| 摘要 |
An electric boiler is provided to simplify a structure and an installation and to improve instant heat efficiency and to prevent discharge of harmful substances such as carbon dioxide and to be used as a power generator. An electric boiler includes main cylinders(2a,2b) formed at right and left sides of a casing(1), supplying and discharging units(3,4) respectively provided at upper parts of the main cylinders for supplying and discharging a selected object, main pistons(6a,6b) provided in the right and left main cylinders so as to be guided by several guide rods, heaters(7a,7b) provided to the main pistons, whose power source being controlled by a movable terminal(17) of limit switches(16a,16b) provided at the outside of the casing, sub-cylinders(8a,8b) provided to the main pistons and including sub-pistons(9a,9b), communication holes including check valves(13a,13b) communicating the sub-cylinders with the main cylinders, a supply pipe(19) including check valves(11a,11b) forming the supply unit(3) connected to other side of the sub-cylinders(8a,8b), piston rods(14a,14b) of the sub-pistons extended to the outside of the casing, and a sensing piece(15) formed at the piston rod(14a) and selectively contacted to the movable terminal of the limit switches, where the discharge unit(4) connected the one side of the main cylinder is formed of a discharge pipe having check valves(18a,18b) elastically installed at a spring(18c).
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