| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an oil level detecting device for a compressor capable of mounting a light-emitting element and a light-receiving element in a state that their optical axes are fitted to one another, and having superior detecting sensitivity. SOLUTION: Recessed parts 1a are respectively formed on opposite outer peripheral faces of a delivery pipe 1, the light-emitting element 3a and the light-receiving element 3b are accommodated in a bottomed cylindrical case 5, and the case is fitted to the recessed parts, whereby the optical axes of the light-emitting element and the light-receiving element can be fitted to one another, and the detecting sensitivity can be improved.</p> |
