| 摘要 |
<p>PCT No. PCT/AT84/00011 Sec. 371 Date Nov. 1, 1984 Sec. 102(e) Date Nov. 5, 1984 PCT Filed Mar. 2, 1984 PCT Pub. No. WO84/03542 PCT Pub. Date Sep. 13, 1984.A lifting device for controlling the movement of the closure plate of a compressor valve comprises a first gripper part which is connected to the compressor valve to be movable toward and away therefrom; a regulating spring which is in contact with the first gripper part to bias it toward the compressor valve; and a second gripper part which is movable with respect to the first gripper part and the compressor valve, the second gripper part including lift elements having lifting prongs which can contact the closure plate, tension screws which connect the lift elements to the first gripper part and provide end stops for the movement of the lift elements, and damper springs which damp the relative movement of the lift elements relative to the first gripper part.</p> |
