Abstract: Provided is a unit including: an input element; an output element; first to third engagement elements; a first planetary gear mechanism in which the first to third rotational elements are arranged in this order on an alignment chart; and a second planetary gear mechanism in which fourth to sixth rotational elements are arranged in this order on the alignment chart. The input element is connected to the first rotational element and the sixth rotational element, the output element is connected to the second rotational element, one side of the first engagement element is connected to the third rotational element and the fifth rotational element, the other side of the first engagement element is fixed, one side of the second engagement element is connected to the fourth rotational element, the other side of the second engagement element is fixed, and the third engagement element connects two rotational elements that are selected from the first to sixth rotational elements and are not connected to each other.

Abstract: A rotating electric machine includes an inner housing and an outer housing. An inner circumferential surface of the outer housing includes a first cylindrical surface contacting first sealing member, a second cylindrical surface contacting a second sealing member, and a third cylindrical surface in which an end part of the inner housing is press-fitted into. The second cylindrical surface has a smaller diameter than the first cylindrical surface and the third cylindrical surface has a smaller diameter than the second cylindrical surface and is provided closer to the bottom than the second cylindrical surface. The first sealing member contacts the first cylindrical surface and the second sealing member contacts the second cylindrical surface to form a gap in an axial direction between the end part of the inner housing and the third cylindrical surface where the inner housing has been inserted into the outer housing.

Abstract: A power transmission device includes: a case that accommodates a power transmission mechanism; a strainer disposed to face a bottom wall portion in the case; a suction port for oil provided in a portion of the strainer facing the bottom wall portion; and a magnet disposed between the bottom wall portion and the strainer in the case. The magnet and the suction port are provided to be displaced from each other when viewed from a facing direction in which the strainer and the bottom wall portion face each other, and the suction port is provided with an opening facing a magnet side.

Abstract: Provided is a unit including: a heat exchanger; and a housing configured to accommodate a differential gear mechanism, in which the housing has a portion having an inclined surface surrounding the differential gear mechanism in a radial direction, and the heat exchanger has a portion that overlaps the inclined surface when viewed in an axial direction.

Abstract: A unit includes: a rotating electrical machine; an inverter located in an outer periphery of the rotating electrical machine; a first gear connected downstream of the rotating electrical machine; a second gear to mesh with the first gear; a third gear connected downstream of the second gear via a shaft; and a fourth gear to mesh with the third gear. The shaft has a portion that overlaps a stator of the rotating electrical machine when viewed in a radial direction, and the inverter has a portion that overlaps the second gear when viewed in an axial direction.

Abstract: Provided is a unit including: an input element; an output element; first to third engagement elements; a first planetary gear mechanism in which the first to third rotational elements are arranged in this order on an alignment chart; and a second planetary gear mechanism in which fourth to sixth rotational elements are arranged in this order on the alignment chart. The input element is connected to the third rotational element, the output element is connected to the second rotational element and the sixth rotational element, one side of the first engagement element is connected to the fifth rotational element, the other side of the first engagement element is fixed, one side of the second engagement element is connected to the first rotational element and the fourth rotational element, the other side of the second engagement element is fixed, and the third engagement element connects two rotational elements that are selected from the first to sixth rotational elements and are not connected to each other.

Abstract: A power transmission device for a vehicle includes a housing that accommodates a power transmission mechanism, a partition section that supports the power transmission mechanism and divides an interior of the housing, a strainer arranged at a bottom of the housing, and a pump supported by the partition section. The housing defines a first chamber located on one side of the partition section in a direction of an axis of rotation of the power transmission device, and a second chamber located on the other side of the partition section. The strainer has a first connection port that connects to the pump, and a second connection port that connects to a second oil path inside the partition section, the second connection port connecting to the second oil path from a direction of assembly of the pump onto the partition section.

Abstract: An oil pressure supply device supplies, to an oil chamber, an oil pressure generated by suctioning oil from an oil source with an oil pump. The oil pressure supply device includes a first oil passage connected to a suction side of the oil pump; a first check valve provided in the first oil passage and configured to close the first oil passage and prevent oil from moving to the oil source side when the oil pump is stopped; a second oil passage connected to a discharge side of the oil pump; and a second check valve provided in the second oil passage and configured to close the second oil passage and prevent oil from moving to the oil pump side when the oil pump is stopped. When the oil pump is stopped, the second check valve closes the second oil passage earlier than the first check valve closes the first oil passage.

Abstract: A device includes: a motor, an inverter configured to drive the motor, a gear device connected downstream of the motor, and a drive shaft configured to transmit, to a drive wheel, power of the motor transmitted from the gear device, and the drive shaft includes a portion covered with a noise reducing material.

