Abstract: A compressor starting torque converter method and apparatus for high power rotating equipment strings includes a compressor starting torque converter (CSTC) (16) and gearing to make the input and output speed conform to the speed and power requirements of the at least one compressor (4) at the end of the string. The string also includes a prime mover (10), either a motor or gas turbine with a starter motor. The CSTC is driven by a prime mover that has been geared down (via 18) to an appropriate speed for efficient power transfer, followed by a gear increasing unit (20) to allow the output of the CSTC to be increased to conform to the necessary requirements of a high speed compressor. The gearing can be two separate units with their own housings, or incorporated in a single housing with the CSTC. The CSTC may be a CSTC used in pressurized starts high compressor load strings for LNG refrigeration service.

Abstract: The invention relates to a hydrodynamic torque converter with a housing which comprises a wall which is on the driving side, where a connecting plate is fastened to the housing wall and comprises several mounting locations for connecting the hydrodynamic torque converter to a drive unit, the mounting locations being distributed over the circumference of the connecting plate and in the mounted state of the hydrodynamic torque converter being fastened at corresponding mounting locations of the drive unit. In order to provide a hydrodynamic torque converter which can be produced economically and has a long service lifetime, for each two mounting locations the connecting plate comprises, between them in the circumferential direction, a fastening area with which the connecting plate is fastened to the housing wall which is on the driving side.

Abstract: A torque converter includes a plurality of blades and a core ring supporting the plurality of blades. The core ring includes at least two segments, each segment having two circumferential ends. A core ring and method are also provided.

Abstract: A torque converter for connecting to an input shaft of a transmission including a housing, a turbine housed in the housing, a turbine hub connected to the turbine, the input shaft of the transmission being located within the turbine hub, a piston plate connected to the housing so as to be radially fixed with respect to the housing, and a bushing connected to the piston plate and the turbine hub, the piston plate via the bushing and the turbine hub centering the turbine and the input shaft of the transmission. The bushing may have a radial flange.

Abstract: A torque converter 1 is a device for transmitting torque by fluid, and includes a front cover 14, an impeller 18, a turbine 19, and a stator 20. The impeller 18, the turbine 19 and the stator 20 constitute a fluid operating chamber 6 having a torus shape. Flattening (L/D1) is less than or equal to 0.18, wherein D1 is an outer diameter of the fluid operating chamber 6 and L is the axial direction length of the fluid operating chamber 6. In the impeller shell 22, a surface 22a on which the impeller blades 23 are fixed has an impeller straight portion 22b showing a straight line in a cross section. In the turbine shell 25, a surface 25a on which the turbine blades 26 are fixed has a turbine straight portion 25b showing a straight line in a cross section.

Abstract: A torque converter includes: a impeller having an outer shell, an inner core, and at least one pump blade provided between the outer shell and the inner core; a turbine having at least one turbine blade; and a stator capable of establishing a fluid circulation between the impeller and the turbine. An exit angle of the at least one pump blade is greater than ?90 degrees up to ?68 degrees at the most, beginning from a first point, at which the at least one pump blade is in contact with the outer shell, to a second point, at which the at least one pump blade is in contact with the inner core.

Abstract: The invention concerns a hydrodynamic coupling or a hydrodynamic brake with the following features: having an impeller and a turbine wheel, which together form a toroidal working chamber; the impeller sits on a driveshaft, and the turbine wheel sits on a driven shaft; having a housing, which encloses the impeller and, together with the impeller, forms a retaining space, which is conductively connected to the working chamber; having an inlet and an outlet for the filling and emptying of the working chamber; the driveshaft supports a dynamic pressure pump, which projects into the retaining space and which can be placed in rotation around the driveshaft (20); the dynamic pressure pump has an inlet in its radial outer region and is connected to the outlet by its radial inner region; a connection that is resistant to rotation can be produced and/or released again selectively between the dynamic pressure pump and the driveshaft.

