Electrode assemblies easily impregnated with an electrolyte are provided. A sealing tape attached to the outer circumference of the electrode assembly comprises a material having an affinity for the electrolyte. Alternatively, the entire sealing tape or a portion of the tape is coated with the material. In another alternative, the surface of the sealing tape is rough, thereby improving wetting of the tape by the electrolyte and diffusion of the electrolyte into the tape. In another embodiment, first and second insulating plates comprise a material having an affinity for the electrolyte. In another alternative, the insulating plates comprise a mixture of a material having an affinity for the electrolyte and polypropylene or polyethylene. Alternatively, the surfaces of the insulating plates are coated with the material or with a surfactant that reduces the surface tension of the electrolyte.

Lithium Ion Secondary Battery

A drive belt tensioner assembly for a motor-generator unit is comprises a motor-generator unit having a rotatable drive pulley, configured to engage a drive belt, extending therefrom. A drive belt assembly housing is fixed to the motor-generator unit and has an inner surface defining an opening through which the rotatable drive pulley of the motor-generator unit extends. A tensioner mounting ring is mounted to, and rotatable with respect to, the drive belt assembly housing. A tensioner pulley is mounted for rotation on the tensioner mounting ring and is configured to engage the drive belt on a side of the motor-generator unit drive pulley. A biasing assembly having a first end mounted to the tensioner mounting ring and a second end mounted in a fixed relationship to the motor-generator unit exerts a biasing force on the tensioner mounting ring to rotate the ring and the tensioner pulley against the drive belt.

Drive belt tensioner for motor generator unit

A belt tensioner (20) for a belt drive (1) is designed to connect an engine shaft (6) of an internal-combustion engine (2) to a reversible electric machine (4) which has the function of starting motor and current generator; the belt tensioner (20) comprises a fixed part (21) and a pair of arms (23, 24), hinged on a common pin (31) carried by the fixed part (21) and provided with respective idle pulleys (25, 26), and a spring (27) , which forces the two arms (23, 24) towards one another so as to load the pulleys (25, 26) elastically against respective branches (15a, 15b) of the belt (15). The two arms (23, 24) of the belt tensioner are provided with respective first arrest elements (37, 47), which are designed to interact with the fixed portion (21) to define respective positions of arrest of the arms themselves under the action of the spring (27) , and respective second arrest elements (38, 48), which are designed to interact with the fixed portion (21) to define respective positions of end-of travel of the arms (23, 24) under the action of the pull of the belt (15) .

A two-arm belt tensioner for a belt drive

A belt tensioning device for a belt drive which comprises a driving machine with a driving belt pulley drivable by a driveshaft around a driving axis, and a plurality of further belt pulleys and with an infinite belt which is wrapped around the driving belt pulley and the further belt pulleys wherein the belt tensioning device comprises a housing in which two tensioning arms are supported so as to be pivotable around a common pivot axis, in which tensioning arms there are supported tensioning rollers with axes of rotation extending parallel to the driving axis, wherein the tensioning arms are supported relative to one another by spring means, wherein, with the driving belt pulley mounted at the driving machine, the housing can be mounted in that, in an annular region surrounding the driveshaft of the driving belt pulley, the housing is contact-free relative to the driving machine.

Belt tensioning device for being used with a starter generator

A tensioner for generating tension in a power-transmitting belt (12, 12A, 112, 112A) is provided. The tensioner includes a base (22, 22A, 122, 122A), which may be secured to an engine (10, 10A, 110, 11 OA), and an arm (24, 24A, 124, 125, 124A, 125A) that is movably attached to the base. A pulley (26, 26A, 126, 127, 126A, 127A) is rotatably attached to the arm for engaging the belt. A spring (28, 28A, 128, 128A) is operatively connected to the arm (24, 24A, 124, 125, 124A, 125A) and the base (22, 22A, 122, 122A) for urging the arm to move relative to the base in a first direction. When the arm is moved in the first direction, the pulley (26, 26A, 126, 127, 126A, 127A) is moved into engagement with the belt (12, 12A, 112, 112A) with a force to tension the belt. The tensioner (114, 14A, 114, 114A) further includes a stop (30, 30A, 130, 131, 130A, 131A) that is adjustably positioned on the base (22, 22A, 122, 122A) to limit the movement of the arm (24, 24A, 124, 125, 124A, 125) in a second direction. The position of the stop (30, 30A, 130, 131, 130A, 131A) on the base may be automatically adjusted by the spring (28, 28A, 128, 128A) during installation of the tensioner.

Belt tensioner having an automatically adjustable travel stop

A tensioner (14, 114) for an endless power transmission belt, the belt (12) being driven about a sheave. The tensioner may comprise a base (22, 122), a resilient device (46, 146), and first and second arms (24, 26; 124, 126) pivotally coupled for movement in an opened and a closed direction. The tensioner (14, 114) may also comprise first and second pulleys (25, 27; 125, 127) rotably coupled to the and second arms (24, 26; 124, 126), the resilient device (46, 146) biasing the arms in the closed direction in which the first and second pulleys (25, 27; 125, 127) apply tension to the belt (12). The tensioner (14, 114) may also comprise first and second stops (28, 30; 128, 130) positioned outside the arms on the base (22, 122) to limit the movement of the arms in the open direction in response to an increase in tension in the belt.

Adaptive belt tensioner system for control of reversible torque load pulley

A belt tensioner for a power transmission belt may be provided that operates on an endless path and that utilizes asymmetric motion control The belt tensioner may have an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots on the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt The tensioner also may have a fluid filled chamber inside a portion of the drum section of the arm and a valve pivotally attached to the tensioner so that the valve extends across the fluid containing chamber

Joseph W. Zamm

Papers

Adaptive belt tensioner system for control of reversible torque load pulley

Hydraulic asymmetric damped belt tensioner