Van Doorne's Transmissie B.v.

Robert Bosch

Bosch Transmission Technology B.v.

Arjen Brandsma

Johannes Hendrikus Van Lith

Cornelis Johannes Maria Van Der Meer

Johannes Haaije Van Der Kamp

Mark Van Drogen

Gerardus Petrus Maria Van Dijnsen

Paulus Maria Smeets

Bert Pennings

Sipke Koopmans

Johannes Gerardus Ludovicus Maria Van Spijk

Francis Maria Antonius Van Der Sluis

Wilhelmus Johannes Maria Van Wijk

Cornelus Hendricus Maria Van Oirschot

Arie Gerrit Izaäk Van Der Velde

Hendrikus Van Den Boomen

Sebastiaan Pieter Hendricus Jozef Bongers

Hendrikus Adrianus Pelders

Jens Burghaus

Antonius Adrianus Helena Maria Van Dongen

Arjan Van Der Leest

Adrianus Johannes Wilhelmus Van Der Leest

Marco Op Den Velde

Hendrikus Willem Groot Hulze

Peter Jaap Snel

Johannes Antonius Ketelaars

Giel Rompen

Adrianus Albertus Van Heeswijk

Cornelus Hendricus Maria Van Oirshot

Rob Mutsaers

Ronald Cornelissen

Irinel Cosmin Faraon

Gerardus Johannes Maria Lamers

Paulus Adrianus Josephus Maria Faes

Hariharan Raja

Adrianus Antonius Jacobus Maria Van Treijen

Arie Gerrit Isaak Van Der Velde

Peter Verhoeven

Dènis Damkot

Pieter Gerard Van Tilborg

Bas Adrianus Maria Mutsaers

Geert-Jan Schrauwers

Marlène Elisabeth Inge Lemmens

Johannes Adrianus Maria Vermeer

Robert Willem Hoogland

Marc André Musseaus

Antonius Adrianus Helena Maria Dongen

Teunis Evert Van Ginkel

Minh-Duc Tran

Petrus Johannes Van Cromvoirt

Johannes Menno Van Der Vinne

Matijs Van Den Boer

Theodorus Martinus Henricus Janssen

Corijn Snippe

Luc Frambach

Paul Das

Erik Roeloffzen

Joost Van Laerhoven

Amo Klassen

Henricus Adrianus Antonius Maria Tuerlings

Ludovic Peter Willem Huysmans

Cornelia Adriana Elizabeth Crebolder

Andreas Birnesser

Reiner Ramsayer

Michel Joseph Marie Derks

The present disclosure concerns a process for the blanking of metal parts () from a&#x2014;layered basic material () composed of a number of mutually stacked individual layers () placed and clamped between a blanking die () and a blank holder () of a blanking device (), wherein a blanking punch () of the blanking device () is moved relative to the blanking die () to cut and separate the metal parts () from the basic material (). According to the present disclosure, such multi-layer blanking process is carried out in two successive stages (I, II), whereof a first stage (I) entails the punching of holes () by a first blanking punch () without applying a counter punch and whereof a second stage (II) entails the blanking of the metal parts () by a second blanking punch () while being supported by a counter punch ().

Metal parts blanking process for rotor and stator of an electric motor

Disclosed is a process for the blanking of metal parts, in which a multi-layered basic material with a number of mutually stacked, preferably essentially identical, individual layers is placed and clamped partly between a blanking die and a blank holder and partly between a blanking punch and a counter punch and wherein the blanking punch and the counter punch that are moved relative to the blanking die and the blank holder over a distance corresponding to at least a thickness of the multi-layered basic material whereby several blanked parts are cut and separated from the multi-layered basic material.

Process for blanking of metal parts

A transverse member () for a drive belt for a continuously variable transmission with a base part () and two pillar parts (). On either side thereof, the transverse member is provided with a pulley contact surface () for contacting pulleys of the transmission. The pulley contact surfaces () are each provided in two sections () with a surface part () of the transverse member () provided there between that does not arrive in contact with the transmission pulleys, whereof a first section () is provided at least partly in the base part () and whereof a second section () is wholly provided in a respective pillar part ().

