Gkn Driveline International Gmbh

Gkn Automotive Gmbh

Viscodrive Gmbh

Gkn Automotive Ag

Other

Wolfgang Hildebrandt

Thomas Weckerling

Stephan Maucher

Peter Amborn

Anna Gremmelmaier

Rolf Cremerius

Ida Benner

Peter Harz

Klaus Greulich

Herbert Konegen

Ida Hassenrik

Orkan Eryilmaz

Peter Seigert

Theodor Gassmann

Hans-Heinrich Welschof

Jan Haupt

Adrian Chludek

Markus Deisinger

Joachim Wette

Michael Ricks

Thomas Schafferus

Ralf Schumacher

Hans Schreiber

Hans-Jürgen Post

Peter Bilz

Moritz Abbenhaus

Winfried Busch

Frank Reher

Sven Herber

Hans Wormsb&auml;cher

Charles Fuerstenau

Achim Schmeink

Anna Gemmelmaier

Kiyoshi Taniyama

Jürgen Post

A constant velocity joint comprises an outer joint part with outer ball tracks and an inner joint part with inner ball tracks. An outer ball track and an inner ball track respectively form a pair of tracks with one another; in each, a torque-transmitting ball is guided. The torque-transmitting balls are accommodated in a ball cage with circumferentially distributed cage windows. In any angular position of the constant velocity joint an opening angle is formed between an outer tangent to the outer ball track and an inner tangent to the inner ball track. At an articulation angle of zero degrees the opening angle is greater than zero degrees. A central articulation angle range is defined with articulation angles less than fifteen degrees. The opening angle increases by at least two degrees within the central articulation angle range, and is less than twelve degrees for all articulation angles within the central articulation angle range.

Constant velocity joint

A constant velocity joint comprises an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, wherein respectively an outer ball track and an inner ball track form a pair of tracks with each other; a torque-transmitting ball in each pair of tracks; a ball cage in which the torque-transmitting balls are received; wherein a first articulation angle range is defined comprising articulation angles of less than twenty degrees, and a second articulation angle range comprising articulation angles greater than twenty degrees; wherein an opening angle within the first articulation angle range increases as the articulation angle (&#x3b2;) increases, and wherein a first mean opening angle increase of the first articulation angle range is greater than a second mean opening angle increase of the second articulation angle range.

A transmission arrangement for a hybrid vehicle has an internal combustion engine and an electric machine. A first drive torque of the internal combustion engine and a second drive torque of the electric machine are transmissible to at least one drive shaft of the hybrid vehicle by the transmission arrangement. The transmission arrangement comprises a first planetary transmission with first components including a first sun gear, first ring gear and first planet carrier. A third drive torque is transmissible to a second planet carrier of a second planetary transmission by the first planet carrier. The second planetary transmission has second components including a second planet carrier, second sun gear and third sun gear. The second sun gear meshes with a first toothing of a second planet gear. The third sun gear meshes with a second toothing of the second planet gear. A drive shaft of the hybrid vehicle is driveable by the third sun gear.

Hybrid vehicle transmission assembly and drive system

A constant velocity joint comprises an outer joint part with a longitudinal axis and first and second outer ball tracks. The outer joint part comprises an attachment side and an aperture side. An inner joint part has a longitudinal axis and first and second inner ball tracks. with a torque transmitting ballin each pair of tracks, and a ball cagewith cage windowsin which the ballsare held. In each angular position of the constant velocity jointan opening angle is enclosed between an outer tangent and an inner tangent at the ball. At least one of the first and second pairs of tracks is designed such that, within a small articulation angle range comprising at least the joint central plane, at at least an articulation angle, an opening angle amounts to zero, and within a greater articulation angle range, an aperture-side opening angle of a first pair of tracks widens in the opposite axial direction relative to the aperture-side opening angle of a second pair of tracks.

