| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal structure of an electric oil pump capable of easily performing fitting work in joining the electric oil pump and a transmission through a sleeve.SOLUTION: In a seal structure at a joining portion of a transmission and an electric oil pump of a vehicle loading an idling stop system for stopping an engine while stopping, the seal structure is composed of a seal groove 2a formed on an outer periphery of a cylindrical sleeve 2, and a seal member fitted into the groove, the seal member is a seal ring 1 made of a synthetic resin, and having a rectangular cross-section having an abutment of a composite step cut, and the seal ring 1 has a structure of which a diameter can be reduced or expanded. |