Abstract: A system employing a torque converter and a synchronizing motor to start up a large rotational driver/load combination. The torque converter is employed to increase the rotational speed of the load to the maximum speed permitted by the torque converter. The synchronizing motor is then employed to further increase the rotational speed of the load to substantially match the rotational speed of the driver.

Abstract: The invention relates to a starting unit (1, 1.2, 1.3, 1.4, 1.5, 1.6) comprising a starting element in the form of a hydrodynamic component (5, 5.2, 5.3, 5.4, 5.5, 5.6) and a housing (17, 18) that is coupled with the primary impeller (6) in a static or rotationally fixed manner and that encloses at least one impeller (7, 8) in the axial direction, thereby defining at least one working fluid guide channel or compartment (19). The invention is characterized in that the unit is provided with means (2) for influencing the transmission behavior of the hydrodynamic component (5). Said means comprise pressure medium-actuated integrated mechanical components (3) that have an at least indirect effect on the working cycle ensuing in the working compartment (8, 8.2, 8.3, 8.4, 8.5, 8.6).

Abstract: A hydrodynamic torque converter with a pump wheel, a turbine wheel, and a stator, which combine to form a hydrodynamic circuit, where the flow conditions in the hydrodynamic circuit can displace the turbine wheel axially toward the pump wheel when the converter is operating in pull mode and in the opposite direction when operating in push mode, where at least one axial bearing on the drive side of the freewheel and at least one drive-side thrust washer establish a working axial connection between the turbine wheel and a component of the freewheel.

Abstract: A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell; a turbine arranged being opposed to the pump and having an annular turbine shell with an annular core ring mounted on a turbine hub capable of rotating relative to the pump hub and a plurality of runners radially arranged in the turbine shell; and an operation fluid filled in the pump and in the turbine; wherein, the turbine is so constituted as to slide on the turbine hub in the axial direction thereof, and has resilient urging means for urging the turbine in a direction to separate away from the pump side; and the core ring of the pump and the core ring of the turbine are so constituted that the gaps for flowing the operation fluid into the two core rings are increased in a state where the turbine is close to the pump and that the gaps for flowing the operation fluid into the two core rings are decreased as the turbine separates awa

Abstract: An apparatus for supporting an electric power source in a transmission includes a transmission housing, and an electric machine including a rotor and a stator secured to the housing. A first member is secured to the rotor, extends radially toward an axis of rotation, and is formed with a first pilot surface. A second member, secured to the rotor and the housing, extends from the housing toward the axis and is formed with a second pilot surface that is aligned axially with the first pilot surface. An anti-friction bearing, located at an axial rearward side or axially frontward side of a torque converter, is engaged with the first pilot surface and the second pilot surface. A second balanced bearing is located either in the driving engine or the driven transmission.

Abstract: A torque converter output augmentation apparatus includes a torque converter connected between an engine and a driven component in a drive train. The torque converter is connected into a hydraulic circuit along with a hydraulic fluid pressurizer, a hydraulic fluid container, and a valve. The hydraulic fluid pressurizer pressurizes hydraulic fluid received from the torque converter and the hydraulic fluid container stores pressurized hydraulic fluid received from the hydraulic fluid pressurizer. A controller is programmed to cause the valve to alternately admit and block pressurized hydraulic fluid flow from the hydraulic fluid container to the torque converter. Pressurized fluid received from the hydraulic fluid container is directed within the torque converter in a manner that augments torque converter output to the driven component.

Abstract: A direct replacement impeller hub for the torque converter of an automatic transmission and a method of repairing an impeller assembly utilizing the replacement impeller hub to provide increased service longevity. In the present impeller hub the geometric roundness characteristic of the impeller hub is controlled to an exacting tolerance during the manufacturing process in accordance with American National Standards Institute (ANSI) definitions to provide a close tolerance fit within a mating bearing sleeve. The present impeller hub is also finish ground in accordance with ANSI definitions to reduce surface friction and to provide an optimal sealing surface for engagement with a radial seal, which is disposed about the impeller hub sealing it to prevent contaminants from entering the hydraulic pump of the transmission. The present impeller hub also includes additional structural features such as fillet radii machined on selected features to facilitate assembly of the torque converter.

