COMPRESSOR CONTROL DEVICE AND METHOD (VERSIONS) Russian patent published in 2012 - IPC F04B39/00 

FIELD: machine building.

SUBSTANCE: device includes compression mechanism, valve plate combined with compression mechanism and having at least one channel having fluid connection to compression mechanism and manifold located near the valve plate. Cylinder can be formed in manifold and piston can be located in manifold and can have the possibility of being moved relative to the manifold, between the first position in which it is detached from the above valve plate and the second position in which it is engaged with valve plate. Valve element can be located in the piston and can have the possibility of being moved relative to piston and manifold. Valve element can have the possibility of being moved between open position in which it is detached from valve plate and allows the fluid flow through the channel and to compression mechanism, and closed position in which it is engaged with valve plate and prohibits the fluid flow through the channel and to compression mechanism.

EFFECT: invention allows compressor operation in wide range of loads and controls the capacity taking into account the change of environmental conditions.

74 cl, 11 dwg