Abstract:
The present invention concerns a gear assembly, suitable for a continuously variable transmission, comprising two gear tooth devices (10, 50) making up an imaginary gear wheel with variable pitch diameter, the two gear tooth devices being radially movable and also a continuously variable transmission comprising an input shaft (1), an output shaft (2), a gear-changing shaft (3) and first gearbox shaft (4) comprising a gear assembly according to the invention, a transmission chain (5) and a second gearbox shaft (6) comprising a gear assembly according to the invention or a gear wheel (7), whereby the first gearbox shaft (4) is driven by the input shaft (1), the second gearbox shaft (6) or the gear wheel (7) is driven by the first gearbox shaft (4), and the output shaft (2) is driven by the second gearbox shaft (6) or the gear wheel (7).
Abstract:
A stepless speed change unit comprising a driving pulley (11), a driven pulley (21), a belt (15) entrained between the driving and driven pulleys, a speed change ratio changing mechanism for changing the belt-entraining diameters of both pulleys mutually in opposite directions, and a tensioner device (50) pressing the belt to obtain a belt tension. The tensioner device (50) is provided with a tension roller (51) pressing the slack side of the belt (15) from outside, a swing arm (53) swingably supported by a speed change unit case (6), a link (52) connecting the tension roller (51) to the arm (53), an urging means (54, 55) for urging the arm (53) to swing in a direction for the tension roller (51) to press the belt (15). A support mechanism for the tension roller (51) is of link construction having two or more degrees of freedom, whereby in all speed change ratios, the tension roller (51) can be automatically moved to a position where it does not interfere with the pulleys (11, 21).
Abstract:
A refrigerant system is provided with a variable speed drive for at least one of its fluid-moving devices, wherein the variable speed drive is provided by an automated mechanical drive. In the disclosed embodiment, one of the pulleys for driving the fluid-moving device has a variable diameter to vary the speed at which the fluid-moving device is driven. The pulley may include two plates that are biased in one direction by a spring or permanent magnet force, and in an opposed direction by a hydraulic or electro-magnetic force. A control adjusts the amount of hydraulic or electro-magnetic force delivered to the plates to achieve a desired speed for the fluid-moving device.
Abstract:
Variable diameter pulley of continuously variable transmission for high-power vehicles and the continuously variable transmission system relate to continuously variable transmission, wherein the pulley (11-14) is cone-shaped. On the surface there are several sector shaped curved surfaces (61, 62) and conical surfaces (51, 52) distributed alternately, and the generators of the sector shaped curved surfaces are in parallel with the generators of the conical surfaces. The angles between any generator of the sector shaped curved surfaces and the centre line of the cone pulley are same. Said sector shaped curved surface is concave or convex shaped curved surface which has a different shape from the conical surfaces. Two variable diameter pulleys (11-14) are assembled on the same spline shaft (3, 8) in such a way that the sector shaped curved surfaces and conical surfaces of the two pulleys are set respectively face to face.
Abstract:
The inventive transmission unit has a housing (5), a drive shaft (1), an output shaft, a continuous transmission (4) and a starting element. Said starting element is a multi-disk clutch (6) with rotation pressure compensation, the piston (11) being situated with the corresponding pressure compensation chamber (12) on the side of the starting element that rotates when the automobile engine is running.
Abstract:
In one example, a transmission is provided that includes a sheave of selectively variable configuration, a driven member configured to engage the sheave, and a plurality of drive members configured for radial movement to selectively engage the driven member. The transmission may be operable in one or more of the following modes: traction mode, integer mode, I N mode, and infinite mode.
Abstract:
Заявленная полезная модель относится к машиностроению. Клиноременный вариатор содержит установленные на валах ведущий и ведомый шкивы, каждый из которых состоит из двух подвижных в горизонтальной плоскости полушкивов, на которых выполнены сквозные продольно-радиальные прорези для возможности стыковки (входа) полушкивов друг в друга, и приводной ремень. При этом каждый из полушкивов выполнен в виде одной детали, состоящей из трех тел вращения, имеющих общую ось и соединенных между собой как одно целое, два из них представляют собой разновеликие полые усеченные конусы, направленные в разные стороны и соединенные меньшими основаниями, а третье тело вращения представляет собой ступицу, соединенную с соответствующим из валов с возможностью движения вдоль последнего. Техническим результатом, достигаемым заявленной полезной моделью, является повышение надежности и увеличение срока эксплуатации.
Abstract:
Actuador de un elemento de trabajo (14), tiene una plataforma especial (23), contiene un sistema de control y un mecanismo de transmisión variable. El mecanismo para el movimiento progresivo a lo largo del eje 5(12) está conectado con cada uno de los elementos cónicos deslizantes (3) en un mecanismo de transmisión variable. El cambio de la relación de transmisión entre el motor (18) y el elemento de trabajo (14) se realiza automáticamente. Este cambio es realizado una vez antes de la ejecución del movimiento del elemento de trabajo (14). Este cambio es realizado 10continuamente en tiempo de ejecución del movimiento del elemento de trabajo (14).
Abstract:
A continuously variable transmission system comprises a continuously variable transmission having two pulley sets each with two discs defining a V-shaped groove, said pulley sets being provided with a respective electrically operated actuator for varying the width of the corresponding grooves, and a clutch. An integrated starter-generator is provided and the clutch and the integrated starter-generator are carried out as a unity connected to the ingoing shaft of the continuously variable transmission. The clutch is an electromechanical gear clutch including a drive gear set (4) and a control gear set (5), each having pinion gears (8, 9), a carrier (10, 11) and a ring gear (12, 13). An electric motor (14) is used as a control means for influencing the rotation of the control gear set (5), so that drive torque can be transmitted by output shaft (3).
Abstract:
The present invention relates to a continuously variable transmission that steplessly changes gear ratios by changing pulley width, and more particularly, to a continuously variable transmission capable of increasing driving power through increasing the area of contact between a pulley and belt, and capable of quickly changing gear ratios by being able to simultaneously move each pair of conical wheels constituting a driving pulley and a driven pulley, respectively. The continuously variable transmission according to the present invention is provided with a driving pulley and a driven pulley formed with a pair of conical wheels mounted on a rotational axis to face one another and be capable of axial translation, and a belt wound and connected between the driving pulley and the driven pulley, whereby gear ratios are steplessly changed by changing the widths of the driving pulley and of the driven pulley. The transmission further comprises: gear change linkages (50, 50') connected between the driving pulley and the driven pulley for adjusting a gear ratio by axially translating each of the conical wheels constituting the driving pulley and the driven pulley; and a gear change actuator (60) connected to the gear change linkages (50, 50') for receiving a gear change input from the outside and actuating the gear change linkages (50, 50').