Abstract: A torque converter with torus shape that is sheared such that imagined axial sections through the torus shape, starting from the inner stator passage diameter, are shifted increasingly axially in one direction as the effective radius increases.

Abstract: A torque converter in which a plurality of output openings of the pump form a cone-shape so that a plurality of input openings of the turbine are substantially parallel to the plurality of output openings of the pump.

Abstract: The present invention broadly comprises a cone connection assembly for a torque converter, including: a first surface operatively arranged for connection to a crankshaft and a second surface on a cover of the torque converter. The first and second surfaces are arranged to be engaged and the first surface is arranged to transfer torque to the second surface via the engagement of the first and second surfaces. In some aspects, the crankshaft comprises a longitudinal axis, the first surface is disposed about the longitudinal axis, the cover comprises an outside surface, and the outside surface comprises the second surface. In some aspects, the first and second surfaces are arranged to be frictionally engaged or the first and second surfaces have complementary surface features and the first and second surface features are arranged to interlockingly engage.

Abstract: The present invention broadly comprises a thrust washer for a torque converter, including a front surface and at least one first channel. The at least one channel is at least partially enclosed by the front surface and is in fluid communication with an inner circumference and an outer circumference for the thrust washer. The front surface is arranged to engage a cover for the torque converter. In some aspects, the at least one channel is fully enclosed by the front surface. The thrust washer also includes a back surface, oppositely disposed from the front surface. The at least one channel is at least partially enclosed by the back surface. In some aspects, the thrust washer includes a front piece and a back piece matingly engaged and configured to form the at least one channel. The front and back pieces are fixedly secured or removably secured.

Abstract: A hydrodynamic converter is provided having a pump wheel, which is flowed through in operation from the inside to the outside; a turbine wheel, which is flowed through in operation from the outside to the inside; guide blades between the pump wheel and the turbine wheel; and guide blades between the turbine wheel and the pump wheel. The converter can have a speed ratio of between the speed nT of the turbine wheel and the speed nP of the pump wheel of between 1.2 and 4 at approximately even or falling ? progress. The converter can also have different speed ratios between pump and turbine, which can be realized with the ratio R/r equal to or larger than 1.

Abstract: A pump drive shaft for an automatic transaxle wherein the cross-sectional profile of the internal flow tube has been modified to a non-cylindrical configuration to increase the flow of transmission fluid through the pump drive shaft from the torque converter. A selected surface of the non-cylindrical tube is positioned at a predetermined angular orientation within the pump drive shaft to provide increased radial clearance between the flow tube and the fluid inlets/outlets to increase the flow of transmission fluid from the torque converter. In various embodiments the flow tube is elliptical, rectangular, bi-lobular in cross-section or a variation thereof, which produces an axially extending fluid passage between the flow tube and the fluid inlets/outlets having an increased cross-sectional and flow capacity from the torque converter. The present disclosure also sets forth a method of installing the present internal flow tube within the pump drive shaft.

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: The invention provides a high-strength stamped aluminum brazed turbine for use in an automotive transmission torque converter, and a method therefor. The method includes stamping aluminum inner and outer shells each having a plurality of slots, and stamping a plurality of aluminum turbine blades having tabs. The tabs of the turbine blades are inserted into the slots of the inner and outer shell, and the tabs are bent to attach the turbine blades to the inner and outer shell. The turbine blades are brazed to the inner and outer shell with a silicon material, thereby forming a turbine of sufficient strength to operate in the powerflow path of an automotive transmission using transmission oil as its working fluid.

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: An impeller, a turbine, and a stator form a torus of a torque converter. A elliptic ratio L/H of an axial length L of the torus to a radial height H of the torus is 0.72 or smaller. A diameter ratio (D2/D1) of an inner diameter D2 of the torus to an outer diameter D1 of the torus is 0.45 or greater. The impeller includes an impeller core, and an impeller axial length ratio (Lp/D1) of an axial length Lp of the impeller core to the outer diameter D1 of the torus is in a range between 0.030 to 0.045. The turbine includes a turbine core, and an turbine axial length ratio (Lt/D1) of an axial length Lt of the turbine core to the outer diameter D1 of the torus is in a range between 0.021 to 0.029.

