| 摘要 |
<p>The dispensing device includes a casing part (2) and an operating device consisting of an open-top piston-cylinder unit (5) with a roll membrane (9) and a linear guide unit (16). The piston (10) is connected by the roll membrane to the cylinder (6,7). The roll membrane is very thin and mobile, so that there is little internal resistance to the deformation caused by the piston. This gives an extremely short closing time for the piston-cylinder unit.</p> |