Abstract: A device includes: a motor; a gear device disposed on one side of the motor and including a first lubricated member; an oil accumulation portion provided on the other side of the motor; a second lubricated member provided in the oil accumulation portion; and a communication passage configured to allows gear device side to communicate with the oil accumulation portion, in which the communication passage is provided above respective lowest points on a lower side in a gravity direction of lubrication target locations of the first lubricated member and the second lubricated member, the oil accumulation portion includes an enlarged portion in which an upper side in the gravity direction is thicker than a lower side in an axial direction, and the lowest point of the second lubricated member is positioned in the enlarged portion.

Abstract: A component comprising: a motor accommodating portion that accommodates a motor; an inverter accommodating portion that accommodates an inverter; a coupling portion that couples the motor accommodating portion and the inverter accommodating portion and is integrally formed with the motor accommodating portion and the inverter accommodating portion; and an oil passage that is formed in the coupling portion in a manner of extending along an axial direction of the motor.

Abstract: A cooling device cools a power semiconductor device. The cooling device includes a tank that accommodates a power semiconductor device, insulating oil, and a refrigerant liquid having a boiling point temperature lower than a boiling point temperature of the insulating oil and a specific gravity larger than a specific gravity of the insulating oil. The insulating oil and the refrigerant liquid are stored in the tank in a mixed state to cool the power semiconductor device.

Abstract: A power transmission device includes a case, a control valve, and an electric pump. The case has a first chamber that accommodates a power transmission mechanism, and a second chamber in which the control valve is arranged upright, with pressure regulating valves being aligned in a vertical direction. An axis of rotation of a motor of the electric pump is aligned in the vertical direction. The control valve and the electric pump are arranged in a direction of an axis of rotation of the power transmission mechanism. The electric pump has a first flange section where a first arm of a jig engages, and a supported section supported by a second arm of the jig. The supported section forms a circular basic cross-sectional shape in a plane orthogonal to the axis of rotation of the motor. The first flange section extends from an outer circumference of the supported section.

Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by the sixth rotational element, the second rotational part is implemented by coupling the first rotational element and the fifth rotational element, the third rotational part is implemented by the second rotational element, and the fourth rotational part is implemented by coupling the third rotational element and the fourth rotational element.

Abstract: Provided is a unit including: an input element; an output element; and a gear device which is implemented by coupling respective rotational elements of a first planetary gear mechanism and a second planetary gear mechanism at one place and in which, on an alignment chart, a second rotational part which is the coupled rotational elements is disposed between a first rotational part and a third rotational part, and a fifth rotational part is disposed between the second rotational part and a fourth rotational part. In the unit, the input element is connected to the first rotational part, the output element is connected to the fifth rotational part, the third rotational part is fixed, the fourth rotational part is selectively connectable to a fixed element or the first rotational part, and the fifth rotational part is connectable to the first rotational part.

Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by coupling the third rotational element and the fourth rotational element, the second rotational part is implemented by the fifth rotational element, the third rotational part is implemented by coupling the second rotational element and the sixth rotational element, and the fourth rotational part is implemented by the first rotational element.

Abstract: A power transmission device includes a housing that accommodates a power transmission mechanism, a partition section that is provided in the housing and that supports the power transmission mechanism, a first oil path that is provided inside the partition section, a second oil path that is provided inside the partition section, a recess that is provided in the partition section, and a filter member that is disposed inside the recess. The recess is provided with an opening facing a direction of an axis of rotation of the power transmission device. The first oil path and the second oil path communicate via the recess.

Abstract: A power transmission device for a vehicle includes a housing that accommodates a power transmission mechanism, a control valve, a heat exchanger, a first chamber that accommodates the power transmission mechanism, and a second chamber in which the control valve is arranged upright. The housing includes a case, a first cover joined to the case forming the first chamber with the case, and a second cover joined to the case from a front of the vehicle forming the second chamber with the case. The heat exchanger is attached to a vehicle front side of the first cover. As viewed from the direction of the axis of rotation of the power transmission mechanism, at least a part of the heat exchanger is provided in a positional relationship overlapping the control valve.

Abstract: A case for housing a driving force transmission device includes a wall section defining a through-hole through which a shaft is configured to pass. The wall section, as viewed from an axial direction, includes an annular section surrounding the through-hole, first ribs that extend radially outward from the annular section, a second rib that crosses a vertical line that passes through an axial center of the shaft from one side to the other side, and a recess that opens at a bottom end surface of the wall section, and recessed in a direction along the vertical line. A bottom surface of the recess has a shape such that a side farther from the vertical line is located closer to a bottom end surface side. A region of the wall section in which the recess is provided is connected to one end of the second rib.

Abstract: Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by the first rotational element, the second rotational part is implemented by coupling the second rotational element and the sixth rotational element, the third rotational part is implemented by the fifth rotational element, and the fourth rotational part is implemented by coupling the third rotational element and the fourth rotational element.