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: The invention relates to a hydrodynamic coupling. Said coupling comprises a primary wheel (2; 2.2; 2.3) and a secondary wheel (3; 3.2; 3.3), which together form a toroidal working chamber (4; 4.2; 4.3), a shell (5; 5.2; 5.3), which is connected in a rotationally fixed manner to the primary wheel and surrounds the secondary wheel in the axial direction and at least partially in the radial direction, thus forming an intermediate chamber (6; 6.2; 6.3) and at least one passage (8; 8.2; 8.3) that is located in the outer radial area of the shell. The invention is characterised by the following features: a second shell (10; 10.2; 10.3) coupled in a rotationally fixed manner to the first shell and/or the primary wheel, thus forming a second intermediate chamber (11; 11.2; 11.3); the second intermediate chamber is connected to the first intermediate chamber via the passage (13; 13.2; 13.

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 hydrodynamic torque transmitting device is disclosed that overcomes problems created by the presence of a thrust washer therein. In a torque converter 1 according to the present invention, a piston 41 is disposed between a front cover 2 and a turbine 4 to form a front chamber F on a front cover side and a rear chamber R on a turbine side, and can move toward and away from the front cover 2 by means of a hydraulic pressure differential created between the front and rear chambers F and R. The piston 41 has a disk shaped body 41a, and a frictional coupling portion (friction facing 61) disposed on a outer peripheral portion of the body 41a that serves to frictionally engage with the front cover 2. The turbine hub 23 and the front cover 2 have opposing portions (63, 23a) that oppose each other across an axial space. The piston 41 has a support portion 48 that axially supports the turbine 4 when the piston 41 moves to a position near the front cover.

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 method and a device are described for influencing the flow in a torque converter. The peripheral velocity of the fluid on its way to the open end of the transmission input shaft is made to approach the respective peripheral velocity of the converter housing.

Abstract: A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell, and a turbine arranged facing the pump and having an annular turbine shell with an annular core ring mounted on a turbine hub that can rotate relative to the pump hub and a plurality of runners radially arranged in the turbine shell, wherein the turbine shell is so constituted to slide on the turbine hub in the axial direction, and provision is made of a centrifugal pushing means for pushing the turbine toward the pump by the action of the centrifugal force produced by the rotation of the turbine.

Abstract: A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell, and a turbine arranged facing the pump and having an annular turbine shell with an annular core ring mounted on a turbine hub that can rotate relative to the pump hub and a plurality of runners radially arranged in the turbine shell, wherein the turbine shell is so constituted to slide on the turbine hub in the axial direction, and provision is made of a resilient urging means for pushing the turbine toward the side of the pump.

Abstract: A torque converter is provided to improve the transmission efficiency of a torque converter having a low flatness ratio. An impeller 21, a turbine 22, and a stator 23 constitute a torus. The flatness ratio of the torus, which is the ratio of the axial length L to the radial length H (L/H), is less than 0.8 and the impeller 21 has at least thirty-seven impeller blades 27 on the side facing the turbine 22.

Abstract: The invention relates to a hydrodynamic component with at least two rotating impellers which form a working chamber for a working circuit; comprising a closed circuit coupled to the inlet to the working chamber and the outlet from the working chamber. The invention is characterized by the following feature: the closed circuit is pressure-tight.

Abstract: A torque converter housing includes an end cover that is secured to an impeller outer wall in a unique manner. The outward portions of the end cover extend in a radial direction but not in an axial direction. The end cover preferably does not extend axially beyond a plane of a clutch supported within the assembly. The impeller outer wall extends axially beyond the plane where it is secured to the end cover. The inventive arrangement changes the location of the connection between the impeller outer wall and the end cover, which enables the use of various other optional and advantageous features of the inventive arrangement. In one example, the impeller outer wall is welded to the end cover. In another example, a threaded connection secures the impeller outer wall to the end cover.

