Abstract: The invention relates to a hydrodynamic coupling having a primary blade wheel and a secondary blade wheel. The primary wheel and the secondary wheel together form a working chamber that can be filled with a working medium and are mounted in such a way that they can rotate in relation to each other. A bearing is inserted, at least indirectly, between the primary impeller and the secondary impeller, said bearing absorbing the radial forces and/or axial forces acting between the blade wheels. The inventive hydrodynamic coupling is characterized in that the bearing is constructed as a sliding bearing, a film of bearing fluid subjected to hydrostatic pressure being formed between the bearing components moving in relation to each other during the operation of the hydrodynamic coupling, and the pressure of the bearing fluid is dependent on the pressure of the working medium built up in the working chamber.

Abstract: A travel jolt minimizing assembly for use in association with an articulated loader steering environment having a orbitrol pump, and a flow amplifier coupled to the orbitrol pump through a left orbitrol signal and a right orbitrol signal, and a steering cylinder coupled to the flow amplifier. The travel jolt minimizing assembly includes a system for temporarily diverting the left orbitrol signal within a predetermined degrees of a full articulation in a left direction and a system for temporarily diverting the right orbitrol signal within a predetermined degrees of a full articulation in a right direction. The invention further includes a response cushion assembly which minimizes jolts which occur upon a rapid change in direction.

Abstract: A torque converter in which the output height of the output openings of the stator is higher than the input height of the input openings, producing a stator with a diffuser effect.

Abstract: The invention relates to an automotive drive train having an internal combustion engine (266) that is configured as a three-cylinder engine and a hydrodynamic torque converter device. Said device has a torsional vibration damper consisting of two energy accumulating devices (272, 276) and a converter lockup clutch (268). The turbine wheel (274) is interposed between the two energy accumulating devices (272, 276). According to the invention, ranges of values or ratios for the following parameters are claimed: maximum engine torque Mmot,max (266), spring rate c1 (272), mass moment of inertia J1 (274), spring rate c2 (276), mass moment of inertia J2 (278) and spring rate cGEW of the transmission input shaft (280). The mass moment of inertia J1 should be high between the two energy accumulating devices (272, 276) and masses should be as little as possible between the torsional vibration damper and the transmission input shaft. FIG.

Abstract: The invention relates to an automotive drive train having an internal combustion engine that is configured as an eight cylinder engine and a hydrodynamic torque converter device. The device has torsional vibration damper consisting of two energy accumulating devices and a converter lockup clutch. The turbine wheel is interposed between the two energy accumulating devices. The mass moment of inertia J1 should be high between the two energy accumulating devices and masses should be as little as possible between the torsional vibration damper and the transmission input shaft.

Abstract: The torsional vibration damper includes a drive-side damping element arranged nonrotatably with respect to a flywheel mass element fastened to the drive, and a takeoff-side damping element, which is centered and axially positioned by the flywheel mass element and which is in functional connection with a takeoff. The drive-side damping element is connected to the takeoff-side damping element via elastic elements.

Abstract: A torque converter 1 with a lock-up device 4 is provided to improve damping performance while suppressing an increase in the axial dimension. A torus 3 of the torque converter 1 includes an impeller 10, a turbine 11 and stator 12. The torus 3 has a shape such that a radial direction dimension is longer than an axial dimension thereof, and a longitudinal axis t1 is inclined away from a straight line P perpendicular to a rotational axis such that a radially outer portion of the longitudinal axis t1 is closer toward the engine than a radially inner portion thereof. The torsion springs 52 are located adjacent on the front cover side of a radially inner portion of the torus 3.

Abstract: A torque converter with a rotary oscillation damper has two or more rotary damper components that are rotatable in relation to each other. A friction-reducing component is arranged between the rotary damper components.

Abstract: A hydrokinetic torque converter, particularly for use in the power train of a motor vehicle, has a housing which can receive torque from the prime mover of the vehicle and drives a pump adapted to rotate a turbine on the input shaft of the change-speed transmission. The turbine can also receive torque from the housing by way of a bypass clutch and a damper borne by a hub which is mounted on the input shaft. A feature of the invention resides in the simplicity of design and low cost of several component parts of the torque converter and in a novel mode of assembling the component parts.

Abstract: A torque converter which has a pump wheel, a turbine wheel, and a stator, which form a hydrodynamic circuit, and also a torsional vibration damper with a primary and a secondary damper element. The primary and the secondary damper element are connected to each other in a rotationally elastic manner by at least one set of springs. The turbine wheel has a turbine wheel shell and is supported rotatably with respect to a turbine wheel hub in a first bearing, which provides axial and radial support. The secondary damper element is mounted nonrotatably on the turbine wheel hub. The turbine wheel acts by way of an intermediate element on the primary damper element. The stator is mounted on a stator hub, which is supported by an axially operative second bearing on a turbine wheel base, which is connected to the turbine wheel shell. The first bearing is located radially outside the second bearing.

