公开(公告)号：US20210001352A1

公开(公告)日：2021-01-07

申请号：US16955310

申请日：2018-12-03

Applicant: Eppendorf AG

Inventor： Heiko MÜLLER

IPC: B04B7/06 ,  B04B15/02

Abstract: A centrifuge (10) and a method for preventing the ignition of combustible tempering media in centrifuges (10) after a crash of the centrifuge rotor are presented. Ignition is prevented by the release of a protective gas in the event of a crash. More precisely, the released protective gas forms a flow that displaces the oxygen, distributes the escaping tempering medium and fundamentally changes the momentary ratio of the concentration of oxygen to tempering medium in such a manner that no ignition can take place either inside or outside the centrifuge (10). This means that combustible tempering media can also be used without safety concerns within the scope of controlling the temperature of centrifuges (10).

公开(公告)号：US20210252526A1

公开(公告)日：2021-08-19

申请号：US17251826

申请日：2019-06-13

Applicant: Eppendorf AG

Inventor： Heiko MÜLLER ,  Andreas KEIL

IPC: B04B7/06 ,  B04B15/02 ,  F25B39/02

Abstract: A centrifuge and a method for preventing ignition of combustible temperature-control media in centrifuges after a crash of the centrifuge rotor are presented. It is monitored whether the pressure in the evaporator lies below a specified minimum pressure and/or above a specified maximum pressure. Measures to prevent ignition of the temperature-control medium can be taken in a targeted manner. In the event that the pressure lies below a minimum pressure, it must be assumed that either a leak or a crash is present, wherein a leak leads to a slow release of combustible temperature-control medium and a crash leads to an sudden release of combustible temperature-control medium. If the pressure lies above a maximum pressure, there is a risk that there is a large amount of combustible temperature-control medium in the evaporator which could be ignited in the event of a crash.