| 摘要 |
<p>A hydraulic power unit and a hydraulic engine. The hydraulic engine generates rotational power by using environmentally friendly electric energy, and has improved performance and a long life span. Also, the hydraulic power unit, which is capable of strongly jetting a working fluid and is environmentally friendly and has a long life span, may be used to implement a new engine. The hydraulic power unit includes: an inner tube comprising a hollow portion, wherein a fluid inlet through and a fluid outlet are formed in the inner tube and a front end portion of the inner tube is closed; a vibration tube comprising a hollow portion, an elastic tube layer and a metal tube layer, wherein a plurality of slits extended in a length direction are formed in the metal tube layer along a circumference of the metal tube layer, and the hollow portion of the vibration tube is connected in line to the hollow portion of the inner tube to form a hydraulic chamber, and a back portion of the vibration tube is closed; an oscillator that is disposed to contact a back end of the vibration tube; an outer check member that is disposed to be adhered to an outer portion of the fluid outlet formed in the inner tube; and an inner check ring that is disposed to contact the fluid inlet and a circumference of an inner wall of the fluid inlet so as to close the fluid inlet of the inner tube inside the hollow portion of the inner tube.</p> |