Abstract: In order to damp the vibrations in a hydraulic branch of a power distribution transmission, the hydraulic pump (1) and the hydraulic motor (3) which are interconnected are non-rotatably but elastically maintained in the transmission housing in the area of their connecting point by damping elements (5). The input shaft (11) of the hydraulic pump (1) and the output shaft (18) of the hydraulic motor (3) are connected with shafts (12, 17) which on their engagements have crowned teeth or spiral gearings and are floatingly mounted. It is hereby obtained that the hydraulic branch is easy to mount, can freely move and the vibrations it produces are not transmitted to the transmission housing (7) or to the toothed wheels (13, 16) of the mechanical distribution branch.

Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.

Abstract: In an assembly including a diesel engine, a fluid coupling connected to the flywheel of the diesel engine, a comminuting machine and a conveyor for feeding the comminuting machine, a fluid coupling module is common to various output power train assemblies. Slip speed of the fluid coupling between impeller input and runner output shafts is measured, and modulates or regulates the process feed rate of the conveyer. An electrically actuated control valve acts as an oil flow diverter valve directing oil into the fluid coupling impeller when a signal to engage the coupling is given, and in response to a signal from an over-temperature sensor when the temperature of circuit oil leaving the element exceeds a preset set point value, diverts the oil to a reservoir, thereby permitting the impeller and runner cavity to evacuate, which separates the engine from the load.

Abstract: A torque fluctuation absorber for a hybrid vehicle includes a first rotational member connected with an internal combustion engine, a second rotational member connected with a generator, a first torsion member located between the first rotational member and the second rotational member, and having a torsional rigidity established to absorb an operation-related fluctuation torque of the generator, and a second torsion member located between the first rotational member and the second rotational member, and having a torsional rigidity greater than that of the first torsion member.

Abstract: The rotary output element of a hydrokinetic torque converter can receive torque with limited play from the turbine or directly from the housing by way of a damper which operates in series with a lockup clutch. The lockup clutch can be engaged to transmit torque from the housing of the torque converter to the damper and the latter then transmits torque to the output element.

Abstract: Described is a viscous damper for a hydraulic power transmission with a lockup clutch. The viscous damper is composed of at least one blade mounted on at least one element of the hydraulic power transmission so that said at least one blade is located in an oil filled in said hydraulic power transmission and controls occurrence of self-excited vibrations. Preferably, plural blades are mounted on a wall of at least one of mutually opposing two elements of the hydraulic transmission, said wall of said at least one element being locate opposite a wall of the other element.

Abstract: A fluid coupling (1) with a sealed casing (2) including two mutually communicating chambers (21, 23) and traversed by a driven shaft (10) connected to a user, one of said chambers (21) containing a pair of rotors (15, 17) provided with radial blades (16, 18), a driving first rotor (17) being operationally connected to a driving shaft and the driven second rotor (15) being associated with the driven shaft (10), the other chamber (23) acting as a delay chamber, the casing (2) containing a fluid arranged to transfer motion from the driving rotor (17) to the driven rotor (15). Within the sealed casing (2) there is provided at least one further chamber or reservoir (22) connected to said two chambers (21, 23) such as to feed the fluid contained in it to the delay chamber (23) with a delay subsequent to the starting of the motor, said fluid being transferred with a further delay to the working chamber (21) containing the rotors (15, 17).

Abstract: A torque transmission device for an automatic power transmission employs a viscous coupling interposed between a crankshaft and a converter cover of a torque converter. The viscous coupling is effective for damping torsional vibration input from the camshaft by viscosity thereof.

Abstract: A lock-up torque converter for an automatic transmission includes a pump fixedly connected to a crankshaft of the internal combustion engine and a converter cover connected to a converter output shaft during a lock-up condition. A shock absorbing member connects the pump and the converter cover to be elastic in the rotating direction of the converter output shaft. Accordingly, both fluctuations of the engine speed and of the output shaft speed are absorbed by the pump and the converter cover, respectively and therefore the torsional vibrations and the noises generated in the passenger compartment are largely suppressed.

Abstract: A double acting hydraulic shock absorber is connected across first and second fluid conduits that are connected to opposite ends of hydraulic steering motors of an articulated vehicle and to a control unit that is controlled by a steering wheel to control the direction of movement of the vehicle. A pump provides pressurized fluid to the control unit. The shock absorber has a response pressure of a predetermined value and includes a piston in a tubular housing intermediate portion. A first shank is joined to the piston to abut against a first closure that closes one end of the housing to limit movement from the piston's datum position and a second shank joined to the piston to abut against a second closure that closes the opposite end of the housing to limit movement from the datum position toward the second closure.

Abstract: In a damping flywheel which is associated with a fluid coupling device, the casing of the fluid coupling device is mounted in series with the damping flywheel, preferably through a resilient elment which forms part of an arrangement which allows variation to take place in the clamping torque exerted by friction means which form part of a torque limiter.

Abstract: A torque converter provided with a vibration damper includes an input member, an pump connected to the input member, a turbine located between the pump and the input member, a lock-up clutch disk frictionally engagable with the input member, an output shaft connected to the turbine and the lock-up clutch disk, and a damper mechanism disposed between the radially outer portions of the turbine and the lock-up clutch disk. The damper mechanism includes a damper weight rotatably and concentrically arranged with respect to the input member and the output shaft, a centrifugal clutch including an output member, a centrifugal weight adapted to be frictionally engaged with the output member by a centrifugal force and a weight support fixed to the turbine and radially movably supporting the centrifugal weight, and a damper spring circumferentially connecting the output member of the centrifugal clutch to the damper weight.

Abstract: A control system for an actuator used to position a control surface on an aircraft such as a horizontal stabilizer, including a source of pressurized fluid, a pressure control for establishing a predetermined pressure level that is substantially one-half source pressure, a blocker valve and at least one direction control valve for controlling the application of fluid pressures to the actuator. During idle periods, the blocker valve supplies substantially equal control pressures to the actuator so that the control system remains pressurized to substantially one-half source pressure. When the actuator is being energized, the direction control valve determines the direction of actuation and the blocker valve controls the fluid flow rate to and from the actuator to maintain a constant actuation rate regardless of load.

Abstract: A torque converter includes a coaxially mounted pump impeller, turbine, and stator, each of which includes an outer shell, an inner shell, and vanes extending between the outer shell and the inner shell having edges which define an inlet and outlet. The pump impeller outlet is proximate to the turbine inlet, the turbine outlet is proximate to the stator inlet, and the stator outlet is proximate to the pump impeller inlet. The outer and inner shells cooperate to define outer and inner toroidal surfaces, which together define a hollow toroidal hydraulic fluid circulation path. The ratio between the axial extent and the radical extent of a section of the outer toroidal surface is less than approximately 0.9.

Abstract: A hydraulic coupling is provided which has a primary blade wheel and a secondary blade wheel confining an operating space, said primary wheel having a first delay chamber connected by channels with the operating space located relatively close to the coupling axis and a second delay chamber, predominantly located further away from the coupling axis than the radially outer limitation of the operating space, the second delay chamber being connected with the operating space by large diameter ports, preferably by the radially outer annular gap between the blade wheels.

Abstract: In a torsional damper device in particular for equipping hydraulic coupling devices, in particular for automotive vehicles, two flanges mesh through meshing means with clearance with a same flange. There is at least one area of axial interpenetration between these flanges.

Abstract: A transmission system comprises an annular input member adapted to be keyed at least circumferentially to a first shaft. It has a generally cylindrical axial wall. A movement take-up device within this cylindrical wall has at least one protected mild steel lug by which it is keyed axially and circumferentially to the cylindrical wall and by which it is adapted to be at least circumferentially keyed to a second shaft. The movement take-up device also comprises an input part to which one end of this lug is welded, the other end of the lug being fixed to the cylindrical wall.

Abstract: A transmission system comprises an annular input member adapted to be keyed at least circumferentially to a first shaft. This input member has a generally cylindrical axial wall and a generally transverse radial wall. A movement take-up device within the cylindrical wall has an input part by which it is keyed axially and circumferentially to the input member and adapted to be at least circumferentially keyed to a second shaft. The input part bears axially on the transverse wall. At least one dog is attached to the cylindrical wall and has at least one of its two lateral edges generally transversely disposed relative to the axis of the system and converging towards its other lateral edge in the direction towards the transverse wall. A notch in part of the input part is complementary to and interlocked with the aforementioned dog.

Abstract: A fluid coupling interposed between an induction motor and a load has an impeller and a turbine together defining a working chamber connected via radially inward and radially outward passages with a delay chamber on the impeller side of a corotating housing. The two sets of passages are selectively blockable by shutters that are controlled by an evaluator, inserted in a space between the motor and load shafts, which also accommodates a power supply consisting of one or more batteries. The evaluator responds to several sensors, measuring such parameters as motor torque, load speed and acceleration, to drain or refill the working chamber.

Abstract: An axially flexible drive disc of sheet-metal for vehicle propulsion includes a centrally disposed flange for attachment to the end of the drive shaft of the vehicle propulsion engine and is connected at its external circumference at a few, preferably three, fastening points, located evenly distributed around the periphery, to the input element of the adjacent gearbox. The gear box includes a hydrodynamic torque converter as the input element with the converter housing simultaneously assuming the flywheel function for the vehicle propulsion engine.

Abstract: A hydrokinetic unit for use with an automatic power transmission mechanism in an automotive vehicle driveline comprising a lock-up clutch for connecting directly the turbine and the impeller of the hydrokinetic unit to effect a fully mechanical, direct drive therethrough, the lock-up clutch being situated internally of the hydrokinetic unit and including a vibration cushion and damper that cushions clutch engagement and eliminates or reduces undesirable torque variations or pulses in the driveline when the clutch is engaged and during clutch engagement thereby improving the driveability of the vehicle.

Abstract: The invention relates to a hydrodynamic transmission system comprising at least one pump and a bladed turbine arranged to form a toroidal fluid circuit.The leading edges of the blades of the pump and turbine are inclined relative to the corresponding radial plane, and the blades are designed in such a way as to extend the path followed by the streams of fluid nearest the centre relative to the path followed by the streams of fluid furthest away from the centre. There is thus obtained a reduction in the shock and friction losses to improve performance and increase the starting torque.Disclosed application is to automobile vehicles.