive to the dampening of upstream turbulence and to the injection toward the turbine wheel of an essentially laminar jet. The configuration of the blades and the manner of their adjustment is such that the angular convergence of the inlet portions and the parallelism of the outlet portions of the channels does not change as the blades are adjusted to vary the cross-sectional area of the channels.