Based on further ingenuity, it is possible to support a heavy and large electric motor on an engine body with sufficient strength while driving the electric motor with a belt without slipping, thereby providing a more streamlined industrial hybrid engine. The industrial hybrid engine is provided with an endless rotation band wound around a drive pulley of a crankshaft and a motor pulley of an electric motor for motive power. The electric motor is attached to an engine case in a position-fixed state using one support bracket. The support bracket includes first and second support portions for attaching the electric motor, and attachment portions positioned between the first and second support portions for attaching the electric motor to the engine case.

A variable force tensioning assembly creates and maintains a tension force on an endless loop used to transmit power. The variable force tensioning assembly includes a body having a cylinder defining a cylinder inner diameter. An outer piston is disposed substantially within the cylinder and slidable therewithin. The outer piston includes an outer piston tube and a chamber divider extending through the outer piston tube. The outer piston and the body define a low rate portion. An inner piston is disposed at least partially within the outer piston tube and is slidable therewithin. The inner piston defines a high rate portion and acts with the outer piston against the body to create a variable force to push against the endless loop to maintain a constant tension in the endless loop.

A method and apparatus that circumvents belt path obstacles in a Corvette C8 engine for transferring auxiliary power from the engine crankshaft output pulley to a supercharger input pulley by using a drive path transfer apparatus including a transfer input pulley located in the same plane as the crankshaft pulley and connected to it with the main drive belt, a transfer output pulley in a second plane spaced inboard of the first plane including the supercharger pulley, a secondary belt joining the transfer output pulley and the supercharger pulley, and a coupling shaft having the transfer input pulley at one end and the transfer output pulley at the other end, the coupling shaft being rotationally mounted in a two-piece installable bracket secured on the engine block in a location to the side of the obstruction, thereby transferring power from the engine to the supercharger without interference from the obstruction.

To provide a chain guide assembly frame capable of efficiently collecting the oil that adhered to various parts of the chain guide assembly, and guiding the collected oil to predetermined locations, to allow efficient use of oil, with a simple structure. The chain guide assembly frame includes driven sprocket holding portions, a fixed chain guide, and a pivoting chain guide holding portion on a main body. A drive sprocket holding portion is provided at a position lower than the driven sprocket holding portions. The main body includes a concave and/or convex oil passage that extends from an upper part toward a lower part to guide the oil toward above the drive sprocket holding portion.

To provide a simple-structured chain guide assembly frame capable of reliably maintaining a correct positional relationship between a driven sprocket and a sprocket holding portion without the possibility of driven sprocket detachment. The chain guide assembly frame includes a main body having a fixed-guide-side sprocket holding portion and a pivoting-guide-side sprocket holding portion. The fixed-guide-side sprocket holding portion includes a first fixed-guide-side support portion that supports a driven sprocket at a first contact point, and a second fixed-guide-side support portion that supports the driven sprocket at a second contact point located more outside than the first contact point. When the driven sprocket is in an erected state in which the driven sprocket is supported at the first contact point and second contact point, the vector of gravity acting on the gravity center of the driven sprocket points between the first contact point and second contact point.

A powertrain system is described, and includes an internal combustion engine including a crankshaft and an electric machine including a rotatable shaft, wherein the rotatable shaft is coupled to a motor pulley. A torque converter includes an impeller and a pump, wherein the pump is coupled to an outer sheave. An off-axis mechanical drive system includes the outer sheave of the torque converter rotatably coupled to the motor pulley of the electric machine. The electric machine is coupled to the pump of the torque converter via the off-axis mechanical drive system, and the crankshaft is coupled to the pump of the torque converter via a clutch.

A motorcycle with a swing arm element pivotably coupled to a holding element of the motorcycle via a rotary bearing is provided with a tensioning element. The motorcycle also includes a pulling member which engages two gear elements which are each spaced from the rotary bearing in a torque-transmitting manner. The first gear element is rotatably mounted separately from the swing arm element, and the second gear element is rotatably mounted on the swing arm element. The tensioning device for tensioning the pulling member is mounted rotatably and/or in an axially displaceable manner relative to the two gear elements on the swing arm element or on a frame of the motorcycle. The tensioning device includes at least two levers pivotable relative to one another, and a tensioning element which biases the levers against the pulling member to maintain consistent tension in the pulling member.

A method for determining belt wear in a belt drive, wherein the belt is loaded with a defined torque and the rotation angle of a pulley is determined.

A pulley assembly for a steering assembly includes a motor disposed within a motor housing and having a motor shaft extending therefrom. The pulley assembly also includes a motor face plate having a motor pilot component extending therefrom in the same direction as the motor shaft extends away from the motor, the motor shaft extending through a hole in the motor face plate. The pulley assembly further includes an idler pulley post protruding from the motor housing and through the motor face plate in the substantially same axial direction of the motor shaft, the idler pulley post being radially offset from the motor shaft. The pulley assembly yet further includes a housing flange having a pilot bore to accommodate at least a portion of the motor pilot and the idler pulley post.

An object of the present invention is to provide a tensioner lever that allows for reduction of the number of components and the weight, while being able to prevent vibration and noise during the running of the chain. The tensioner lever according to the present invention is configured such that a lever body rotatably supported on an attachment surface is urged to rotate toward the chain by the resilient force of a coil spring. The coil spring includes a pressing arm extending from one end of a helical part and contacting the lever body, and a support arm extending from another end of the helical part and supported by the attachment surface. The lever body includes an engagement portion configured to allow the support arm of the coil spring to be hooked thereon by resilient deformation, and to removably engage therewith by rebound resilience of the coil spring.