Ac&r Components, Inc.

Paul E Isaacs

Gary W Westermeyer

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.

Electromechanical regulator

An oil separator for separating liquid oil from a gaseous refrigerant in a refrigerant system has an oil separator chamber and an oil reservoir chamber arranged horizontally adjacent to one another. The oil separator chamber contains an oil separator having an inlet for receiving a refrigerant/oil mixture, a separator for separating the gas and oil from the oil/gas mixture, a gas outlet and an oil outlet leading from the very bottom of the oil separator chamber into the oil reservoir chamber. The oil reservoir chamber contains an oil return inlet opening near a bottom of the oil reservoir chamber leading to an outside of the oil reservoir chamber. Also, an arrangement is provided at the oil outlet for allowing a flow of oil from the oil separator chamber to the oil reservoir chamber, but preventing a flow of oil from the oil reservoir chamber to the oil separator chamber.

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Auburn, IL, United States of America

Paul E Isaacs