| 摘要 |
<p>The invention relates to a cryogenic liquid pump equipped with a pump body actuated by a drive assembly and incorporated inside a reservoir of cryogenic liquid, this removable pump body (10) being able to slide in a well (12) and be made to communicate selectively with the reservoir (16) by a first valve (24, 110) which, in the open position, allows liquid to transfer from the reservoir to the pump body before it is discharged in the form of a liquid or a gas via an outlet orifice (60) and, via a second valve (26, 260) allowing, when opened, a flow of cold gas from the gaseous ceiling of this reservoir towards a rear end (28) of the pump body from which it is then discharged to the outside via a bleed/purge orifice (64). Preferably this bleed/purge orifice (64) is equipped at the outlet with a device (62) for adjusting the cold gaseous flow rate leaving the pump body (10). <IMAGE></p> |
