| 摘要 |
<p>The present invention provides a small sized mechanical seal device which is available to perform cooling efficiently and having high anti-abrasion property. In a mechanical seal device of the present invention, a fluid supplied from a cooling fluid supplying bore 71 passes through an intermediate chamber 73 and introduced into an inside of a cylindrical section 82 of a collar 80 from a port 83 of a back face section 81 of the collar 80 as a pumping ring 80. In the collar 80, the cooling fluid equally flows in a space between an inner circumferential face of the cylindrical section 82 and an outer circumferential section of a rotary ring 51, also flows to near a sliding face of an external side mechanical seal device 50. The cooling fluid in the collar 80 is derived from a discharge port 84 which is formed on the cylindrical section 82 and the cooling fluid is discharged via an outlet bore 72.</p> |
