FIELD: pneumatic and hydro-controlling equipment engineering, providing for activation of executive mechanisms when predetermined environment pressure is reached.
SUBSTANCE: pressure relay contains body, provided with feeding connection, membrane positioned in it and electric contact. Membrane is positioned between end of circular body and end of body element. Electric contact closing electric circuit is let through body. Membrane is welded in plastic state to body of relay consisting of two parts. After welding it is subjected to thermal processing to produce required membrane profile, polished using chemical method across thickness with check of activation pressure. Required gap is sustained between contact, positioned in electro-isolating bushing, and membrane.
EFFECT: increased relay activation reliability, simultaneous decrease of dimensions of device and of its metal capacity.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PRESSURE RELAY | 2006 |
|
RU2317532C1 |
| EXCESS PRESSURE SIGNALIZER WITH PRESSURIZED CONTACT CHAMBER | 2008 |
|
RU2379639C1 |
| PRESSURE RELAY | 0 |
|
SU1723475A1 |
| VACUUM RELAY | 0 |
|
SU1112231A1 |
| PRESSURE TRANSDUCER | 2004 |
|
RU2285249C2 |
| AUTOMOBILE WARNING DEVICE | 0 |
|
SU1238999A1 |
| CAPACITIVE PRESSURE PICKUP AND PROCESS OF ITS ASSEMBLY | 2001 |
|
RU2229107C2 |
| PRESSURE RELAY | 0 |
|
SU1046792A1 |
| FLUID MEDIUM PRESSURE DERIVATIVE SENSOR, PNEUMOELECTRIC PRESSURE RELAY AND SYSTEM WARNING ABOUT AIR LEAKAGE FROM PUMPED TIRE | 1989 |
|
RU2049314C1 |
| BIMETALLIC-STRIP THERMAL RELAY | 1992 |
|
RU2043673C1 |
