| 摘要 |
PURPOSE:To provide an oil temperature regulator of a hydraulic elevator that is able to control an oil temperature into a proper value without performing an unnecessary elevator run so far practiced and using a large-sized oil cooler. CONSTITUTION:This oil temperature regulator of hydraulic elevator is provided with an oil tank 7 storing oil available in drive of a hydraulic jack, a hollow tubule 3 folded so many times so as to make the surface area, in contact with oil in this oil tank 7, become large enough, a circulating pump 2 feeding this tubule 3 with water under pressure, and a heat exchanger doing a heat exchange of water being fed out of this circulating pump 2 under pressure and passing through this tubule 3, respectively. In addition it is also provided with a cooler equipped with a blower constituting this heat exchanger 4, a heater equipped with an electric heating appliance, an oil temperature gauge 5 measuring an oil temperature in the oil tank 7, and a controller 6 controlling the operations of those of cooler and heater constituting the heat exchanger from a signal out of this oil temperature gauge 5. |
