An engine device for a vehicle is configured such that a clutch pulley may be rotated together with a crankshaft or may not be rotated depending on the application of electric power. Therefore, when an auxiliary drive system does not need to rotate, the clutch pulley is prevented from rotating. Accordingly, torque loss attributable to dispersion of torque to the auxiliary drive system is minimized As a result, fuel efficiency is improved, and engine output is increased.

One embodiment is a system comprising an internal combustion engine including an output shaft, a pulley system structured to be driven by the output shaft, a first alternator and a second alternator structured to be driven by the pulley system, and an electromagnetic clutch integrated within one of the pulley system, the first alternator and the second alternator and structured to selectably couple and decouple at least one of the first alternator and the second alternator from the output shaft. The system includes a controller in operative communication with the internal combustion engine system and structured to evaluate power demand and power production capability parameters of the system and to control the electromagnetic clutch to engage or disengage in response to the evaluation.

One embodiment is a system comprising an internal combustion engine including an output shaft, a pulley system structured to be driven by the output shaft, a first alternator and a second alternator structured to be driven by the pulley system, and an electromagnetic clutch integrated within one of the pulley system, the first alternator and the second alternator and structured to selectably couple and decouple at least one of the first alternator and the second alternator from the output shaft. The system includes a controller in operative communication with the internal combustion engine system and structured to evaluate power demand and power production capability parameters of the system and to control the electromagnetic clutch to engage or disengage in response to the evaluation.

A drive device for a washing machine includes a motor, a washing shaft, a dewatering shaft sleeve sleeved on the washing shaft, the washing shaft is coaxially installed in a rotor of the motor, and further includes a planetary gear speed reduction mechanism built in the rotor and the planetary gear speed reduction mechanism includes: a sun-gear sleeve sleeved on the washing shaft and fixedly connected to the rotor; a planetary gear assembly, including a planetary gear meshing with the sun-gear sleeve, and the planetary gear assembly is fixedly connected to the washing shaft via a planetary carrier; the number of the planetary gear is plural, and the multiple planetary gears are evenly distributed about the sun-gear sleeve; and an internally toothed ring gear meshing with the planetary gears and fixedly connected to the dewatering shaft sleeve.

A drive device for a washing machine includes a motor, a washing shaft, a dewatering shaft sleeve sleeved on the washing shaft, the washing shaft is coaxially installed in a rotor of the motor, and further includes a planetary gear speed reduction mechanism built in the rotor and the planetary gear speed reduction mechanism includes: a sun-gear sleeve sleeved on the washing shaft and fixedly connected to the rotor; a planetary gear assembly, including a planetary gear meshing with the sun-gear sleeve, and the planetary gear assembly is fixedly connected to the washing shaft via a planetary carrier; the number of the planetary gear is plural, and the multiple planetary gears are evenly distributed about the sun-gear sleeve; and an internally toothed ring gear meshing with the planetary gears and fixedly connected to the dewatering shaft sleeve.

An image forming apparatus includes an output shaft including a columnar part and a D cut part connected to the columnar part and having a D section, and an electromagnetic clutch including a cylindrical member fitted to the output shaft. The image forming apparatus further includes a key member. The key member includes a conductive member. When the D cut part of the output shaft is employed as an insertion tip side and the output shaft has been inserted to the cylindrical member from one side in an axial direction, the key member is configured to fill a space between the sectional circular part of the inner peripheral surface of the cylindrical member and the D cut part of the output shaft.

An image forming apparatus includes an output shaft including a columnar part and a D cut part connected to the columnar part and having a D section, and an electromagnetic clutch including a cylindrical member fitted to the output shaft. The image forming apparatus further includes a key member. The key member includes a conductive member. When the D cut part of the output shaft is employed as an insertion tip side and the output shaft has been inserted to the cylindrical member from one side in an axial direction, the key member is configured to fill a space between the sectional circular part of the inner peripheral surface of the cylindrical member and the D cut part of the output shaft.

A braking assembly is disclosed comprising a shaft, a brake cage being rotatable with the shaft, an earth ring extending circumferentially around the brake cage, at least one engagement member coupled to the shaft, and a braking mechanism configured for selectively applying a force to the brake cage for slowing or preventing rotational movement of the brake cage such that the shaft rotates relative to the brake cage, and wherein the braking assembly is configured such that when the shaft rotates relative to the brake cage, said at least one engagement member is urged to engage the earth ring such that rotation of the shaft is inhibited or prevented. The earth ring may be replaced with an output shaft such that the assembly operates as a clutch assembly.

A braking assembly is disclosed comprising a shaft, a brake cage being rotatable with the shaft, an earth ring extending circumferentially around the brake cage, at least one engagement member coupled to the shaft, and a braking mechanism configured for selectively applying a force to the brake cage for slowing or preventing rotational movement of the brake cage such that the shaft rotates relative to the brake cage, and wherein the braking assembly is configured such that when the shaft rotates relative to the brake cage, said at least one engagement member is urged to engage the earth ring such that rotation of the shaft is inhibited or prevented. The earth ring may be replaced with an output shaft such that the assembly operates as a clutch assembly.

A damper pulley for a hybrid vehicle with a mild hybrid starter and generator (MHSG) includes: a crank adapter coupled to a crankshaft that is rotated by a driving torque of an engine of the hybrid vehicle; a clutch having a surface mounted on the crank adapter; a pulley body having an interior circumference to which a pulley adapter is coupled; and a bearing interposed between an exterior circumference of the crank adapter and the interior circumference of the pulley body and disposed so as to enable the pulley body to be freely rotatable. The clutch connects the crankshaft to the pulley body through the pulley adapter during an operation condition of the engine, and the clutch releases the connection of the crankshaft to the pulley body through the pulley adapter during the stopping condition of the engine.