Abstract: The present invention relates to a freewheel (2) comprising an inner ring (30), an outer ring (28), a clamping gap (32) between the inner ring (30) and the outer ring (28), a side wall (40) for lateral limitation of the clamping gap (32) and at least one clamping element (34) in the clamping gap (32) which is biased by means of a spring element (66), wherein the spring element (66) is supported or supportable on one side on the clamping element (34) and on the other side on a support projection (70), which is formed by a supporting tongue (74) bent out of the side wall (40) and projecting into the clamping gap (32). In addition, the present invention relates to a method for producing such a freewheel (2).

Abstract: A motor assembly includes a shaft, an electric motor operatively connected to the shaft to drive the shaft in a first rotational direction, a clutch assembly connected to the shaft, and a fan connected to the clutch assembly and configured to supply the electric motor with cooling air. The clutch assembly drives the fan when the electric motor drives the shaft and allows the fan to freewheel in the first rotational direction when the electric motor is not driving the shaft. A method of operating a fan cooled electric motor includes energizing the electric motor to drive a shaft in a first rotational direction using the electric motor and de-energizing the electric motor so that it no longer drives the shaft, allowing the fan to freewheel in the first rotational direction.

Abstract: A clutch unit includes: an input-side transmission member provided to move from an initial position toward a tip of the wedge-shaped space, and an inside tangential line is a tangential line at a contact point of the input-side transmission member and the input-side inner ring member, an outside tangential line is a tangential line at a contact point of the input-side transmission member and the input-side outer ring member, and a segment connects a rotational center of the input-side transmission member with an intersection point between the inside tangential line and the outside tangential line, wherein a wedge angle is an acute angle defined by the segment and the inside tangential line, and a stopper projection is provided at a tip-side position, and a wedge angle formed by the stopper projection is larger than an initial wedge angle at the initial position.

Abstract: An internal combustion engine includes an engine block including a cylinder, a piston positioned within the cylinder, a crankshaft configured to be driven by the piston, a fuel supply system for supplying an air-fuel mixture to the cylinder, an ignition system, an electric starting system including a starter motor, and an ultracapacitor mounted on the engine, the ultracapacitor configured to power the starter motor to start the engine. A related garden tool is also disclosed.

Abstract: The jaw easily allows an insert to be installed or removed. Roughly circular, an insert will be held captive by the pins or semi-circles in the jaw engaging with a groove in the inserts circumference. This will allow the insert to rotate even with a part of its circle not engaged. This will allow an insert to be open ended. This open ended feature will allow this tool to rotate a fastener like a nut even if the end of the threaded portion, perhaps a bolt, cannot be accessed. Once installed the insert will be able to be turned in a circular motion with heavy torque by either manual or powered means.

Abstract: A rotation transmission device is configured such that when an electromagnet of an electromagnetic clutch is energized, a control retainer of a two-way clutch is moved in the axial direction, so that the control retainer and a rotary retainer rotate relative to each other in the direction in which the circumferential widths of pockets decrease, thereby disengaging pairs of rollers from an outer ring and an inner ring. A spring holder is provided which is fixed to an input shaft and kept in abutment with an axial end surface of the inner ring to prevent relative rotation between the control retainer and the rotary retainer in the direction in which the circumferential widths of the pockets decrease, from the neutral position of the rollers. The spring holder is prevented from axial movement to prevent untimely engagement of the two-way clutch. The inner ring is integral with the input shaft.

Abstract: The disclosure relates to a freewheel (4) having a first running ring (28), a second running ring (30), a clamping gap (32) formed between the first and second running rings (28, 30), and at least one clamping element (34) in the clamping gap (32), the clamping gap (32) being assigned a side wall (40; 52) on which the at least one clamping element (34) can be or is supported. According to the disclosure, that side (60; 64) of the clamping element (34) which faces toward the side wall (40; 52) and/or that side (68; 72) of the side wall (40; 52) which faces toward the clamping element (34) is provided with a friction-reducing, wear-reducing and/or corrosion-reducing coating (62, 66; 70, 74) or surface treatment.

Abstract: A one-way pulley for an alternator assembly includes an outer wheel, a clutch assembly, and a spindle. The outer wheel includes an axial hole extending longitudinally therethrough, whereby the axial hole forms an inner surface of the outer wheel. The clutch assembly is disposed within the axial hole of the outer wheel and includes a housing with an outer surface for contacting the inner surface of the outer wheel, and a plurality of rolling elements operable to extend into a pivot hole. The spindle is disposed within the pivot hole of the clutch assembly, the spindle having an outer surface for contacting the plurality of rolling elements and a coupling portion for connecting to a rotor shaft. The outer surface of the clutch assembly housing is fixedly attached to the inner surface of the outer wheel.

Abstract: A unidirectional clutch assembly for coupling an input shaft to a driven shaft, uses an internal shaft positioned within a moveable clutch disc and a stationary clutch disc. The moveable disc has an engaging element for releasably engaging the internal shaft when the moveable clutch disc is rotated in a primary rotation direction by the driven shaft. The stationary clutch disc has a second engaging element for releasably engaging the internal shaft when the internal shaft is rotated relative to the stationary clutch disc in the opposite direction. When the driven shaft rotates in the primary rotational direction, the moveable clutch disc engages, and the stationary clutch disc disengages, the internal shaft, allowing it to rotate freely in the primary rotational direction. When the driven shaft rotates in the opposite direction, the moveable clutch disc disengages, and the stationary clutch disc engages, the internal shaft preventing its rotation.

Abstract: A one-way clutch includes an outer race, an inner race which is spaced from the outer race in an inside diameter direction and arranged concentrically so as to be relatively rotatable, a plurality of engaging members which are arranged between the outer race and the inner race to transmit a torque, and a cage which retains the engaging members. The one-way clutch is provided with volute springs which urge the engaging members in the direction in which the engaging members engage with a cam face of the outer race or the inner race.