| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid linear pressurizer in which fluid such as ammonia gas or the like does not immerse into a coil and a piston can move without any permanent magnets.SOLUTION: A linear mechanism part 50 for moving a piston 40 in respect to a cylinder 5 comprises: a movable member 30 slidably fitted into the cylinder, integrally connected to the piston and formed by magnetic material; a coil 20 wound around an outer surface of the cylinder; and a recess part 7 formed in an annular shape in a peripheral direction of the cylinder at an outer surface of the coil wound portion of the cylinder wound with the coil. The recess part is arranged at a position that is not symmetrical in respect to a length of the movable member in its moving direction in a moving range of the movable member, the coil is electrically energized to cause the movable member to move in an axial direction in respect to the cylinder.SELECTED DRAWING: Figure 1 |
