A device for utilizing groundwater, characterized by: a) an upper well with a vertical or predominantly vertical well shaft and an upper well water reservoir having a first well water level; b) a lower well with a vertical or predominantly vertical well shaft and a lower well water reservoir having a second well water level; c) wherein the second well water level is lower than the first well water level; d) a water line between the upper well water reservoir and the lower well water reservoir comprising: a first branch line extending downwardly inside the well shaft of the upper well and into the upper well water reservoir, a second branch line extending downwardly inside the well shaft of the lower well and into the lower well water reservoir, and a connecting line extending horizontally or predominantly horizontally and connecting the first branch line and the second branch line; e) at least one turbine situated at the level of the connecting line and coupled to the water line for a rotary drive of a turbine rotor by the fluid in the water line; and f) an electrical generator comprising a rotor which is mechanically coupled to the at least one turbine rotor and a stator with one or multiple electric output terminals, g) wherein the one or multiple electric output terminals of the electrical generator are connected to an energy storage device or to a converter or inverter which is coupled to a power grid for delivering electric power to the power grid.

A vehicle-use alternating current generator regulator includes an IC regulator wherein an IC chip is sealed with resin and a lead terminal for external connection protrudes from a sealing resin, and a regulator holder having a lead opposing portion that encloses an IC regulator mounting portion in which the IC regulator is mounted. A configuration is such that the lead terminal has a lead protruding portion protruding from a contact with the regulator holder, and the IC regulator is positioned by the lead protruding portion being fitted into the lead opposing portion of the regulator holder.

A protective cover for a rotary electric machine including: a bottom portion formed into an approximately circular shape; a side wall extending from the bottom portion along an outer periphery thereof; and an opening portion, of approximately circular shape and formed by an end of the side wall, wherein the side wall has a plurality of guide ribs formed on an inner side thereof and arranged apart from each other along the outer periphery of the bottom portion, wherein each of the guide ribs has a chamfered portion at an end on a side closer to the opening portion, and wherein each of the guide ribs has a height of a top portion of each of the plurality of guide ribs from the side wall allows the top portion to contact a side surface of the component when the protective cover is mounted to the rotary electric machine.

A vehicle includes a vehicle frame, a body on the vehicle frame, the vehicle frame and the body defining a wheel well, a wheel disposed in the wheel well, an engine for propelling the vehicle, and an electrical system for providing electrical power to the engine. The electrical system includes a regulator for maintaining a constant voltage across the electrical system located in the wheel well. A cover is located in the wheel well between the regulator and the wheel. An air intake is located in the body for directing airflow into a portion of the wheel well defined by the cover and housing the regulator to cool the regulator.

An electrical rotating machine provides an integrated capacitive encoder for control of the stator field and enabling any of reduced size, reduced rotational inertia, and lower cost. The same structure may also support capacitive plates for capacitive power transfer to the rotor.

An electronics package for an alternator includes a positive carrier member having an inner side and an outer side, a plurality of switches connected to the positive carrier member, and a terminal assembly engaging the positive carrier member. The terminal assembly includes an electrically insulative portion and a plurality of electrical traces attached to the electrically insulative portion. The electrically insulative portion includes a post extending from the inner side to the outer side of the positive carrier member, a first shoulder engaging the outer side of the positive carrier member, and a second shoulder engaging the inner side of the positive carrier member. The second shoulder is provided by a deformed segment of the post. The post, first shoulder, and second shoulder are all formed as a unitary component.

A method of making an electronics package for an alternator includes inserting a post of a terminal assembly thorough a hole in an electrically conductive carrier member such that the terminal assembly is positioned on a first side of the carrier member and an end portion of the post extends from a second side of the carrier member. The method further includes deforming the post extending through the hole on the second side of the carrier member such that the terminal assembly engages the second side of the carrier member and the carrier member is connected to the terminal assembly.

Radial direction outer side sizes of a first rectifying unit, a circuit board, and a second rectifying unit configuring a rectifying device are disposed so as to be sequentially smaller in a direction away from a frame of a rotating electrical machine main body, and at predetermined intervals, a cover covering the rectifying device has a cover end wall portion, a cover outer wall portion, and a cover intermediate portion, an inner peripheral side inlet portion is formed in the cover end wall portion, an outer peripheral side inlet portion is formed in the cover intermediate portion, and the outer peripheral side inlet portion is formed of an axial direction covering portion, and a radial direction covering portion that connects the axial direction covering portion and an outer peripheral portion of the cover end wall portion.

To provide an AC generator equipped with a voltage regulation device capable of cost reduction in terms of both of manufacture and device, a voltage regulation device for the AC generator, and a method for manufacturing the same. In an AC generator equipped with a voltage regulation device 16 for regulating the magnitude of output voltage, the voltage regulation device 16 is composed of: a molded body 15 having a plurality of insert conductors; and a circuit component 14 mounted on the molded body 15 and electrically connected to the insert conductors, and in the voltage regulation device 16, an extended-portion-for-jumper 19ae is integrally provided in a part of the insert conductor 19a.

A rotary electric machine integrated with a control device includes: a housing composed of a front bracket and a rear bracket and supporting a rotor and a stator; and a control device attached to the rear bracket. The control device is composed of: a power module having a switching element that is for energizing a stator winding of the stator; a field module having a switching element that is for energizing a field winding of the rotor; a heat sink cooling the power module and the field module; and a control board having a control circuit that controls the switching elements, the control device also including: a battery end terminal; and a grounding end terminal. Then, the heat sink is attached to the rear bracket while being insulated therefrom.