公开(公告)号：US3669134A

公开(公告)日：1972-06-13

申请号：US3669134D

申请日：1970-06-11

Applicant: DRAEGERWERK AG

Inventor： DOBRITZ GUNTER

IPC: A61M16/10 ,  B01F3/02 ,  G05D11/00

CPC classification number: B01F3/028 ,  Y10T137/0352 ,  Y10T137/2521

Abstract: In a method for mixing two gases in a predetermined ratio, the two gases are supplied to respective chambers, having fixed or adjustable preselected volumes, through respective first pressure regulators while maintaining the discharge pressures of the two first pressure regulators in such predetermined ratio. The flow of the two gases to the chambers is then interrupted, and the two gases are thereafter discharged from the respective chambers to a common discharge line through respective second pressure regulators while maintaining the discharge pressures of the two second pressure regulators in such predetermined ratio. The apparatus includes adjustable means for conjointly adjusting both the first and second pressure regulators so that the discharge ratios thereof are equal and equal to the predetermined ratio. A reversing shut-off valve may be used to connect the chambers to the first pressure regulators or to discharge the chambers through the second pressure regulators. A magnetically biased torsion resistant lever may be used to commonly bias the pressures of the first and second pressure regulators and also to adjust the respective pressure ratios. The respective first and second pressure regulators for each gas may be combined into a single unit.

Abstract translation: 在以预定比率混合两种气体的方法中，通过相应的第一压力调节器将两种气体供应到具有固定或可调节的预选容积的相应室，同时以这种预定比例保持两个第一压力调节器的排出压力。 然后将两种气体流到腔室的流动被中断，然后两种气体通过相应的第二压力调节器从相应的腔室排放到公共排放管线，同时以这种预定比例保持两个第二压力调节器的排出压力。 该装置包括用于联合调节第一和第二压力调节器的可调节装置，使得其排出比等于和等于预定比率。 可以使用反向截止阀将腔室连接到第一压力调节器或通过第二压力调节器排出腔室。 可以使用磁偏置的扭转扭力杆来共同地偏压第一和第二压力调节器的压力，并且还可以调节相应的压力比。 用于每种气体的相应的第一和第二压力调节器可以组合成单个单元。

公开(公告)号：US3605785A

公开(公告)日：1971-09-20

申请号：US3605785D

申请日：1969-06-06

Applicant: DRAEGERWERK AG

Inventor： DOBRITZ GUNTER

IPC: A61M16/12 ,  B01F15/04 ,  G05D11/02

CPC classification number: B01F15/0454 ,  A61M16/12 ,  Y10T137/2514 ,  Y10T137/2524

Abstract: TWO GASES TO BE MIXED ARE INTRODUCED, AT EQUAL PRESSURES, INTO RESPECTIVE CHAMBERS WHOSE VOLUMES HAVE THE DESIRED MIXTURE RATIO. THE GASES CONTINUE TO BE INTRODUCED INTO THE RESPECTIVE CHAMBERS UNTIL THE PRESSURE IN THE CHAMBERS ATTAINS A DESIRED VALUE, AFTER WHICH FLOW OF GASES INTO THE CHAMBERS IS INTERRUPTED AND FLOW OF GASES FROM THE CHAMBERS IS INITIATED. AS THE GASES FLOW FROM THE CHAMBERS, THEY ARE MIXED TO FORM THE GAS MIXTURE. A PRESSURE REDUCER IS CONNECTED TO THE TWO GAS INFLOW LINES TO EQUALIZE THE TWO GAS PRESSURES. A SHUTOFF VALVE IS OPERATIVELY ASSOCIATED WITH EACH INFLOW LINE. BETWEEN THE PRESSURE REDUCER AND RESPECTIVE CHAMBER, A SHUT-OFF VALVE ALSO CONTROLS THE OUTFLOW OF GAS TO A FURTHER PRESSURE EQUALIZING PRESSURE REDUCER VALVE WHOSE OUPUT IS CONNECTED TO A GAS MIXING TANK OR THE LIKE. IN A MODIFICATION, THE PRESSURE REDUCING INFLOW VALVE AND THE SHUT-OFF VALVES ARE COMBINED INTO A SINGLE UNIT. PREFERABLY, MEANS ARE PROVIDED TO ASSURE MAINTENANCE OF EQUAL PRESSURE IN THE TWO CHAMBERS.