Abstract:
A hydrokinetic torque converter assembly for use with a geared transmission in a vehicle powertrain. The transmission includes a gear pump with a pump driving member and the torque converter assembly includes an impeller shaft drivably engageable with the pump driving member. The impeller shaft and the pump driving member are configured to effect full driving engagement of the impeller shaft with the pump driving member as the torque converter is assembled with the geared transmission.
Abstract:
A torque converter stator for improved fluid coupling and acceleration is provided. The stator includes a plurality of circumferential long and short blades for increasing torque to an automatic transmission by employing reaction force produced when a flow transmission oil within the torque converter impinges an exterior surface of the blades. The stator utilizes the plurality of circumferential short blades for increasing torque during times a vehicle starting or accelerating and for permitting an obstructed fluid coupling in the turbine and impeller are a coupling point.
Abstract:
A hydrodynamic torque converter which has at least a hydrodynamic circuit including at least one pump wheel and one turbine wheel, wherein each of these wheels is provided with an outer shell to accept a set of vanes which form flow chambers, the inner edges of the vanes away from the outer shell being connected to an inner shell, which acts as part of an internal torus. At least the vanes of the turbine wheel have connecting elements both on the inner edges and on the outer edges, which connecting elements pass through openings in the shells to fasten the vanes to the shells, being provided for this purpose with a predetermined minimum overhang with respect to the edge of the associated vane, this minimum overhang making it possible for the connecting elements to be plastically deformed in such a way that they can grip the rear surfaces of the shells, i.e., the surfaces facing away from the vanes, and thus fasten the vanes to the shells. The connecting elements are designed in such a way that, without detriment to the predetermined ability to withstand the pressure produced by the hydrodynamic circuit, it is possible to introduce and to fasten the vanes easily, even in the case of rotors with extremely small radial dimensions and thus with very sharply curved outer and inner shells for the vanes.
Abstract:
There is provided a power transmission device that causes no vibration in a rotation direction and collision noise even if a shock absorbing rubber is permanently deformed in a compression direction. Specifically, even if compression forces repeatedly applied to a shock absorbing rubber 12 causes the shock absorbing rubber 12 to be permanently deformed in a compression direction, an elastic member 16 placed between the shock absorbing rubber 12 and each protrusion 11a presses the shock absorbing rubber 12 circumferentially of a pulley 10 and a transmission ring 11, and therefore, a shock of an abrupt rotation number change caused by rattling between the shock absorbing rubber 12 and the transmission ring 11 can be absorbed by the elastic member 16, and vibration in a rotation direction and collision noise can be prevented.
Abstract:
In one embodiment, a torque converter includes a two-piece cover, an impeller, a turbine, and a lockup clutch. The two-piece cover includes a base plate that is configured for attachment to a drive member. The base plate has a plurality of lugs around the periphery thereof, and at least some of the lugs have straight flanks. The two-piece cover also includes a cylindrical wall piece that is fixed to the base plate. The impeller is fixed to the cylindrical wall piece. The turbine is rotationally mounted between the impeller and the cover and is configured for attachment to a driven member. The lockup clutch is configured to lock the impeller and cover to the turbine when a fluid pressure applied to the lockup clutch increases above a torque converter lockup pressure.
Abstract:
A device for reducing engine exhaust noise in an aircraft engine includes a number of oscillating jets which direct an oscillating flow into the engine exhaust. The oscillating jets are connected via channels to a turbomachinery source of high pressure gas, where the source is located upstream from the engine exhaust portion. The high pressure gas passes through the oscillating jets, which have a nozzle with a triangular shaped orifice and an exhaust pipe, and exits the oscillating jets having a oscillating flow. The oscillating flow mixes with the engine exhaust thus reducing the noise created by the engine exhaust.
Abstract:
An automatic transmission includes a stator support shaft having an internal axial bore for receiving an input shaft, a forward engagement portion for engaging a stator of a torque converter, and a central engagement portion for engaging a stator support and transferring to the stator support substantially all of a torque load imposed on the stator support shaft by the stator. A rearward portion of the stator support shaft is positioned rearward of the central engagement portion. An oil seal groove is positioned in the internal axial bore of the rearward portion to receive an oil seal to seal between the stator support shaft and the input shaft.
Abstract:
A method of manufacturing a torque converter fluid coupling member includes forming a plurality of hollow tubes having first and second ends and connecting the plurality of tubes together side-by-side in an annular array. Fluid may be carried through each tube from the first end to the second end, thereby forming the fluid coupling member. The fluid coupling member may be a turbine or a pump of a torque converter.
Abstract:
A viscous damper for driving accessories by a crankshaft though a viscous coupler of the viscous damper. The rotational driving force of the crankshaft is transmitted to the viscous damper hub through the meshing of a large diameter gear and a driven gear, the viscous damper forming a unit with the driven gear. The rotational driving force is further transmitted to a viscous damper housing through the hub and the viscous coupling means, i.e., the viscous coupling means comprising a number of plates which are movable relative to each other in a space filled with silicon oil. The rotational driving force, which is transmitted to the housing and is dampened in torque changes by the function of the coupling means, is transmitted to a rotor shaft of an alternator to smoothly rotate the alternator rotor. A smooth performance in driving the accessories is ensured by the viscous damper having the viscous coupling.
Abstract:
An automatic transmission includes a stator support shaft having an internal axial bore for receiving an input shaft, a forward engagement portion for engaging a stator of a torque converter, and a central engagement portion for engaging a stator support and transferring to the stator support substantially all of a torque load imposed on the stator support shaft by the stator. A rearward portion of the stator support shaft is positioned rearward of the central engagement portion. An oil seal groove is positioned in the internal axial bore of the rearward portion to receive an oil seal to seal between the stator support shaft and the input shaft.