| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the oil feeding capacity of a gear pump at the starting time of a compressor, and to prevent the seizure owing to an oil shortage. SOLUTION: A seal member 90 composed of a seal plate 91 opposing to one end face of a gear pump 40, and a rubber sheet to energize the seal plate 91 to one end face of the gear pump 40, is provided between a valve plate 5 and the gear pump 40. The clearance in the axial direction of the gear pump 40 is closed to zero, and a high oil lifting capacity or a high oil feeding capacity of the gear pump 40 is obtained. As a result, the compressor is stopped, the lubricant in the gear pump 40 drops in an oil storing chamber 70 to generate an oil shortage, and even when the compressor is restarted in such a condition, the lubricant is raised smoothly from the oil storing chamber 70 to an oil suction chamber 51, so as to feed the lubricant stably to the bearing 9.</p> |
