| 摘要 |
<p>Nozzle (2) has body (1) with handle (21), and operating handle (8). Piston (32) has axial drilled hole (320) in which valve (44) is placed. Valve is integral to body; piston is sliding within body. Movement of body is caused by (a) resulting force of total fluid pressure applied on piston surface (D) situated in front of valve, and (b) force applied by return spring (31) trying to neutralize resulting force of total fluid pressure.</p> |
