| 摘要 |
A regulator assembly for a breathing mask of an aircraft crew member, comprising:
a casing forming a support,a mode selection knob mounted on the support so as to be movable between a first position and a second position and comprising a protruding portion prompting the user to place the mode selection knob in the first position,a regulator adapted to supply breathing gas to a breathing cavity in the following two operating modes:
in said first position, the regulator supplies gas to the breathing cavity as long as the pressure in the breathing cavity is not greater than a first pressure,in said second position, the regulator supplies gas to the breathing cavity as long as the pressure in the breathing cavity is not greater than a second pressure that is less than the first pressure. |
| 主权项 |
1. A regulator assembly for a breathing mask to be used by an aircraft crew member, comprising:
a casing forming a support, a mode selection knob mounted on the support the mode selection knob being movable between at least a first position and a second position, a regulator intended to be supplied by a source of breathing gas and adapted to supply breathing gas to a breathing cavity in at least the following two operating modes:
when the mode selection knob is in said first position, the regulator supplies gas to the breathing cavity as long as the pressure in the breathing cavity is not greater than a first pressure relative to ambient pressure,when the mode selection knob is in said second position, the regulator supplies gas to the breathing cavity as long as the pressure in the breathing cavity is not greater than a second pressure relative to ambient pressure, the first pressure being greater than the second pressure,wherein in said regulator assembly, the mode selection knob comprises at least one protruding portion prompting the user to place the mode selection knob in the first position. |
