| 摘要 |
A power sprayer is provided, in which the separate lubricating device and lubricating oil are not needed by reducing friction with the cylinder inner wall. A power sprayer comprises: a main body(10) in which a crank shaft is installed in the horizontal direction and which reciprocates a piston; a cylinder block(20) in which a cylinder is installed in the horizontal direction so that piston can reciprocate and a supply water pipeline is formed in order to be in contact with the surface of the piston; an inlet port for flowing in the fluid from the outside; and a discharge opening(40) in which an air chamber and a manometer are formed in the upper portion.
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