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.

Abstract: A starter unit comprising: an input and an output; a starter element, configured as a hydrodynamic component comprising a drive element that can be coupled to the input in a rotationally fixed manner and a driven element that can be coupled to the output. A free wheel mechanism is located between the driven element of the starter element and the output.

Abstract: A stator support device for supporting a stator of a torque converter includes a one-way coupling device including an outer race disposed radially inwardly of the stator, and an inner race disposed radially outwardly of a rotation axis of the torque converter, an end bearing that holds a spacing between the outer race and the inner race, a thrust bearing race disposed adjacent to an end face of the outer race and arranged to restrict movements of the end bearing in a direction of the rotation axis, and a thrust bearing disposed at a transfer surface of the thrust bearing race and adapted to bear a load applied to the one-way coupling device.

Abstract: A fluid coupling comprising a pump having a pump shell and a plurality of impellers arranged in the pump shell, a turbine having a turbine shell arranged to be opposed to the pump and a plurality of runners arranged in the turbine shell, and a baffle mechanism arranged in a fluid circulation passage formed by the pump shell and the turbine shell, wherein the baffle mechanism comprises a first baffle plate having a plurality of first openings, a second baffle plate that has a plurality of second openings and is disposed in such a manner as to overlap with the first baffle plate and as to be allowed to rotate relative thereto, and a centrifugal operation means for turning the second baffle plate relative to the first baffle plate in response to the rotational speed of the first baffle plate.

Abstract: In a torque converter in which a radial bearing and a one-way clutch are disposed adjacent and concentrically with each other between a hub of a side cover and a turbine shaft extending through the hub, and a hub of an output gear is coupled to an outer end of the turbine shaft, an inner peripheral surface of the hub of the side cover is comprised of a larger-diameter inner peripheral surface portion located on the side of its base end, and a smaller-diameter inner peripheral surface portion located on the side of its tip end and connected to the larger-diameter inner peripheral surface portion through an annular step, and an outer race of the radial bearing fitted to the larger-diameter inner peripheral surface portion is clamped by the annular step and a retaining ring locked to the larger-diameter inner peripheral surface portion.

Abstract: A structure has individual oil passages for different applications of oil. A torque converter is provided on a crankshaft having an axially extending center hole. A crank chamber and a transmission chamber are separated from each other through a one-way valve. A pipe is inserted in the center hole of the crankshaft to form an oil passage for supplying hydraulic oil for driving the torque converter, an oil passage returned from the torque converter, and an oil passage for supplying a lubricating oil to the area surrounding the crankshaft. The oil passage returned from the torque converter is in communication with a chamber defined by a pair of inner and outer oil seals for sealing a bearing mounted on the crankshaft, a lower portion of the transmission chamber, and an oil passage having a check valve at the downstream end thereof.

Abstract: A constant velocity transmission which provides maximum torque and speed from a power source such as an internal combustion engine to an output shaft of the transmission while maintaining the engine at optimum operational speed. The transmission takes advantage of the principle of fluid friction to transmit rotational forces from drive blades mounted on an input shaft to stater blades positioned on the inside of a drum encompassing one end of the input shaft and the drive blades. The drive blades slidably mounted on a slanted surface of a drive drum on the input shaft and move closer to and away from the stater blades when laterally translated. Fluid driven by the drive blades imparts varied force and torque to the stater blades depending on their distance therefrom thereby transmitting variable speed and torque to the output shaft attached to the drum.