Constant velocity joint in the form of a counter track joint

A rolling boot comprises a first fastening region for fastening the boot to a joint casing, a second fastening region for fastening the boot to a shaft, and a fold region between the first and the second fastening region with a first fold near to the first fastening region and a second fold near to the second fastening region. The boot further comprises, between the first fastening region and the first fold, a first transition region comprising a first flange neighboring the first fastening region with a bottom. A ratio between a first minimal diameter D, defined by the bottom of the first flange of the first transition region, and a second maximal diameter D, defined by the first fold, where both are viewed in a longitudinal section direction along the main axis, is between approximately 1:1.01 to approximately 1:1.25.

Rolling boot with transition region

A constant velocity joint comprises an outer joint part with a longitudinal axis and outer ball tracks, wherein the outer joint part comprises an attachment side and an aperture side; an inner joint part with a longitudinal axis and inner ball tracks; a torque transmitting ball in each pair of tracks; a ball cage with cage windows in which the balls are held, wherein in each angular position of the constant velocity joint there is enclosed an opening angle &#x3b4; between an outer tangent T and an inner tangent T' at the ball, wherein at least one of the pairs of tracks is designed such that, inside a small articulation angle range, which comprises at least the joint central plane EM, in at least one joint articulation angle &#x3b2;, an opening angle &#x3b4; amounts to zero, and that inside a larger articulation angle range, an aperture side opening angle &#x3b4; of a ball moving towards the aperture side of the outer joint part and an attachment side opening angle &#x3b4; of a ball moving at the same joint articulation angle &#x3b2; towards the attachment side of the outer joint part do not equal zero and open in the same axial direction.

A joint in the form of a counter track joint is disclosed that comprises a joint outer part with first outer ball tracks and second outer ball tracks; a joint inner part with first inner ball tracks and second inner ball tracks; wherein first aperture angles are respectively formed between tangents to contact points of a ball with the first outer ball track and with the first inner ball track, and second aperture angles are respectively formed between tangents to contact points between a ball with the second outer ball track and with the second inner ball track. The first aperture angles of the first track pairs open towards a first side of the joint, and the second aperture angles of the second track pairs open towards a second side of the joint. Outer axial play is provided between the joint outer part and the ball cage. Inner axial play is provided between the ball cage and the joint inner part. Axial play permits relative axial displacement of the joint inner part with respect to the joint outer part.

Counter track joint with axial displacement range

An articulated structural part includes a peripheral zone. The peripheral zone includes a surface, an outermost layer situated immediately adjacent the surface, a further layer situated adjacent the outermost layer and a core situated adjacent the further layer, wherein the outermost layer is substantially martensite. The further layer includes a varying mixture of martensite and of ferrite or perlite. The core is substantially ferrite or perlite. A process for producing an articulated structural part is also provided.

Process for the production of an articulated structural part having improved wear resistance

A constant velocity joint () in the form of a counter track joint wherein, when the joint is in the aligned condition, the ratio (V) of the pitch circle diameter (PCDS) of the shaft toothing in the inner joint part () in the power of three relative to the product of the ball diameter (DK) squared and pitch circle diameter (PCDB) of the balls () assumes a value ranging between 0.9 and 1.3.

Counter track joint with building space

A driveshaft assembly having two CV joints and an intermediate shaft. One of the CV joints () includes an outer joint part () with first ball tracks (), an inner joint part () with second ball tracks (), and balls () held in a common plane by a cage (). First and second angles of intersection of the ball tracks () of a pair of tracks are identical in size and are positioned symmetrically relative to the joint axis. The ball cage () is axially fixed in the constant velocity joint. The intermediate shaft includes a longitudinal plunging unit () having a sleeve () with first ball grooves () which extend axially, a journal () with second ball grooves () which extend axially, balls () which are held in a cage () in groups in pairs of the first and second ball grooves ().

