| 摘要 |
<p>PROBLEM TO BE SOLVED: To inhibit an oil from leaking to the upper side of a core cut and thereby prevents lubrication failure caused by shortage of the oil when an oil return plate, which has a passage part in which the oil passes and flange parts joined to a casing at the outer side of the passage part, is provided below a compression mechanism.SOLUTION: External dimensions of flange parts 62 sandwiching a passage part 61 are reduced from the upper side toward the lower side in a core cut 21c. The structure makes an oil less likely to leak from gaps formed between the flange parts 62 and a casing.</p> |
