公开(公告)号：US3724482A

公开(公告)日：1973-04-03

申请号：US3724482D

申请日：1971-03-05

Applicant: AGA AB

Inventor： EKSTROM S

IPC: A62B9/02 ,  B63C11/22 ,  A62B7/04

CPC classification number: B63C11/2227 ,  A62B9/022 ,  Y10S137/908 ,  Y10T137/7895

Abstract: A breathing valve having a housing comprising an inlet chamber in communication with which is an inlet opening controlled by an inlet valve, a passage to the breathing organs of the user and an exhalation valve. A control diaphragm subject on one side to the pressure in the inlet chamber acts through an intermediate member to control the inlet valve. An overpressure valve on the side of the control diaphragm across from the inlet chamber receives fluid through the exhalation valve and when the pressure in the overpressure chamber builds up it causes the control diaphragm to open the inlet valve. Springs act on the two diaphragms urging them towards the inlet valve opened position, thereby setting a predetermined pressure value in the overpressure chamber. With this structure, an overpressure is created in the inlet chamber during both inhalation and exhalation.

Abstract translation: 一种呼吸阀，其具有壳体，该壳体包括与入口阀相连通的入口室，通过入口阀门控制的入口，通向使用者呼吸器官的通道和呼气阀。 在一侧受到入口室内的压力的控制隔膜通过中间构件起作用以控制入口阀。 控制隔膜一侧的过压阀通过入口室接收通过呼气阀的流体，当超压室内的压力积聚时，使控制隔膜打开入口阀。 弹簧作用在两个隔膜上，将它们推向入口阀打开位置，从而在超压室中设定预定的压力值。 利用这种结构，在吸入和呼气期间，在入口室中产生过压。