Abstract:
Ein Kegelscheibenpaar enthält eine Eingangswelle, die starr mit einer Festscheibe verbunden ist, eine auf der Welle axial verschiebbar und drehfest angeordnete Wegscheibe, eine Drehmomentfühleinrichtung mit einer starr mit der Welle verbundenen Formfläche und einer weiteren Formfläche, die starr mit einem die Welle umgreifenden, relativ zur Welle axial verschiebbaren und verdrehbaren Fühlkolben verbunden ist, welche Formflächen derart ausgebildet sind, dass sich bei einer Änderung des zwischen dem Fühlkolben und der Wegscheibe wirksamen Drehmoments die axiale Stellung des Fühlkolbens durch Abwälzen von zwischen den Formflächen angeordneten Wälzkörpern auf den Formflächen ändert, welcher Fühlkolben an seiner von der Wegscheibe abgewandten Seite einen durch in Umfangsrichtung voneinander beabstandete, axial gerichtete Arme aufweist, die mit axialen Verzahnungen versehen sind, die mit einer axialen Umfangsverzahnung eines auf der Welle drehbar und im Wesentlichen axial unverschiebbar gelagerten, drehantreibbaren Eingangsrades in Eingriff ist, und einen Stützring, der auf der den Verzahnungen der Arme radial gegenüberliegenden Seite in Anlage an den Armen ist und die Verzahnungen der Arme in Eingriff mit der Umfangsverzahnung des Eingangsrades drängt.
Abstract:
A series inline continuously variable transmission (SICVT) in which two series coupled continuously variable transmissions are in an inline configuration is provided to be used in rear-wheel drive vehicles. Two sets of pulleys are connected in series to square the reduction and bring the input and output shafts inline. The input and output pulleys are configured for actuation by hydraulic pistons for shifting, while the idler pulley set may be implemented without a need for actuation. Displacement of the actuated pulleys results in the square of the original ratio change. The SICVT is compact and efficient, and can be used in all types and sizes of vehicles including gasoline and diesel powered vehicles and electric, fuel cell electric, and all types of hybrid electric vehicles. Additional CVT stages can be provided for further reduction in size.
Abstract:
A transmission (18/20) includes a housing (16) and a gear assembly (21) supported by the housing. The gear assembly includes a shaft (23) carried by the housing, a bull gear (24) attached to the shaft, and a helical gear shaft (25) carried by the housing. The helical gear shaft incorporates a helical gear (26) operatively connected to the bull gear. The transmission can be either a single-speed transmission or a variable-speed transmission. The single speed transmission employs a pulley (130) attached to the helical gear shaft, and a belt (140) wrapped around the pulley. The variable-speed transmission employs a driven pulley (230) supported by the helical gear shaft, an idler pulley (270) pivotably attached to the housing, and a belt (240) wrapped around the driven pulley and the idler pulley.
Abstract:
To provide a continuously variable transmission and a control method thereof, allowing for control of the axial position of a movable sheave without a sensor for measuring the axial position of the movable sheave on a rotational shaft and for stable control with the movable sheave being held in position, without the increase in the size of mechanisms and power consumption.A continuously variable transmission in which, on a rotational shaft 1 thereof are mounted a fixed sheave 2 positioned in the axial direction and a movable sheave 3 slidable axially, so as to face each other, a motor is provided for driving the movable sheave, and a slide driving means 16 is provided for sliding the movable sheave 3 axially by the rotation of the motor, characterized in that: the motor is a step motor 6, and the step motor 6 and the slide drive means 16 are mounted coaxially with the rotational shaft 1.
Abstract:
A variable speed transmission includes an actuator mechanism that can be remotely activated to cause engagement of a drive unit and to subsequently vary the speed of the drive unit using the same activation mechanism. The variable speed transmission can include a first pulley that has a first and second face that are movable relative to each other by activation of the actuator mechanism. When the first and second faces of the first pulley are located in a first position, a belt located on the first pulley remains motionless. The first and second faces can be moved by the actuator mechanism into a second position where the first and second plates engage the belt with enough frictional force to cause the belt to start moving about the first pulley. The first and second faces of the first pulley can also be moved between the second position and a third position such that the space between the faces becomes smaller. As the space between the faces becomes smaller, the belt moves outward and away from the rotational axis of the pulley, thus moving about the axis faster as the space between the faces gets smaller.
Abstract:
An apparatus is described to separate oil from a gas in an internal combustion engine. The apparatus includes a rotatable member adapted to be rotatably driven by the internal combustion engine and ahousing affixed to the rotatable member. At least one inlet hole is disposed through one of either the rotatable member or the housing, permitting oil-containing gas to pass therethrough. At least one outlet hole is disposed through one of either the housing or the rotatable member, permitting the gas to exit therefrom. At least one labrynthine passage extends between the at least one inlet and the at least one outlet so that, as the rotatable member and housing rotate, the oil-containing gas within the labrynthine passage is subjected to centrifugal forces. The forces cause at least some of the oil to be removed from the gas as the gas flows from the at least one inlet hole to the at least one outlet hole. A decompressor is also described.
Abstract:
A continuously variable transmission (1), in particular for motor vehicles, provided with two adjustable pulleys (2, 3), each comprising a pair of mutually displaceable essentially frusto-conical pulley sheaves (21, 22, 31, 32) having a radial dimension provided on a pulley shaft (20, 30), 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 (10) 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. According to the invention, 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.
Abstract:
A supercharged four stroke internal combustion engine. The engine includes a power take off housing located on one end of the crankcase. A supercharger for boosting air intake to an air intake manifold is mounted to the power take off and operatively connected to the crankshaft within the power take off housing. A personal watercraft having a supercharged engine is also disclosed.
Abstract:
A four stroke internal combustion engine is disclosed having a lubrication system for circulating lubricant within the engine. The engine further includes a system for separating lubricant from blow-by gas within the crank case.
Abstract:
A four stroke internal combustion engine is disclosed having a power take off housing located at one end of the engine. A crankshaft is operatively connected to a drive shaft and the cam shaft within the power take off housing. Furthermore, the crankshaft is operatively coupled within the power take off housing to at least one of a generator, an engine starting mechanism, a balance shaft, and a supercharger.