| 摘要 |
PROBLEM TO BE SOLVED: To provide an automobile superior in energy recovery efficiency by suppressing dissipation of heat generating in a high pressure accumulator.SOLUTION: A high pressure accumulator 40 of an automobile is connected to an oil pump motor 13, and stores an oil and a gas under pressure. The high pressure accumulator 40 is slidably disposed inside of a container 17, and includes a piston 18 for dividing the inside into an oil chamber OR and a gas chamber GR. In the oil chamber OR, an oil of variable storage amount is stored, and in the gas chamber GR, a gas of constant amount is stored. A latent heat accumulation material 41 having a transition temperature within a range of temperature increasable in accompany with compression of the gas chamber GR, is disposed in a peripheral region of the gas chamber GR.SELECTED DRAWING: Figure 6 |
