Sundstrand Corporation

William C Trommer

Gary D Nohr

John David Grant

The invention is directed to a deployment apparatus for an extendable ram air turbine of an aircraft. The ram air turbine is movable from a stowed inoperable position within the aircraft to a deployed and extended operable position externally of and in an airstream of the aircraft. The deployment apparatus includes an ejection member secured at one end to the aircraft and pivotally coupled to a non-extendable portion of a strut assembly. The non-extendable strut portion is pivotally secured at one end to the aircraft and receives at its other end in a telescoping manner one end of an extendable strut portion which has at its other end an air turbine driven power unit. An extendable strut portion control arrangement is responsive to a preset strut assembly deployed position and the presence of a predetermined power output level provided by the air turbine driven power unit to thereby ensure that the extendable strut and air turbine are extended only upon deployment of the strut assembly and activation of the air driven power unit.

Deployment mechanism for RAM air turbine

Turbine nozzle phasing device for controlling a flow of gasses to a plurality of nozzles in response to a control signal. The turbine nozzle phasing device includes a housing having a lower portion which includes a first plenum for receiving the flow of hot gasses and an upper portion which includes a second plenum integral with the first plenum, a detachable partition for separating the first plenum from the second plenum and a first nozzle which communicates with the first plenum. Hot gasses flowing into the first plenum flows through the first nozzle. A set of second nozzles is provided which communicates with the second plenum. Partition detaching apparatus is also included for detaching the detachable partition in response to the control signal to permit a portion of the hot gasses flowing into the first plenum to flow into the second plenum and through the set of second nozzles.

Turbine nozzle phasing device

A lubricating system for an overrunning sprag clutch assembly (1) interposed between a rotatable drive (18) and a driven member (10). A lubricating fluid is supplied to the clutch assembly (1) and a lubricating dam (11) is formed on respective axial sides of the clutch assembly (1) thereby ensuring an adequate lubrication of the clutch assembly (1) during operative and non-operative conditions thereof.

Lubrication system for overrunning clutches

Difficulties in interrupting a mechanical power transmission path may be minimized in a manual connect-disconnect operator which includes a coupling shaft (38) and a translatable carrier (28) journalling the coupling shaft (38) for rotation about an axis and mounting the coupling shaft (38) for axial movement along the axis between connect and disconnect positions. A yoke (52) is mounted on a pivot (54) and is connected to the carrier (28) for translating the carrier (28) to move the coupling shaft (38) upon pivotal movement of the yoke (52). A manual actuator (78) is mounted for reciprocating movement and a detent mechanism (92), (94), (100), (102), (104), (106), (108) is operable to maintain the carrier (28) in either of the positions.

Manual connect-disconnect coupling

A unidirectional no-back device having an input shaft and an output shaft and grounded releasable brake structure for holding the output shaft against rotation. A drive train between the input and output shafts has first and second ball and ramp structures. The first ball and ramp structure is operable upon rotation of the input shaft in either direction by a prime mover to release the brake structure and enable driving of the output shaft by the input shaft. The second ball and ramp structure is responsive to torque flow from rotation of the output shaft in one direction to release the brake structure to permit backdriving of the input shaft and prime mover from the output shaft and is inoperative in response to torque flowing in an opposite direction of rotation of the output shaft so as to not release the brake structure and thus preclude rotation of the output shaft.

Unidirectional no-back device

A rotatable rectifier assembly for use in a brushless generator. A housing 40 receives a stack of heat sinks 56-68 which are both thermally and electrically conductive and which sandwich diode wafers 78 making up a multiple phase, full wave rectifier. The requisite electrical connections are made by electrical connectors 102,110 slidably extending through the heat sinks and electrically connected to desired ones of the heat sinks and electrically isolated from other ones of the heat sinks.

Rotating rectifier assembly

A rotary rectifier assembly including a shaft adapted to be rotated. Three equally angularly spaced phase conductors are disposed about the shaft and insulated with respect to each other and with respect to the shaft and each has opposed, axially opening recesses. Diode wafers are received in each of the recesses and each recess further receives an electrically conductive load shoe. A pair of end conductors sandwich the phase conductors, wafers and load shoes and each end conductor has three equally angularly spaced curved recesses for matingly receiving the curved portion of the corresponding ones of the load shoes. A single biasing device is employed to bias one end conductor towards the other to thereby establish good electrical contact between the various components while occupying a minimum of space and minimizing the overall weight of the assembly.

Growing community of inventors

Rockford, IL, United States of America

William C Trommer