SENSOR RELAY Russian patent published in 2005 - IPC

FIELD: instrument engineering.

SUBSTANCE: sensor relay can be used in systems for inspecting and adjusting pressure and temperature as a commutation unit. Sensor relay has case. There is bracket fastened inside the case. Double-armed operating lever is mounted bracket onto knife-edge support. Under changes in pressure of temperature one arm of bracket is influenced force of bellows sensitive system or thermal system; strength of range adjusting spring counteracts the force. The other arm has the ability of interacting flexible movable plates of switching contact group through insulation plank. Movable plates are spring loaded against motionless plate at free state. Intermediate angular lever is fastened onto axis inside the case. One arm of the lever which has knife-edge support through sliding block is connected with knife-edge support of operating lever, the other arm is connected with case through tension spring. Stroke limitation of operating lever is provided by stationary rest at one side and by adjustable stop at the other side. Adjustable stop is capable of moving along thread inside the case.

EFFECT: bigger currents; retained value of setting value at adjusting of return area.

2 dwg