SEPARATE PULSE VALVE FOR COMPRESSOR CYLINDER Russian patent published in 2014 - IPC F04B1/04 F04B1/22 F25B1/00 

FIELD: machine building.

SUBSTANCE: invention is related to compressors to be used in cooling systems. A piston compressor to be used in a cooling vapour compression system comprises the first and the second inlet manifolds, the first and the second piston compression units, an outlet manifold and the first pulse valve. The inlet manifolds divide the flow entering the compressor. The first and the second piston compression units receive the flow from the first and second inlet manifolds respectively. The outlet manifold collects and distributes the compressed cooling agent from the compression units. The first pulse valve is installed outside the first inlet manifold to control the cooling agent flow in the first inlet manifold. Another implementation version implies that the second valve is installed outside the second inlet manifold to control the flow in the second inlet manifold, and the first and the second valves are controlled by a controller. The controller actuates the first valve with variable width of pulses with their interval being less than the operating inertia of the cooling vapour compression system.

EFFECT: increased efficiency and simplified design of a compressor.

15 cl, 2 dwg