Abstract: A transmission belt for a continuously variable transmission includes, transverse elements (5) and an endless carrier (9) for keeping together the transverse elements (5), each transverse element (5) provided with a rocking edge (12) showing a curvature for allowing neighbouring transverse elements (5) to mutually tilt about an substantially axially oriented contact line (7) over a tilting angle (?), so that a part of the belt may pass along a longitudinally bent trajectory, the curvature of the rocking edge (12) defined such that it notionally displaces the contact line (7) in dependence on the tilting angle (?,?).

Abstract: A metal push belt (1) for application in a continuous variable transmission, includes at least one endless tensile member (2), and transverse elements being provided freely moveable in the endless direction of the tensile member (2). 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 Dcircle of 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 ?m, the inclusion diameter range between 10 ?m and 30 ?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 ?m.

Abstract: 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.

Abstract: Roller vane pump, in particular suited for pumping fluid in a continuously variable automatic transmission of a motor vehicle, provided with a pump housing accommodating a substantially cylindrical carrier, which is rotatable about a central axis, and a cam ring encompassing the carrier in the radial direction, whereby a radial clearance between the carrier and the cam ring varies along a circumference of the carrier, and with a pump shaft extending co-axial with said central axis through the carrier, characterised in that there is provided in the pump housing a bearing bush having an essentially cylindrical central bore through which the pump shaft extends.

Abstract: The present invention relates to a belt for use in a continuously variable transmission, in particular for automotive application, comprising at least one set (7) of nested metal rings, the set interacting with transverse elements (3) 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.

Abstract: A drive belt (1) includes at least one continuous band (22) engaged with a number of (plate-like) transverse elements (30) such that the elements (30) may slide freely along a longitudinal direction (L) of the continuous band (22), whereby the elements (30) are provided with a taper (31) allowing mutual rotation of adjacent transverse elements (30) about a transversely oriented axis (32) thereby defining a minimum radius of curvature (RMIN) at which the drive belt (1) may be bent in its longitudinal direction (L) and whereby the continuous band (22) is provided with an internal residual stress distribution conforming to a longitudinally bent posture having a pre-bending radius (RPB), characterized in that, the pre-bending radius (RPB) of the at least one continuous band (22) is considerably larger than twice the minimum radius of curvature (RMIN).

Abstract: The invention describes a method and an apparatus removing a plurality of die-cut products from an operating area of a die-cutting apparatus having multiple dies. The die-cut products are simultaneously picked up at a pick-up point in the operating area. Then they are simultaneously moved to a delivery point outside the operating area. At the delivery point, the die-cut products are released simultaneously. The operations of picking up moving and releasing are carried out in such a manner that the die-cut products at the delivery point are situated at substantially at the same position with respect to one another as those which they adopt at the pick-up point.

Abstract: 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.

Abstract: The present invention is a transverse element for a drive belt for a continuously variable transmission. The drive belt includes two endless carriers, wherein transverse elements are continuously arranged along the entire length of the carriers. The transverse elements are on both sides provided with recesses for at least partially receiving the carriers. Furthermore, the transverse elements include supporting surfaces for supporting the carriers, as well as pulley sheave contact surfaces for the purpose of contact between the transverse elements and pulley sheaves of the continuously variable transmission. A convex transition region which has two parts having different curvature radii is situated between a supporting surface and a pulley sheave contact surface, wherein a first curvature radius of a first part at the side of the supporting surface is larger than a second curvature radius of a second part at the side of the pulley sheave contact surface.

Abstract: Belt for use in a continuous variable transmission, including an endless carrier for taking up tensile forces within the belt, and a plurality of transverse elements provided moveable in the longitudinal direction along the carrier, the elements provided with at least one saddle surface for contacting the carrier, the saddle surface defining an ultimate mutual position of the carrier and the elements relative to each other within the belt in a radial direction, with a tapered lower element part including a rocking edge and with an upper element part extending radially above the rocking edge and beyond the carrier, at least when the carrier and the saddle surface are in mutual contact.

Abstract: A roller vane pump, in particular suited for pumping fluid in a continuously variable automatic transmission of a motor vehicle, is provided with a pump housing (12) accommodating a carrier (4) rotatable around a central axis (4a) of the carrier in a direction of rotation by a pump shaft (5), on the periphery of the carrier (4) there is provided a slot (6), which extends in a substantially radial direction and accommodates an essentially cylindrically shaped roller element (7) having a roller diameter (DR) for interaction with a radially inner cam surface (2a) of a cam ring (2) encompassing the carrier (4) in radial direction. The cam surface (2a) is located at a radial distance (R) from the central axis (4a) that varies in dependence on an angular rotation (&phgr;) according to a cam curve (R{&phgr;}).