Transverse member for a drive belt for a continuously variable transmission

In a pushbelt for a continuously variable transmission that includes at least one endless carrier and a number of transverse segments, which are mounted on the endless carrier. The transverse segments include a bearing surface that contacts the radial inside of the endless carrier, as well as a convexly curved tilting edge that is a part of a main body surface of the transverse segment. According to the present disclosure the convex curvature of the tilting edge extends both radially inward or below and radially outward or above the bearing surface, at least as seen in radial or height direction relative to the endless carrier.

Pushbelt for a continuously variable transmission and a transmission provided therewith

The invention provides for a vehicle drive line provided with an engine () capable of generating an engine torque (Te), a continuously variable transmission (), a driven wheel () and two friction clutches (), a first clutch () being positioned in the drive line between the engine () and the transmission () and a second clutch () being positioned between the transmission () and the driven wheel (), wherein a torque (Tc-max) that is transmissible by the first clutch () and a torque (Tc-max) that is transmissible by the second clutch () are both less than a torque (Tt-max) transmissible by the transmission () and, at the same time, are both essentially equal to or slightly higher than the engine torque (Te).

Method for controlling a belt-type continuously variable transmission and a friction clutch in a vehicular drive line

Continuously variable transmission includes a set of pulleys, each pulley comprising two discs arranged relatively axially moveable on a central pulley shaft for clamping a transmission belt. The belt includes a continuous array of transverse elements, each having lateral pulley contact surfaces for contacting the belt contact surface of each of the pulley discs, and being provided slideably on an endless tensile element of the belt. Each pulley has a mechanical stiffness as incorporated in the transmission and a stiffness related feature of a pulley when expressed as a parameter Sag that indicates an amount of radial displacement of the belt between the discs in the transmission, occurring in response to imposing a maximum amount of axial force Fax during operation of the transmission, relative to a radial position of the belt in an unloaded state of the transmission, amounts to less than 1.2 mm but more than 0.5 mm.

Efficient high torque continuously variable transmission

Drive belt provided with a continuous band having a radially inwardly oriented surface and a radially outwardly oriented surface, and with an array of plate-like transverse elements engaging the continuous band. The band is curved in a transverse direction at a crowning radius of curvature Rcrown and provided with an internal residual stress distribution defining a curling radius of curvature Rcurl at which the band would be curved in longitudinal direction when cut, whereby the continuous band can be bent at a minimum radius of curvature Rmin in longitudinal direction and whereby the ratio between the curling radius and the minimum radius Rcurl/Rmin satisfies the equation:curl/min=(&#x3b4;)/&#x3b4;wherein &#x3b4;i is the largest perpendicular distance in the radial direction between a neutral line NL in the cross section of the continuous band where the stress due to pure longitudinal bending would be zero and the radially inner most surface of the band and &#x3b4;o is the largest perpendicular distance in the radial direction between the neutral line NL and a radially outer most surface of the band.

Drive belt and continuously variable transmission wherein such is utilised

A composite driving belt provided with a carrier and a plurality of transverse elements assembled slidably thereon, the carrier including one or more bands, preferably composed of a plurality of endless metal bands disposed radially around each other, each element being provided with a radially outward directed carrier contact plane for contacting a radial inner contact plane of the carrier while in operation, wherein the contact plane of both the carrier and the element have a non profiled surface. In particular the roughness and shape of the relevant contacting faces of a belt are adapted to achieve a hydrodynamic lubricating condition, while the lubricating oil is defined to meet the requirements of an improved efficiency push belt.

Metal push belt and oil specification related thereto

A continuous variable transmission belt includes a set of nested metal rings, the set interacting with transverse elements provided slidably along the set, and the rings of the set being accommodated with small mutual play between each pair of adjacent rings, where for at least the majority of the pairs of adjacent rings the nominal value of the play is zero. The innermost and outermost rings having an elasticity modulus significantly lower than the intermediate rings.

