A motor may include a rotor; a stator disposed on an outer peripheral side of the rotor; and a resin sealing member covering the stator. The stator may include a stator core; a coil wound around the stator core; and a connector disposed on an outer peripheral side of the stator core. The resin sealing member may include a connector sealing part protruding to the outer peripheral side of the stator core and covering the connector. The connector may include a connection opening through which an external connector is attached and detached, and the connection opening protrudes in an axial direction of the rotor from the connector sealing part and is opened in the direction of the axis.

In one an exemplary aspect of the present disclosure, an engine includes a drive shaft; an electric machine including a stator assembly and a rotor assembly, the rotor assembly rotatable relative to the stator assembly; and an electrical break, the drive shaft coupled to the rotor assembly through the electrical break.

An apparatus for generating acoustic waves within a medium to stimulate oil recovery within an oil reservoir, the apparatus being operable with a single moving parta central rotor, and where the rotor further includes a conduit through which the supply fluid passes.

A motor may include a rotor including a rotating shaft and a magnet a bearing member; a stator including a plurality of coils arranged on the rotor; and a resin sealing member. The resin sealing member may include a bottom portion that covers the bearing member and the plurality of coils from a first direction side along an axis of the rotating shaft. The bottom portion may include a cylindrical bearing support section which surrounds the bearing member from an outer peripheral side in a radial direction, a coil sealing section positioned on the first direction side of the coils, and a connection section that connects between the bearing support section and the coil sealing section. A thickness of the connection section in an axial direction may be smaller than a thickness of the bearing support section and the coil sealing section.

Noise caused by a gap between a rotor and a plate can be suppressed even when there are dimensional variations in members or assembly states. In a configuration of a stepping motor including front side and end side stator assemblies (200, 300), a rotor (400) provided with a rotor member (402) and a shaft (403) that are accommodated in the stator assemblies (200, 300), and a front plate (210) and an end plate (310) that are arranged on both sides of the stator assemblies (200, 300) in an axial direction, and are configured to couple the stator assemblies (200, 300), a projection (700) in an annular shape is provided on a surface of the front plate (210) facing the rotor member (402) to protrude toward the rotor member (402), a coil spring (800) that is interposed between the front plate (210) and the rotor member (402) is accommodated in the inner side of the projection (700), and the rotor (400) is urged toward the end plate (310) by the coil spring to be elastically pressed against the end plate (310).

There is provided a motor including a rotor having a magnet fixed to the outer periphery of a rotor main body, a spindle for rotatably supporting the rotor via the rotor main body, a first bearing unit provided at one end side of the rotor in a longitudinal direction of the spindle, and a second bearing unit provided at the other end side of the rotor in the longitudinal direction of the spindle. The first bearing unit slidably contacts the spindle with a set clearance, and the second bearing unit includes an elastic bearing unit slidably contacting the spindle in a state of being elastically pressed against the spindle. When the first bearing unit is defined as a bearing unit at the one end side in the longitudinal direction of the spindle, the elastic bearing unit is configured to be located as a bearing unit at the other end side.

Provided is a brushless direct current (BLDC) motor applied to a fuel pump for a motor vehicle, and more particularly, a BLDC motor of a fuel pump for a motor vehicle in which an end of a shaft of a rotor is coupled to a stator side to be rotated such that a length of the shaft is reduced.

A cap for a rotating electric machine, the cap comprising at least a rolling bearing receiving portion (2) for receiving a rolling bearing (R) having an outer race (E), the rolling bearing receiving portion (2) comprising a radially resilient central portion (3) configured to exert pressure on the outer race (E) of the rolling bearing.

A fluid pump includes an inlet plate having an inlet; an outlet plate having an outlet plate outlet passage; an outlet which discharges fluid from the fuel pump; an electric motor having a shaft which rotates about an axis; a pumping element rotationally coupled to the shaft such that rotation of the pumping element by the shaft causes fluid to be pumped from the inlet to the outlet plate outlet passage and through the outlet; and a retention clip. The retention clip includes a central portion, a first leg which extends laterally from one end of the central portion, and a second leg which extends laterally from the other end of the central portion. The inlet plate includes an inlet plate slot within which the first leg is located and the outlet plate includes an outlet plate slot within which the second leg is located.

An integrated joint module includes a housing, a driving assembly, a speed reduction assembly, a braking assembly and an encoding assembly. The housing includes a first housing and a second housing, an annular supporting platform is arranged on an inner side of the first housing. The driving assembly includes an output shaft, a stator embedded in the annular supporting platform, and a rotor connected with the output shaft and arranged on an inner side of the stator, the speed reduction assembly and the braking assembly are connected with two ends of the output shaft. The encoding assembly is arranged on a side of the braking assembly away from the driving assembly and connected with the output shaft, the second housing is sleeved on the encoding assembly and connected with the first housing. The integrated joint module helps to simplify the structure of the joint module and reduce the cost.