Abstract: 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.

Abstract: A driving belt for use in a continuously variable transmission includes two V-shaped pulleys. The driving belt includes a carrier of two endless band packages lying side by side, on which transverse elements are disposed. Each transverse element includes two recesses positioned opposite each other for receiving the band packages, so that a part of the transverse element is positioned between the band packages. Each recess includes an inside surface facing towards the band package, wherein the portion of the inside surface that is formed by the aforesaid part of the transverse element includes an acute angle, near the underside of the band packages, with the plane in which the band packages lie.

Abstract: Method for deburring and/or rounding a side face of a thin-sheet and annular metal element (1), such as a ring element (1) for use in a push belt for continuously variable transmission, wherein the ring element (1), in a machining step, is received in a device for electrochemical machining (“ECM”) of the ring element (1), an electrode (5) being positioned in the device opposite an axially oriented side face (3) of the ring element (1), which electrode (5), as seen in a thickness or radial direction of the ring element (1), has a dimension which is at least twice as great as a dimension of the ring element (1) in the said thickness direction.

Abstract: A continuously variable transmission includes a set of pulleys mounted on respective pulley shafts (35, 36) and mounted with an endless transmission element for transmitting rotational movement from one pulley to the other, whereby the pulleys are incorporated in the transmission pre-mounted on an common support plate (22). The transmission thereby is provided with a favorable produced housing.

Abstract: A continuously variable transmission (1) includes a rotatable drive pulley (2) and a driven pulley (5), each of which having an axially displaceable sheave (4, 6) for transmission ratio control by varying the running radii of a torque transmission belt (8) running between the sheaves (3, 4; 6, 7); and a lubrication nozzle (9) having an output (O1, O2) for supplying a lubricating fluid to a midpoint (M1, M2) at the inner side of the belt (8), whereby at least one output (O1) of the lubrication nozzle (9) at the driven pulley (5) is directed to the midpoint (M1) of the transmission belt (8) while running in a transmission ratio (TOP) area, wherein a maximum power is transmitted by the transmission belt (8) The belt (8) is thus effectively cooled at a radial position within the driven or secondary pulleys (2), where due to a maximum power loss the generated heat is maximal.

Abstract: A hydraulic controller (10, 10a, 10b) comprising a power part that is supplied by a high-pressure pump (42), and a control part and connecting lines is proposed. According to the invention, a low-pressure pump (64) is provided for the control part. This has an advantageous effect on leakage and fuel consumption.

Abstract: A continuous variable transmission includes a pair of pulleys forming V-shaped grooves for receiving an endless transmission element for transmitting torque between the pulleys. Each pulley includes at least one axially movable sheave which may be urged axially in the direction of the transmission element by an urging element effecting a clamping force between the sheave and the transmission element, the effected clamping force corresponding to a force sufficient for transmitting a torque to be transmitted by at least virtually slipless friction between the pulley sheaves and the belt, increased by a safety margin expressed as a factor corresponding to a percentage of the torque to be transmitted throughout a major part of the range of torques transmittable to the relevant transmission.

Abstract: The invention relates to a transmission (1), in particular set of pulleys therefor, comprising a set of pulleys, in which at least one disc is axially displaceable and provided with cylinder piston means (12), which cylinder/piston means (12) comprise at least one pressure chamber (13) with radial walls and concentric cylinder walls and at least one of said radial walls (18; 24) of the pressure chamber is secured to one of said concentric cylinder walls (20) by means of an immovable fit, and which wall (18; 24) near to said fit is produced with a resiliently hingeable feature, in which the hinging feature is realised with the inclusion of an axially extending sleeve like foot part (30), integral to said wall, and with both axial faces thereof extending uninterrupted smoothly up to the lower end part of the wall.

Abstract: A continuously variable transmission includes a primary pulley, a secondary pulley, a drive belt wrapped around the pulleys at a variable radial position between discs of each pulley and a transmission control part for controlling a transmission torque ratio between a maximum and a minimum value (Rmax, Rmin), whose quotient defines a transmission ratio coverage, which is variable in dependence on the rotational speed of the primary pulley.