Valve system with a low reexpansion intended to compress a coolant (refrigerant)

摘要

a) Valve system with a low reexpansion intended to compress a coolant, …??b) Compressor device, characterised in that it comprises a cylinder head cover (20) mounted on the upper surface of the casing with the valve plate interposed between the two, this cylinder head cover comprising suspended means (72) intended to define an annular discharge orifice (71) with the central opening, this cylinder head cover (20) includes a discharge valve seat washer (74) provided with an upper surface (78) and a lower surface, this valve seat washer being fixed to the centre of the cylinder head cover by a bolt (26), this discharge valve device (18) comprises an annular discharge valve element (68) covering the valve seat and the washer; and an intake valve device (32) connected to the upper face (36) of the piston. … IMAGE …