Electromechanical regulator

摘要

An oil level regulator is disclosed for use in a refrigeration system which has an oil reservoir and at least one compressor with a crankcase for containing oil. The regulator has a body with an interior fluid chamber for receiving oil. An inlet communicates with the fluid chamber of the body and is connected by a conduit to the oil reservoir of the system. An outlet communicates from the fluid chamber through a conduit through to the crankcase of the compressor. A level detecting mechanism is disposed within the fluid chamber for detecting an oil level therein. The level detector mechanism includes a solenoid assembly which is actuated by the detector mechanism when the oil level within the chamber is determined to be at or below a predetermined level. A microprocessor is provided on the regulator which communicates with the detector mechanism and the solenoid assembly. The microprocessor includes a delay timer for actuating the switch mechanism after a delay time period has passed from detection of a low oil level in order to provide fluid to the interior chamber. The microprocessor also includes a latching timer for holding the solenoid assembly in a position for feeding oil into the fluid chamber for a latching time period after an oil level is detected which is at or above the first predetermined level.