| 摘要 |
PURPOSE:To set a volume variable chamber to any position easily by manual operation by providing a connecting hole to a wall part of the main body of a pressure adjusting chamber, placing a volume variable chamber that is connected to a connecting hole at a part of the connecting hole, and providing simultaneously a volume setting mechanism for the volume variable chamber. CONSTITUTION:When a handle 28 that is screw-attched to a setting bar 26 is turned to the right for instance, the setting bar 26 advances spirally to the right in the figure, while resisting a coil spring 19, and an end plate 17 is moved to the right, shortening a plug 18 to place the end plate 17 at the center, so that the volume variable chamber b can be set to an optional volume. At the same time, when oil is supplemented in a crank chamber and in the side of a pressure adjusting chamber (a) that is connected to the crank chamber, the volume variable chamber b can be set to any volume in which the end plate 17 of the volume variable chamber b is located at about the center of the pressure adjusting chamber (a). |