Plunging sideshaft assembly with joint

A constant velocity fixed ball joint () having a longitudinal axis (A), an outer joint part () with an annular member () and a joint base (), an inner joint part () which is axially supported on the joint base (), and a cage () for receiving the balls () and holding the balls () in a common plane. The cage () is held in both directions on an inner face in the outer joint part (). The inner joint part (), in a first direction, is unsupported relative to the cage (). In a second axial direction towards the joint aperture (), the inner joint part () is indirectly supported via the cage () on the outer joint part (). The cross-section of the inner joint part () is smaller than the base aperture in the annular member () for the joint base ().

Constant velocity fixed ball joint with a multi-component outer joint part

A counter track joint including first pairs of tracks whose control angles open in a first axial direction, and second pairs of tracks whose control angles open in a second axial direction. The outer joint part forms an introducing aperture for the ball cage. The ball cage, while engaging the outer tracks, can be threaded into the outer joint part in the second axial direction. The outer joint part forms a first stop and guiding face for a spherical outer face of the ball cage. Between the introducing aperture and the first stop and guiding face, the outer joint part comprises a displacement region for the ball cage. A securing element forms a second stop and guiding face for the spherical outer face of the ball cage.

Constant velocity fixed ball joint in the form of a counter-track joint

A constant velocity fixed ball joint in the form of a counter track joint, having an outer joint part with outer tracks, an inner joint part with inner tracks, torque transmitting balls received in pairs of tracks formed of outer tracks and inner tracks, and a ball cage with cage windows in which the balls are held in a common plane and guided on to the angle-bisecting plane when the joint is articulated. First outer tracks, together with first inner tracks, form first pairs of tracks whose control angles open in a first axial direction. Second outer tracks, together with second inner tracks, form second pairs of tracks whose control angles open in a second axial direction, with the control angles being defined as angles between the tangents at the ball contact points in the tracks when the joint is in the aligned condition. The outer joint part forms a first stop-and-guiding face for a spherical outer face of the ball cage. A securing element at the outer joint part forms a second stop-and-guiding face for the spherical outer face of the ball cage. The inner face of the outer joint is undercut-free if viewed in the second axial direction.

Constant velocity fixed ball joint as a counter track joint

A constant velocity universal ball joint comprising an outer joint part having a first axis and comprising an inner aperture in which there are provided substantially longitudinally extending first ball tracks, an inner joint part having a second axis and forming a ball hub positioned in the inner aperture of the outer joint part and being provided with substantially longitudinally extending second ball tracks, torque transmitting balls guided in first and second ball tracks associated with one another in pairs, and an annular ball cage which is arranged between the outer joint part and inner joint part and comprises circumferential distributed ball windows in which the individual balls are held in a common plane and guided on to the angle-bisecting plane between the first axis and the second axis, wherein at least the ball tracks of one of the joint parts&mdash;outer joint part or inner joint part&mdash;comprise a track cross-section which remains uniform along the length of same, whose second derivative rises continuously and monotonically from the track base, whose radius of curvature is not constant and which, when the joint is torque-free, permits a contact between the respective ball and the track base within a range of &lE;5&deg; measured from the track base.

Constant velocity ball-and-grove joint

A constant velocity fixed ball joint in the form of a counter track joint, having an outer joint part with outer tracks, an inner joint part with inner tracks, torque transmitting balls which are received in pairs of tracks consisting of outer tracks and inner tracks, and a ball cage with cage windows in which the balls are held in a common plane and are guided on to the angle-bisecting plane when the joint is articulated. First outer tracks, together with first inner tracks, form pairs of tracks whose control angles open in a first axial direction and in which first balls are held. Second outer tracks, together with second inner tracks, form pairs of tracks whose control angles open in a second axial direction and in which second balls are held. The control angles are defined as angles between the tangents at the ball contact points in the tracks. The outer joint part, on its inside, forms a stop-and-guiding face for a spherical outer face of the ball cage. The stop-and-guiding face is undercut-free if viewed in the second axial direction (R ). The ball cage, on its inside, forms a stop-and-guiding face for a spherical outer face of the inner joint part. The stop-and-guiding face is undercut-free if viewed in the first axial direction (R ).

Growing community of inventors

Siegburg, Germany

Wolfgang Hildebrandt