Abstract: The invention relates to a hydrodynamic coupling. Said coupling comprises a primary wheel (2; 2.2; 2.3) and a secondary wheel (3; 3.2; 3.3), which together form a toroidal working chamber (4; 4.2; 4.3), a shell (5; 5.2; 5.3), which is connected in a rotationally fixed manner to the primary wheel and surrounds the secondary wheel in the axial direction and at least partially in the radial direction, thus forming an intermediate chamber (6; 6.2; 6.3) and at least one passage (8; 8.2; 8.3) that is located in the outer radial area of the shell. The invention is characterized by the following features: a second shell (10; 10.2; 10.3) coupled in a rotationally fixed manner to the first shell and/or the primary wheel, thus forming a second intermediate chamber (11; 11.2; 11.3); the second intermediate chamber is connected to the first intermediate chamber via the passage (13; 13.2; 13.

Abstract: A drive arrangement for a motor vehicle includes a drive shaft, a coupling device, and a coupling arrangement. The drive shaft is connectable with the coupling device for transmission of force solely via the coupling arrangement. The coupling arrangement has a first toothing arrangement connectable with the drive shaft so that the first toothing arrangement is fixed with respect to rotation relative to the drive shaft and a second toothing arrangement connectable with the coupling device so that the second toothing arrangement is fixed with respect to rotation relative to coupling device. The first toothing arrangement and second toothing arrangement engage when the drive shaft and coupling device are coupled together for transmission of force.

Abstract: A street sweeper for cleaning municipal streets and commercial parking lots uses a single engine with a modified torque converter on the automatic transmission. The torque converter is designed to lock up or engage higher than on a standard torque converter. This increases the horsepower and torque output of the engine for driving the sweeping apparatus without propelling the vehicle at speeds too high for the sweeping function. As engine rotational speeds increase further, the modified torque converter engages fully and drives the vehicle at desired road speeds.

Abstract: The invention relates to a hydrodynamic component (1) comprising: two rotating blade wheels: a primary blade wheel (3) and a secondary blade wheel (4), which together form at least one-torus-shaped working chamber (5); at least one inlet (10) for service fluid leading into the torus-shaped working chamber, said inlet being located in the vicinity of the lowest static pressure; at least one outlet (24) leading out of the torus-shaped working chamber; a working fluid circulation (22) which is set up in the torus-shaped working chamber during operation; a closed circuit (21) allocated to the working chamber and an external section (23) of the closed circuit, said section being located between the outlet and the inlet.

Abstract: An assembly including a driving connection for torque transmission in a drive train of an engine by means of a shaft-hub connection. The shaft-hub connection is provided with lengthwise teeth for releasable connection of a crankshaft with a coaxial hydrodynamic torque converter. The lengthwise teeth of the shaft-hub connection have tooth cross sections that increase or decrease in the lengthwise direction of the teeth.

Abstract: A torque converter comprises an impeller shell, a pump impeller integrally formed with the impeller shell, a turbine runner, a stator, a front cover, and at least one of a flanged portion through which a driving power of an engine is transmitted and a ring gear for a starter. The flanged portion is formed on an outer peripheral portion of an outer hull that includes the impeller shell and the front cover. A pilot boss portion is disposed at an axial portion of the front cover and is adapted to be fitted to a crank shaft of the engine, and a sleeve-like oil pump driving shaft is disposed at an axial portion of the impeller shell and is adapted to drive an oil pump. The pilot boss portion is formed integrally with the front cover through a plastic working operation, and the flanged portion formed at a front portion of the outer periphery of the front cover is increased in thickness through a plastic working operation that forms the flanged portion as a lamination.

Abstract: A torque converter defines an ellipticity lower than or equal to 0.23 which is an outermost length of the torque converter in an axial direction, divided by an outermost diameter of the torque converter in a radial direction. The torque converter includes: a pump impeller connecting to an input shaft; a turbine runner opposed to the pump impeller and connecting to an output shaft; and a stator disposed between an inlet of the pump impeller and an outlet of the turbine runner, by way of a one way clutch which allows a one way rotation. The torque converter transmits a power by circulating a fluid through the pump impeller, the turbine runner and the stator. A first area ratio A is: 0.23≦A≦0.45, A second area ratio B is: 0.23≦B≦0.45, and A third area ratio C is: 0.15≦C≦0.23.

Abstract: A fluid coupling comprising: