Electricity-liquid hybrid liquid-pressure apparatus

An electricity-liquid hybrid liquid-pressure apparatus comprising:

• a liquid-pressure rotating device configured to cause a rotating shaft to rotate by supply of an operating liquid or configured to eject the operating liquid in accordance with rotation of the rotating shaft, the rotating shaft projecting from a casing of the liquid-pressure rotating device;
• and
• an electric rotating device configured to have a power generator function of converting rotational energy of the rotating shaft of the liquid-pressure rotating device into electric energy or an electric motor function of driving the rotating shaft of the liquid-pressure rotating device by supply of the electric energy, wherein:
• the electric rotating device includes a rotor connected to the rotating shaft, a stator provided around the rotor, and a housing in which the rotor and the stator are accommodated;
• the rotor and the housing are provided so as to surround the casing;
• the housing includes a first accommodating space in which the rotating shaft projecting from the casing is accommodated and a second accommodating space in which the stator is accommodated;
• and
• a sealing member configured to separate the first accommodating space from the second accommodating space is provided in the housing.