Unloading mechanisms for air compressors

Pumps – With condition responsive pumped fluid control – Expansible chamber pump distributor operation modified

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Details

417307, F04B 4902

Patent

active

045056480

ABSTRACT:
A pressure gas generating system including the compressor which is switched to a no-load condition when a predetermined pressure level is reached. The system employs either a regulator or a governor to allow the free exchange of gas between the suction chamber and the compression chamber to prevent the development of high temperatures. In the pressure regulator control system, the opening of the discharge valve is enlarged and is vented into the atmosphere by the pressure regulator so that the compressor continues to operate with reduced drive power and generates less heat during the no-load condition. In the pressure control system, the pressure discharge valve as well as the suction valve are opened during the no-load condition.

REFERENCES:
patent: 3255954 (1966-06-01), Norlin et al.

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