Belt

A composite driving belt provided with a carrier and a plurality of transverse elements assembled slidably thereon, the carrier including one or more bands, preferably composed of a plurality of endless metal bands disposed radially around each other, each element being provided with a radially outward directed carrier contact plane for contacting a radial inner contact plane of the carrier while in operation, wherein the contacting plane of the transverse element is shaped by an substantially flat surface, while the inner contacting face of the carrier contacting the contact plane the element has a profiled surface, the combined roughness Ra' of both surfaces being more than 0.6 &#x3bc;m, preferably over 0.75 &#x3bc;m. In particular the roughness and shape of the relevant contacting faces of a belt are adapted to achieve a boundary lubricating condition, while the lubricating oil is defined to meet the requirements of prohibiting the occurrence of scratch, at least reducing the urging thereof considerably.

Scratch preventing metal push belt and oil specification

A continuously variable transmission, provided with two adjustable pulleys, each pulley comprising a pair of mutually displaceable essentially frusto-conical pulley sheaves having a radial dimension provided on a pulley shaft, each sheave having a sheave face, whereby the sheave faces of a pulley are mutually oriented at a pulley angle, and with an endless flexible belt for transmitting torque comprising two lateral side faces, which are mutually oriented at a belt angle (alpha) such that the flexible belt tapers radially inwardly and which are intended for interacting with the sheave faces of a pulley under the influence of a clamping force to be exerted on the flexible belt by the sheaves. The belt angle is marginally, but notionally, larger than the pulley angle (beta) of at least one pulley for at least a substantial part of the radial dimension of the pulley sheaves.

Continuously variable transmission, endless flexible belt for torque transmission and adjustable pulley

A transmission belt for a continuously variable transmission includes, transverse elements () and an endless carrier () for keeping together the transverse elements (), each transverse element () provided with a rocking edge () showing a curvature for allowing neighbouring transverse elements () to mutually tilt about an substantially axially oriented contact line () over a tilting angle (&#x3b1;), so that a part of the belt may pass along a longitudinally bent trajectory, the curvature of the rocking edge () defined such that it notionally displaces the contact line () in dependence on the tilting angle (&#x3b1;,&#x3b2;).

Transmission belt provided with transverse elements having a displaceable contact line

A metal push belt () for application in a continuous variable transmission, includes at least one endless tensile member (), and transverse elements being provided freely moveable in the endless direction of the tensile member (). The tensile member is produced of steel, containing non-metallic inclusions of predetermined sizes as observed in the micro-structure of a material section, in accordance with a specified diameter Dof a circle relating to the surface occupation of such an inclusion observed in such micro structure, in which the steel is produced in a constitution having a nominal inclusion size distribution with diameters ranging up to 30 &#x3bc;m, the inclusion diameter range between 10 &#x3bc;m and 30 &#x3bc;m being less than 20% of the total number of inclusions per square unit of sliced material counted by inclusions having a size larger than 2 &#x3bc;m.

Metal push belt and material therefor

The present invention relates to a belt for use in a continuously variable transmission, in particular for automotive application, comprising at least one set ( ) of nested metal rings, the set interacting with transverse elements ( ) provided slidably along the set, and the rings of the set being accommodated with small mutual play between each pair of adjacent rings, characterized in, that for at least the majority of said pairs of adjacent rings the nominal value of said play is zero.

A drive belt ( ) includes at least one continuous band ( ) engaged with a number of (plate-like) transverse elements ( ) such that the elements ( ) may slide freely along a longitudinal direction (L) of the continuous band ( ), whereby the elements ( ) are provided with a taper ( ) allowing mutual rotation of adjacent transverse elements ( ) about a transversely oriented axis ( ) thereby defining a minimum radius of curvature (R ) at which the drive belt ( ) may be bent in its longitudinal direction (L) and whereby the continuous band ( ) is provided with an internal residual stress distribution conforming to a longitudinally bent posture having a pre-bending radius (R ), characterized in that, the pre-bending radius (R ) of the at least one continuous band ( ) is considerably larger than twice the minimum radius of curvature (R ).

Drive belt, method for manufacturing a continuous band thereof and continuously variable transmission wherein such is utilized

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Tilburg, Netherlands

Arjen Brandsma