Power transmission device

A power transmission device, comprising:

• a case that houses a power transmission mechanism;
• a control valve configured to control an oil pressure supplied to the power transmission mechanism, the control valve being arranged upright inside the case;
• and
• a first pump and a second pump configured to supply oil to the control valve, wherein
• the case has
• a first support wall that supports an axis of rotation of the power transmission mechanism,
• a second support wall that supports the control valve and is arranged aligned with the axis of rotation,
• a first chamber located on one side of the first support wall,
• a second chamber adjacent to the first chamber across the second support wall, and
• a third support wall extending from the second support wall along the axis of rotation to the other side of the first support wall,
• the first pump is mounted on the first support wall inside the first chamber, and
• the second pump is mounted on the third support wall inside the second chamber.