Provided is a pressing device for toroidal continuously variable transmission capable of reducing hysteresis that occurs between torque and pressing force. An intermediate sliding member 27 is provided in at least one location of a portion between an end surface on the outside in the radial direction of the retainer 13 of the roller 14 arranged on the outermost side in the radial direction and an inside surface of the pocket 25 on the outside in the radial direction, and a portion between an end surface on the outside in the radial direction of the retainer 13 of one roller 14 of adjoining rollers 14 in the radial direction and an end surface on the inside in the radial direction of the retainer 13 of another roller 14. As a result, the contact area of a sliding contact portion 32 is made smaller than in a case where an intermediate sliding member 27 is not provided.

Provided is a toroidal continuously variable transmission that can create a jet of oil resistant to the influence of wind generated by rotation of a power roller, thereby feeding a sufficient amount of oil to the power roller to cool the power roller with the oil; and a drive mechanism-integrated electricity generation apparatus for an aircraft, the electricity generation apparatus including the toroidal continuously variable transmission. The toroidal continuously variable transmission includes a discharge structure including an outlet that discharges an oil. The discharge structure includes first and second oil passages connected with each other inside the discharge structure, and arranged such that the oil flowing through the first oil passage and the second oil passage collide with each other in the vicinity of the outlet and that a jet of oil discharged from the outlet forms a flattened shape extending along a rotational direction of the power roller.

Disclosed is a toroidal variable speed traction drive including a driving disc and a driven disc, with a plurality of roller assemblies in between. Each roller assembly has a toroidal rolling surface to contact the toroidal surface of the corresponding disc, and a conical surface, for engaging the other roller in the assembly. An engagement is provide to prevent or reduce axial movement between the first and second rollers along the conical surface.

A toroidal variable speed traction drive includes a driving disc and a driven disc. The discs have a common axis of rotation. The inner face of each disc is formed with a negative shape of a toroid. The drive further includes a plurality of roller assemblies interposed between the discs each roller assembly including a roller. The discs are urged together against the interposed roller assemblies by a clamping force. Each roller assembly is connected to a corresponding rotatable trunnion. The trunnion applies a steering force to the corresponding roller assembly at a point relative to the corresponding roller assembly; the applied steering force causing the roller of the corresponding roller assembly to steer and adopt different contact points. The point at which the steering force is applied is located offset from the trunnion rotational axis at a fixed distance.

Traction transmission having a first and a second component transmission (26a, b) which are of mirror-symmetrical construction with respect to one another and are arranged axially adjacently in a housing (12), in each case comprisingan axially inner drive friction disc (28a, b) and an axially outer complementary friction disc (32a, b) which are arranged coaxially and can be rotated relative to one another about a transmission central axis, anda set of friction rollers (40) which make non-positive contact between the friction discs (28a, b, 32a, b) and are mounted such that they can be rotated about in each case one roller axle (44), wherein the roller axles (44) are pivotably mounted in a manner which is spaced apart radially from the transmission central axis on a star-shaped spider (38a, b) which can be moved ax Lilly in relation to the transmission central axis, wherein the spiders (38a, b) are arranged on a common spider sleeve (50) and are coupled to one another at a variable spacing via an axially extending thread pairing (52), whereinthe complementary friction discs (32a, b) are arranged fixedly on a common output shaft (34) which is mounted in the housing such that it is fixed axially and can be rotated, the spacing of the drive friction discs (28a, b) from one another can be varied by means of a spacing setting device (60), andthe spider sleeve (50) is mounted such that it can be displaced axially relative to the housing (12), wherein the first spider (38a) which is assigned to the first component transmission (26a) is connected fixedly to the housing (12) so as to rotate with it, the second spider (38b) which is assigned to the second component transmission (26b) can be rotated relative to the housing (12) by means of an angular position setting device (54b, 58), and the thread pairing (52) which couples the spiders (38a, b) is set up in such a way that a relative rotation of the spiders (38a, b) brings about a change in the spacing thereof.

A continuously variable transmission includes an input shaft and a shaft journal eccentrically connected thereto on which a transmission element is bearing supported, as well as an output shaft which is connected to the transmission element via a constant velocity joint. The transmission further includes a housing and a pulley accommodated in it having two axially displaceable pulley wheels spaced apart from each other and which are fixed in the housing in the direction of rotation, as well as an adjusting mechanism for varying the space between the two pulley wheels. The transmission element is located between the two pulley wheels and is formed by a ring that rolls down in the pulley on rotation of the input shaft.

Methods, systems, and devices describe bi-triaxial photoconductive switch modules that that eliminate the need for external DC blocking capacitors, while providing a highly compact structure that can produce bipolar output waveforms conducive to feeding to radio-frequency (RF) devices, such as antennas. Some implementations of the disclosed bi-triaxial photoconductive switch modules utilize unified cast-in-place capacitors that can be designed with an appropriate geometry, volume and orientation to provide desired energy storage capacity while eliminating or reducing parasitics.

An aircraft cabin blower system comprising a transmission and a compressor is disclosed. The system has a forward configuration in which the compressor is drivable in use via the transmission. The transmission comprises a toroidal continuously variable transmission giving selectively variable control over the rate at which the compressor is driven.

The purpose of the invention is to achieve a structure that can be easily made smaller while maintaining transmission efficiency and durability. An inner disk 8b is supported around a sleeve 5a so as to be able to rotate relative to a rotational shalt 2b and the sleeve 5a by way of a pair of ball bearings 33 having a lace-to-face type contact angle. A pair of conical disc springs 36 are held between the inner face of an outer ring 35 of each of the pair of ball bearings 33 and an inner diameter side step face 30 on each of a pair of disk elements 7a, and a preload in the axial direction is applied to the pair of ball bearings 33 by elastically pressing the outer ring 35 to the outside.

In a continuously variable transmission including: a first transmission unit including a first input disc and a first output disc disposed coaxially and a power roller tiltably interposed between these discs; and a second transmission unit disposed coaxially with the first transmission unit, including a second input disc and a second output disc disposed coaxially and a second power roller tiltably interposed between these discs, and disposed such that a back surface of the second input disc is opposed to a back surface of the first input disc, a tubular back surface cylinder wall is provided on each of the back surfaces of the first input disc and the second input disc so as to project therefrom.